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Prof. Mu. Naushad
king saud university

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Research Keywords & Expertise

0 Adsorption
0 Waste Management
0 Wastewater
0 photodegradation
0 water and Environment

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Short Biography

Mu. Naushad is a Full Professor in the Department of Chemistry, College of Science, King Saud University (KSU), Riyadh, Kingdom of Saudi Arabia. He has authored over 380 publications, seven US patents and several books/book chapters in the field of Material/Environmental Science. He has >17500 citations with a Google Scholar H-Index of >70. He has been included in the list of HIGHLY CITED RESEARCHERS-2019. He has successfully completed various research projects funded by National plan for Science and Technology (NPST) and King Abdulaziz City for Science and Technology (KACST), Kingdom of Saudi Arabia. He is the editor/editorial member of several reputed Journals like Scientific Report (Nature); Process Safety & Environmental Protection (Elsevier); Journal of Water Process Engineering (Elsevier). He is also the associate editor for Environmental Chemistry Letters (Springer) and Desalination & Water treatment (Taylor & Francis). In addition, he has been awarded the Scientist of the year award-2015 from National Environmental Science Academy, Delhi, India; Almarai Award-2017, Saudi Arabia; EET CRS TOP-25 SCIENTIST Award-2018, India and Best Research quality award-2019, King Saud University.

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Review
Published: 01 July 2021 in Chemosphere
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Millions of litters of multifarious wastewater are directly disposed into the environment annually to reduce the processing costs leading to eutrophication and destroying the clean water sources. The bioelectrochemical systems (BESs) have recently received significant attention from researchers due to their ability to convert waste into energy and their high efficiency of wastewater treatment. However, most of the performed researches of the BESs have focused on energy generation, which created a literature gap on the utilization of BESs for wastewater treatment. The review highlights this gap from various aspects, including the BESs trends, fundamentals, applications, and mechanisms. A different review approach has followed in the present work using a bibliometric review (BR) which defined the literature gap of BESs publications in the degradation process section and linked the systematic review (SR) with it to prove and review the finding systematically. The degradation mechanisms of the BESs have been illustrated comprehensively in the current work, and various suggestions have been provided for supporting future studies and cooperation.

ACS Style

Mohammed Al-Sahari; Adel Al-Gheethi; Radin Mohamed; Efaq Noman; M. Naushad; Mohd Baharudin Rizuan; Dai-Viet N. Vo; Norli Ismail. Green approach and strategies for wastewater treatment using bioelectrochemical systems: A critical review of fundamental concepts, applications, mechanism, and future trends. Chemosphere 2021, 131373 .

AMA Style

Mohammed Al-Sahari, Adel Al-Gheethi, Radin Mohamed, Efaq Noman, M. Naushad, Mohd Baharudin Rizuan, Dai-Viet N. Vo, Norli Ismail. Green approach and strategies for wastewater treatment using bioelectrochemical systems: A critical review of fundamental concepts, applications, mechanism, and future trends. Chemosphere. 2021; ():131373.

Chicago/Turabian Style

Mohammed Al-Sahari; Adel Al-Gheethi; Radin Mohamed; Efaq Noman; M. Naushad; Mohd Baharudin Rizuan; Dai-Viet N. Vo; Norli Ismail. 2021. "Green approach and strategies for wastewater treatment using bioelectrochemical systems: A critical review of fundamental concepts, applications, mechanism, and future trends." Chemosphere , no. : 131373.

Journal article
Published: 24 June 2021 in Science of The Total Environment
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The occurrence of pharmaceutical residues in the aquatic ecosystem is an emerging concern of environmentalists. This study primarily investigated the seasonal variation of high-priority pharmaceutical residues in the Yamuna River, accompanied by 22 drains discharge from different parts of Delhi. Five sampling sites were selected for analyzing high-priority pharmaceuticals along with physico-chemical and biological parameters for 3 season's viz. pre-monsoon (PrM), monsoon (DuM), and post-monsoon (PoM), respectively. The maximum occurrences were detected during the PoM, compared to the PrM and DuM seasons. The maximum concentration of BOD, COD, and Phosphate was detected at the last sampling station (SP-5). Similarly, all targeted pharmaceuticals concentration were maximum at the last sampling point i.e. Okhla barrage (SP-5, max: DIC = 556.1 ng/l, IBU = 223.4 ng/l, CAR = 183.1 ng/l, DIA = 457.8 ng/l, OFL = 1726.5 ng/l, FRU = 312.2 ng/l and SIM = 414.9 ng/l) except at Barapulla downstream (SP-4, max: ERY = 178.1 ng/l). The mean concentrations of Fecal coliform (FC) ranged from 1700 to 6500 CFU/100 ml. The maximum colonies were detected in PrM season (6500 CFU/100 ml) followed by PoM (5800 CFU/100 ml) and least in DuM (1700 CFU/100 ml). Risk quotient (RQ) analysis of high-priority pharmaceuticals indicated high ecotoxicological risks exposure (>1) from DIC, DIA, OFL, and SIM in all seasons at all the sampling sites. However, lower risk was predicted for IBU, CAR, ERY, and FRU, respectively. This risk assessment indicated an aquatic ecosystem potentially exposed to high risks from these pharmaceutical residues. Moreover, seasonal agricultural application, rainfall, and temperature could influence the levels and compositions of pharmaceutical residue in the aquatic ecosystem. Hence, attention is required particularly to this stream since it is only a local lifeline source for urban consumers for domestic water supply and farmers for cultivation.

ACS Style

Afzal Husain Khan; Hamidi Abdul Aziz; Nadeem A. Khan; Aastha Dhingra; Sirajuddin Ahmed; Mu. Naushad. Effect of seasonal variation on the occurrences of high-risk pharmaceutical in drain-laden surface water: A risk analysis of Yamuna River. Science of The Total Environment 2021, 794, 148484 .

AMA Style

Afzal Husain Khan, Hamidi Abdul Aziz, Nadeem A. Khan, Aastha Dhingra, Sirajuddin Ahmed, Mu. Naushad. Effect of seasonal variation on the occurrences of high-risk pharmaceutical in drain-laden surface water: A risk analysis of Yamuna River. Science of The Total Environment. 2021; 794 ():148484.

Chicago/Turabian Style

Afzal Husain Khan; Hamidi Abdul Aziz; Nadeem A. Khan; Aastha Dhingra; Sirajuddin Ahmed; Mu. Naushad. 2021. "Effect of seasonal variation on the occurrences of high-risk pharmaceutical in drain-laden surface water: A risk analysis of Yamuna River." Science of The Total Environment 794, no. : 148484.

Review
Published: 17 May 2021 in Journal of Hazardous Materials
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The aim of this article is to review and present the state of the arte about the status of toxic elements (TEs) in soils and assess the potential risk using single and total complex pollution indices in a global scale. We compiled, integrated, and analyzed soil TE pollution data over almost a decade through key maps, which have not been reviewed up to date. All the in-situ and ex-situ remediation treatments have been also reviewed, illustrated, and compared, for the first time. The future perspectives have been discussed and summarized. This review demonstrates that the cornerstone maps and integrated information provide reliable geographical coordinates and inclusive information on TEs pollution, particularly in China. In-situ treatment approaches for TEs polluted soils are more cost-effective and applicable than ex-situ treatment trials. Selecting a feasible remediation strategy should to take the extent of contamination, treatment objectives, site characteristics, cost-efficiency, and public suitability into account. The summarized findings in this review may help to develop innovative and applicable methods for assessing the global soil pollution by TEs. Also, these findings may help to develop innovative, applicable, and feasibly economic methods for sustainable management of TEs contaminated soils to mitigate the environmental and human health risk.

ACS Style

Shamshad Khan; Mu. Naushad; Eder C. Lima; Shengxin Zhang; Sabry M. Shaheen; Jörg Rinklebe. Global soil pollution by toxic elements: Current status and future perspectives on the risk assessment and remediation strategies – A review. Journal of Hazardous Materials 2021, 417, 126039 .

AMA Style

Shamshad Khan, Mu. Naushad, Eder C. Lima, Shengxin Zhang, Sabry M. Shaheen, Jörg Rinklebe. Global soil pollution by toxic elements: Current status and future perspectives on the risk assessment and remediation strategies – A review. Journal of Hazardous Materials. 2021; 417 ():126039.

Chicago/Turabian Style

Shamshad Khan; Mu. Naushad; Eder C. Lima; Shengxin Zhang; Sabry M. Shaheen; Jörg Rinklebe. 2021. "Global soil pollution by toxic elements: Current status and future perspectives on the risk assessment and remediation strategies – A review." Journal of Hazardous Materials 417, no. : 126039.

Review article
Published: 24 April 2021 in Chemical Engineering Journal
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Artificial intelligence (AI) has emerged as a powerful tool to resolve real-world problems and has gained tremendous attention due to its applications in various fields. In recent years, AI techniques have also been employed in water treatment and desalination to optimize the process and to offer practical solutions to water pollution and water scarcity. Applications of AI is also expected to reduce the operational expenditures of the water treatment process by decreasing the cost and optimizing chemicals usage. This review summarizes various AI techniques and their applications in water treatment with a focus on the adsorption of pollutants. Numerous AI models have successfully predicted the performance of different adsorbents for the removal of numerous pollutants from water. This review also highlighted some challenges and research gap concerning applications of AI in water treatment. Despite several advantages offered by AI, there some limitations that hindered the widespread applications of these techniques in real water treatment. The availability and selection of data, poor reproducibility, less evidence of applications in real water treatment are some key challenges that need to be addressed. Recommendations are made to ensure the successful applications of AI in future water-related technologies. This review is beneficial for environmental researchers, engineers, students, and all stakeholders in the water industry.

ACS Style

Gulzar Alam; Ihsanullah Ihsanullah; Mu. Naushad; Mika Sillanpää. Applications of artificial intelligence in water treatment for the optimization and automation of the adsorption process: Recent advances and prospects. Chemical Engineering Journal 2021, 130011 .

AMA Style

Gulzar Alam, Ihsanullah Ihsanullah, Mu. Naushad, Mika Sillanpää. Applications of artificial intelligence in water treatment for the optimization and automation of the adsorption process: Recent advances and prospects. Chemical Engineering Journal. 2021; ():130011.

Chicago/Turabian Style

Gulzar Alam; Ihsanullah Ihsanullah; Mu. Naushad; Mika Sillanpää. 2021. "Applications of artificial intelligence in water treatment for the optimization and automation of the adsorption process: Recent advances and prospects." Chemical Engineering Journal , no. : 130011.

Journal article
Published: 24 April 2021 in Journal of Molecular Liquids
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The removal of toxic dyes from the wastewater is a serious concern. One of the commonly employed dyes in the textile industry is methylene blue (MB). Its presence in water not only reduces the aesthetic value of the water but also affects aquatic life. Considering this, we have worked on the designing of Bi2O3[email protected]2 nanocomposite using a simple microwave irradiation method. The synthesized Bi2O3[email protected]2 nanocomposite was characterized by various techniques such as scanning electron microscope, transmission electron microscope, X-Ray diffractometer, elemental mapping, Energy- dispersive X-Ray, and X-ray photoelectron spectrophotometer. The adsorption technique was utilized for the effective removal of MB using Bi2O3[email protected]2 nanocomposite. Effects of various factors such as the concentration of MB, amount of Bi2O3[email protected]2 nanocomposite, and reaction time were undertaken for getting some optimized parameters for the further experiments. Adsorption isotherm models such as Langmuir, Freundlich, and Temkin were employed for the adsorption data. Besides, adsorption kinetic models such as Pseudo- first order and Pseudo- second-order were also studied for determining the rate of the undertaken adsorption process. At last, the reusability of the Bi2O3[email protected]2 nanocomposite was studied for six consecutive cycles for elaborating the practical application of the synthesized adsorbent.

ACS Style

Taghrid S. Alomar; Najla AlMasoud; Gaurav Sharma; Zeid A. Alothman; Mu. Naushad. Incorporation of trimetallic nanoparticles to the SiO2 matrix for the removal of methylene blue dye from aqueous medium. Journal of Molecular Liquids 2021, 336, 116274 .

AMA Style

Taghrid S. Alomar, Najla AlMasoud, Gaurav Sharma, Zeid A. Alothman, Mu. Naushad. Incorporation of trimetallic nanoparticles to the SiO2 matrix for the removal of methylene blue dye from aqueous medium. Journal of Molecular Liquids. 2021; 336 ():116274.

Chicago/Turabian Style

Taghrid S. Alomar; Najla AlMasoud; Gaurav Sharma; Zeid A. Alothman; Mu. Naushad. 2021. "Incorporation of trimetallic nanoparticles to the SiO2 matrix for the removal of methylene blue dye from aqueous medium." Journal of Molecular Liquids 336, no. : 116274.

Review
Published: 22 March 2021 in Polymers
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Covalent Organic Frameworks (COFs) are an exciting new class of microporous polymers with unprecedented properties in organic material chemistry. They are generally built from rigid, geometrically defined organic building blocks resulting in robust, covalently bonded crystalline networks that extend in two or three dimensions. By strategically combining monomers with specific structures and properties, synthesized COF materials can be fine-tuned and controlled at the atomic level, with unparalleled precision on intrapore chemical environment; moreover, the unusually high pore accessibility allows for easy post-synthetic pore wall modification after the COF is synthesized. Overall, COFs combine high, permanent porosity and surface area with high thermal and chemical stability, crystallinity and customizability, making them ideal candidates for a myriad of promising new solutions in a vast number of scientific fields, with widely varying applications such as gas adsorption and storage, pollutant removal, degradation and separation, advanced filtration, heterogeneous catalysis, chemical sensing, biomedical applications, energy storage and production and a vast array of optoelectronic solutions. This review attempts to give a brief insight on COF history, the overall strategies and techniques for rational COF synthesis and post-synthetic functionalization, as well as a glance at the exponentially growing field of COF research, summarizing their main properties and introducing the numerous technological and industrial state of the art applications, with noteworthy examples found in the literature.

ACS Style

Tiago Machado; M. Serra; Dina Murtinho; Artur Valente; Mu. Naushad. Covalent Organic Frameworks: Synthesis, Properties and Applications—An Overview. Polymers 2021, 13, 970 .

AMA Style

Tiago Machado, M. Serra, Dina Murtinho, Artur Valente, Mu. Naushad. Covalent Organic Frameworks: Synthesis, Properties and Applications—An Overview. Polymers. 2021; 13 (6):970.

Chicago/Turabian Style

Tiago Machado; M. Serra; Dina Murtinho; Artur Valente; Mu. Naushad. 2021. "Covalent Organic Frameworks: Synthesis, Properties and Applications—An Overview." Polymers 13, no. 6: 970.

Review
Published: 18 March 2021 in Chemosphere
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Water scarcity and its pollution has become a concern in recent times. The disposal of nutrient-rich (nitrogen and phosphorous) wastewater is also one of the main cause of water pollution through eutrophication, reduced dissolved oxygen that poses threat to aquatic ecosystems. As a result, nutrient removal has become a mandate apart from the removal of organics. However, the removal of nutrients from sewage is a challenging task. Conversely, conventional biological treatment processes provide little relief in nutrient removal. The treated effluents from conventional biological processes do not achieve the stringent nutrient removal disposal standard limits and become primary cause of pollution in the receiving water bodies. This has stressed upon the need for eco-friendly, low-energy and cost-efficient nutrient removal treatment technologies. Various biological treatment combinations or variants are in use for the efficient removal of nutrients. The biological processes in itself or in combination with chemical processes are preferred over technologies based solely on physico-chemical processes for its treatment performance at lower cost. This review summarizes the existing treatment processes and their possible up-gradation with the aim to accomplish the marked effluent standards for the nutrients. The concept of conventional systems and advanced systems for nutrients (nitrogen and phosphorous) removal which are already developed or under development are deeply discussed. Further, the challenges of each treatment systems are abridged. Finally, the possible suggestions for the modification/retrofitting of existing treatment systems for achieving stringent disposal standards are pointed out.

ACS Style

Mohd. Najibul Hasan; Mohd. Musheer Altaf; Nadeem A. Khan; Afzal Husain Khan; Abid Ali Khan; Sirajuddin Ahmed; P. Senthil Kumar; Mu. Naushad; Anushka Upamali Rajapaksha; Jibran Iqbal; Vineet Tirth; Saiful Islam. Recent technologies for nutrient removal and recovery from wastewaters: A review. Chemosphere 2021, 277, 130328 .

AMA Style

Mohd. Najibul Hasan, Mohd. Musheer Altaf, Nadeem A. Khan, Afzal Husain Khan, Abid Ali Khan, Sirajuddin Ahmed, P. Senthil Kumar, Mu. Naushad, Anushka Upamali Rajapaksha, Jibran Iqbal, Vineet Tirth, Saiful Islam. Recent technologies for nutrient removal and recovery from wastewaters: A review. Chemosphere. 2021; 277 ():130328.

Chicago/Turabian Style

Mohd. Najibul Hasan; Mohd. Musheer Altaf; Nadeem A. Khan; Afzal Husain Khan; Abid Ali Khan; Sirajuddin Ahmed; P. Senthil Kumar; Mu. Naushad; Anushka Upamali Rajapaksha; Jibran Iqbal; Vineet Tirth; Saiful Islam. 2021. "Recent technologies for nutrient removal and recovery from wastewaters: A review." Chemosphere 277, no. : 130328.

Journal article
Published: 10 March 2021 in Journal of Environmental Chemical Engineering
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The novel point of this study is utilization of alum as a cheap compound and cement kiln dust by-product waste resulted from cement industry in the production of layered double hydroxide (LDH) of calcium and aluminum. The gel-solution of this compound was identified by X-ray diffraction (XRD) analysis and immobilized on the sand surfaces to create new sorbent named “sand coated with (Ca/Al)-LDH”. To obtain the highest adsorption capacity for prepared sorbent-Congo red dye interaction, the synthesis parameters were: pH 8, (Ca/Al) molar ratio 2 and dosage of sand 1 g/100 mL. Batch and continuous studies demonstrated that the prepared material was an effective and efficient sorbent for the removal of Congo red dye from simulated wastewater. For initial dye concentration of 50 mg/L, more than 90% of this dye was removed in the batch tests under initial pH-7, time-60 min, sorbent dosage-0.2 g/50 mL and speed-200 rpm with maximum adsorption capacity of 60.64 mg/g. Sorption isotherm and kinetic measurements have formulated in precision manner by Langmuir and pseudo second-order models, respectively and this means that the dye removed by chemisorption. Also, characterization analyses signified that the new nanoparticles precipitated on the sand have significant participation in the supporting of dye sorption. Finally, the longevity of prepared sorbent in packed column increased dramatically with decreasing of flow rate and inlet concentration of contaminant as well as increasing of sorbent mass. Measured breakthrough curves were well simulated by numerical modeling for solute transport equation solved by COMSOL package.

ACS Style

Ayad A.H. Faisal; Ahmed H. Shihab; Mu. Naushad; Tansir Ahamad; Gaurav Sharma; Khalid M. Al-Sheetan. Green synthesis for novel sorbent of sand coated with (Ca/Al)-layered double hydroxide for the removal of toxic dye from aqueous environment. Journal of Environmental Chemical Engineering 2021, 9, 105342 .

AMA Style

Ayad A.H. Faisal, Ahmed H. Shihab, Mu. Naushad, Tansir Ahamad, Gaurav Sharma, Khalid M. Al-Sheetan. Green synthesis for novel sorbent of sand coated with (Ca/Al)-layered double hydroxide for the removal of toxic dye from aqueous environment. Journal of Environmental Chemical Engineering. 2021; 9 (4):105342.

Chicago/Turabian Style

Ayad A.H. Faisal; Ahmed H. Shihab; Mu. Naushad; Tansir Ahamad; Gaurav Sharma; Khalid M. Al-Sheetan. 2021. "Green synthesis for novel sorbent of sand coated with (Ca/Al)-layered double hydroxide for the removal of toxic dye from aqueous environment." Journal of Environmental Chemical Engineering 9, no. 4: 105342.

Review article
Published: 07 March 2021 in Journal of Water Process Engineering
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A wide range of emerging contaminants (ECs), such as pharmaceutically active compounds, personal care products (PCPs), endocrine-disrupting compounds (EDCs), and hormones are released into hospital wastewater (HWW). These contaminants can enter into natural environments, such as aquatic and terrestrial ones, thereby threatening human health and aquatic life. Conventional wastewater treatment plants are not designed to treat all types of chemical and biological contaminants, thereby allowing the release of these contaminants into water bodies, such as rivers, streams, and groundwater. Accordingly, adequate measures and advanced technologies should be implemented to prevent the discharge of ECs into aquatic environments. Reducing environmental health risks of HWW is particularly important amid the persistence of the COVID-19 pandemic. Although the necessary guidelines and legislation for wastewater treatment are available, efficient removal of ECs from HWW requires the applications of advanced treatment technologies. This paper provides a comprehensive review of the existing healthcare structures, ECs pathways to the environment, management practices, and effective treatment options for removing ECs from HWW. A critical evaluation of the current research advances, knowledge gaps, and directions for future research is also presented.

ACS Style

Muhammad Tariq Khan; Izaz Ali Shah; Ihsanullah Ihsanullah; Mu. Naushad; Sharafat Ali; Syed Hassan Ali Shah; Abdul Wahab Mohammad. Hospital wastewater as a source of environmental contamination: An overview of management practices, environmental risks, and treatment processes. Journal of Water Process Engineering 2021, 41, 101990 .

AMA Style

Muhammad Tariq Khan, Izaz Ali Shah, Ihsanullah Ihsanullah, Mu. Naushad, Sharafat Ali, Syed Hassan Ali Shah, Abdul Wahab Mohammad. Hospital wastewater as a source of environmental contamination: An overview of management practices, environmental risks, and treatment processes. Journal of Water Process Engineering. 2021; 41 ():101990.

Chicago/Turabian Style

Muhammad Tariq Khan; Izaz Ali Shah; Ihsanullah Ihsanullah; Mu. Naushad; Sharafat Ali; Syed Hassan Ali Shah; Abdul Wahab Mohammad. 2021. "Hospital wastewater as a source of environmental contamination: An overview of management practices, environmental risks, and treatment processes." Journal of Water Process Engineering 41, no. : 101990.

Journal article
Published: 15 February 2021 in Journal of Molecular Liquids
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In the present study, we have fabricated novel magnetic ionic liquid based nanocomposites using 1-butylimidazole, (3-bromopropyl)-trimethoxysilane and NiFe2O4 nanoparticles. [[email protected]]HSO4 was synthesized from [[email protected]]Br via ion-exchange process. The fabricated nanocomposites were characterized by various analytical techniques. The surface area was determined using N2 adsorption-desorption analysis and the BET surface area of [[email protected]]Br and [[email protected]]HSO4 was noted to be 89.21 and 87.21 m2/g, respectively. The fabricated nanocomposites were used as catalyst for the transesterification of palm oil (VO) for the production of biodiesel. The results revealed that [[email protected]]HSO4 exhibited better performance in terms of biodiesel yield; a maximum i.e. 86.4% yield was obtained using [[email protected]]HSO4 while in the case of [email protected]]Br, about ~74.6% yield was found with 5% (w/w) catalyst loading, 353 K and to CH3OH ratio of 1:12 in 8 h. The reusability of the catalyst results revealed that the catalytic activity of the catalysts still remained about 92.7% and 88.1% with [email protected]]HSO4 and [email protected]]Br, respectively after six cycles which may be accredited to the handling loss during the manipulation process.

ACS Style

Mu. Naushad; Tansir Ahamad; Mohammad Rizwan Khan. Fabrication of magnetic nanoparticles supported ionic liquid catalyst for transesterification of vegetable oil to produce biodiesel. Journal of Molecular Liquids 2021, 330, 115648 .

AMA Style

Mu. Naushad, Tansir Ahamad, Mohammad Rizwan Khan. Fabrication of magnetic nanoparticles supported ionic liquid catalyst for transesterification of vegetable oil to produce biodiesel. Journal of Molecular Liquids. 2021; 330 ():115648.

Chicago/Turabian Style

Mu. Naushad; Tansir Ahamad; Mohammad Rizwan Khan. 2021. "Fabrication of magnetic nanoparticles supported ionic liquid catalyst for transesterification of vegetable oil to produce biodiesel." Journal of Molecular Liquids 330, no. : 115648.

Book chapter
Published: 29 January 2021 in Smart Polymer Nanocomposites
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The discovery of smart polymers has made a huge impact on the biomedical field and its usage in drug delivery has increased tremendously. Smart polymers are those which are man-made and have specific polymeric properties. Scientists have been attracted to the property for using these polymers for delivery of drugs. Smart polymers are site specific, so they are preferred for drug delivery. They are also known as “Intelligent Delivery Systems” because of their ability to deliver at accurate time and specific sites. Smart polymers are hindered by certain physical, chemical, and biological stimuli. They undergo large changes in response to the variation in pH, temperature, light, etc. (physical stimuli). Some polymers are reversible and are also able to return to their original initial state. Tremendous advancement in this area has led to the design of nanocarrier-based drug-delivery system. The nanocarrier-based drug-delivery system has fewer side effects as compared to the normal methods. This nanoscale delivery system enables diffusion at the cellular and subcellular levels. One of the advantages of the polymer is that the sensitivity can be narrowed within a range. Also, when these polymers are programmed to be biodegradable, they can be used to deliver bioactive drugs which include peptides and proteins. In this chapter, different types of polymers, nanocarriers, and the application of smart polymers have been reviewed.

ACS Style

B.T. Darsini; Apsara Sudhakar; Krithika Balakrishnan; N. Sivarajasekar; Mu. Naushad; Swapnil Dharaskar. Application of smart polymers in nanomedicine. Smart Polymer Nanocomposites 2021, 215 -233.

AMA Style

B.T. Darsini, Apsara Sudhakar, Krithika Balakrishnan, N. Sivarajasekar, Mu. Naushad, Swapnil Dharaskar. Application of smart polymers in nanomedicine. Smart Polymer Nanocomposites. 2021; ():215-233.

Chicago/Turabian Style

B.T. Darsini; Apsara Sudhakar; Krithika Balakrishnan; N. Sivarajasekar; Mu. Naushad; Swapnil Dharaskar. 2021. "Application of smart polymers in nanomedicine." Smart Polymer Nanocomposites , no. : 215-233.

Journal article
Published: 16 January 2021 in Journal of Molecular Liquids
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A simple “green” method for the synthesis of cobalt‑zinc ferrites nanoparticles has been proposed. XRD, SEM/EDX, TEM, Mössbauer and FTIR techniques have been applied to investigate structure and morphology of the obtained spinel ferrites. Analysis of the cation distribution showed that during the transition from cobalt ferrite to zinc ferrite the inversion degree of the Fe cations decreases from δ = 0.89 to δ = 0.00. IR spectra show the presence of characteristic peaks of the MA-O (at ~450 cm−1) and MB-O (at ~610 cm−1) vibrations as well as the vibrations of functional groups of the honey residuals. It was concluded that honey acts as reductant and stabilizer preventing agglomeration of the nanoparticles. The force constants of the tetrahedral and octahedral bonds have been calculated. Dependence of the Debye temperature on Zn content was also established for the first time: it is increased from 782 K to 805 K with Zn increasing. It was shown that the ZnFe2O4 sample exhibits the highest adsorption capacity (289 mg/g) towards lead cations. This result is explained in terms of surface acidity of the examined samples, estimated from the variations of the ionic-covalent bond parameter. The Langmuir, Freundlich and Dubinin-Radushkevich models were tested to evaluate the adsorption mechanism. The efficiency of heat release by the CoxZn1-xFe2O4 magnetic nanoparticles for magnetic hyperthermia was investigated as well. The registered induction heating curves depend on the Zn content in the CoxZn1-xFe2O4 samples. The sample with х(Zn) = 0.6 exhibits the maximal specific loss power equal to 2.56 W/g. The intrinsic loss power (ILP) value is 0.40, and is 2.7 times higher than the ILP value of commercial Fe3O4. The obtained ferrite materials can be, therefore, used in magnetic hyperthermia applications and Pb(II) adsorption.

ACS Style

Tetiana Tatarchuk; Alexander Shyichuk; Zbigniew Sojka; Joanna Gryboś; Mu. Naushad; Volodymyr Kotsyubynsky; Maria Kowalska; Sylwia Kwiatkowska-Marks; Nazarii Danyliuk. Green synthesis, structure, cations distribution and bonding characteristics of superparamagnetic cobalt-zinc ferrites nanoparticles for Pb(II) adsorption and magnetic hyperthermia applications. Journal of Molecular Liquids 2021, 328, 115375 .

AMA Style

Tetiana Tatarchuk, Alexander Shyichuk, Zbigniew Sojka, Joanna Gryboś, Mu. Naushad, Volodymyr Kotsyubynsky, Maria Kowalska, Sylwia Kwiatkowska-Marks, Nazarii Danyliuk. Green synthesis, structure, cations distribution and bonding characteristics of superparamagnetic cobalt-zinc ferrites nanoparticles for Pb(II) adsorption and magnetic hyperthermia applications. Journal of Molecular Liquids. 2021; 328 ():115375.

Chicago/Turabian Style

Tetiana Tatarchuk; Alexander Shyichuk; Zbigniew Sojka; Joanna Gryboś; Mu. Naushad; Volodymyr Kotsyubynsky; Maria Kowalska; Sylwia Kwiatkowska-Marks; Nazarii Danyliuk. 2021. "Green synthesis, structure, cations distribution and bonding characteristics of superparamagnetic cobalt-zinc ferrites nanoparticles for Pb(II) adsorption and magnetic hyperthermia applications." Journal of Molecular Liquids 328, no. : 115375.

Research article
Published: 21 December 2020 in Critical Reviews in Environmental Science and Technology
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Hydrometallurgical approaches have been successfully employed for metal separation and recovery from various types of waste materials. Therefore, hydrometallurgy is a promising technology for metal recovery and the removal of potentially toxic heavy metals found in industrial sludge. However, a comprehensive review that focuses on the heavy metal recovery from industrial sludge using hydrometallurgical approaches has not been conducted in the recent past. The present review discusses the capacity of hydrometallurgical techniques in recovering heavy metals sourced from different types of industrial sludges, highlighting recent scientific findings. Hydrometallurgical approaches primarily consist of three process stages: metal dissolution, concentration and purification, and metal recovery. The chemical characteristics of industrial sludge, including the type, concentration and speciation of heavy metals, directly impact selection of the best recovery method. Solvent extraction, ion-exchange, and adsorption are the major techniques employed in concentration and purification, whereas electrodeposition and precipitation are the main methods used in metals recovery. Future research should focus on the development of more efficient and environmentally-friendly methods for metal dissolution from industrial sludges contaminated with multiple metals, while increasing selectivity and energy use efficiency in the concentration and purification, and recovery steps. Graphical Abstract

ACS Style

Viraj Gunarathne; Anushka Upamali Rajapaksha; Meththika Vithanage; Daniel S. Alessi; Rangabhashiyam Selvasembian; Mu. Naushad; Siming You; Patryk Oleszczuk; Yong Sik Ok. Hydrometallurgical processes for heavy metals recovery from industrial sludges. Critical Reviews in Environmental Science and Technology 2020, 1 -41.

AMA Style

Viraj Gunarathne, Anushka Upamali Rajapaksha, Meththika Vithanage, Daniel S. Alessi, Rangabhashiyam Selvasembian, Mu. Naushad, Siming You, Patryk Oleszczuk, Yong Sik Ok. Hydrometallurgical processes for heavy metals recovery from industrial sludges. Critical Reviews in Environmental Science and Technology. 2020; ():1-41.

Chicago/Turabian Style

Viraj Gunarathne; Anushka Upamali Rajapaksha; Meththika Vithanage; Daniel S. Alessi; Rangabhashiyam Selvasembian; Mu. Naushad; Siming You; Patryk Oleszczuk; Yong Sik Ok. 2020. "Hydrometallurgical processes for heavy metals recovery from industrial sludges." Critical Reviews in Environmental Science and Technology , no. : 1-41.

Journal article
Published: 11 December 2020 in Journal of Hazardous Materials
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In the present study, starch based ZnO nancomposite (CSt-ZnO) was synthesized for the efficient removal of Pb(II) ions from aqueous medium. The structure and morphology of CSt-ZnO nancomposite was characterized using SEM, FTIR, TGA, BET, XPS and zeta potential measurements. The effect of contact time, pH, temperature and initial concentration of Pb(II) on the adsorption was studied. The optimum parameters for maximum Pb(II) removal were time-120 min; pH-6; temperature-318 K and Co–20 ppm. The maximum Langmuir adsorption capacity of CSt-ZnO nancomposite was 256.4 mg/g at 298 K. With increasing the temperature from 298 K to 318 K, the maximum adsorption quantity (qm) was improved from 256.4 to 476 mg/g which showed the endothermic nature of Pb(II) adsorption on CSt-ZnO nanocomposite. The sorption isotherm and kinetics model fitting studies, confirmed that data fit well to Freundlich isotherm and pseudo-first-order kinetics models, respectively. Thermodynamic studies inferred a spontaneous and endothermic nature of adsorption. Moreover, the adsorption capacity was 68% even after four adsorption-desorption cycles which revealed the reusable performance of CSt-ZnO was well. The antimicrobial activity of CSt-ZnO nanocomposite was also examined against S. aureus and E. coli.

ACS Style

Mu. Naushad; Tansir Ahamad; Khalid M. Al-Sheetan. Development of a polymeric nanocomposite as a high performance adsorbent for Pb(II) removal from water medium: Equilibrium, kinetic and antimicrobial activity. Journal of Hazardous Materials 2020, 407, 124816 .

AMA Style

Mu. Naushad, Tansir Ahamad, Khalid M. Al-Sheetan. Development of a polymeric nanocomposite as a high performance adsorbent for Pb(II) removal from water medium: Equilibrium, kinetic and antimicrobial activity. Journal of Hazardous Materials. 2020; 407 ():124816.

Chicago/Turabian Style

Mu. Naushad; Tansir Ahamad; Khalid M. Al-Sheetan. 2020. "Development of a polymeric nanocomposite as a high performance adsorbent for Pb(II) removal from water medium: Equilibrium, kinetic and antimicrobial activity." Journal of Hazardous Materials 407, no. : 124816.

Journal article
Published: 09 December 2020 in Polymers
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In the present study, a polymeric nanocomposite, [email protected], was fabricated using 2,4 dihydroxybenzaldehyde and formaldehyde in basic medium with CoFe2O4 nanoparticles. The fabricated nanocomposite was characterized using FTIR, TGA, XRD, SEM, TEM, and XPS analyses. The analytical results revealed that the magnetic nanocomposite was fabricated successfully with high surface area 370.24 m2/g. The fabricated [email protected] was used as an efficient adsorbent for the adsorption of U(VI) and Eu(III) ions from contaminated water. pH, initial concentration, adsorption time, and the temperature of the contaminated water solution affecting the adsorption ability of the nanocomposites were studied. The batch adsorption results exposed that the adsorption capacity for the removal of U(VI) and Eu(III) was found to be 237.5 and 225.5 mg/g. The adsorption kinetics support that both the metal ions follow second order adsorption kinetics. The adsorption isotherm well fits with the Langmuir adsorption isotherm and the correlation coefficient (R2) values were found to be 0.9920 and 0.9913 for the adsorption of U(VI) and Eu(III), respectively. It was noticed that the fabricated nanocomposites show excellent regeneration ability and about 220.1 and 211.3 mg/g adsorption capacity remains with U(VI) and Eu(III) under optimum conditions.

ACS Style

Tansir Ahamad; Mu. Naushad; Mohd Ubaidullah; Saad AlShehri. Fabrication of Highly Porous Polymeric Nanocomposite for the Removal of Radioactive U(VI) and Eu(III) Ions from Aqueous Solution. Polymers 2020, 12, 2940 .

AMA Style

Tansir Ahamad, Mu. Naushad, Mohd Ubaidullah, Saad AlShehri. Fabrication of Highly Porous Polymeric Nanocomposite for the Removal of Radioactive U(VI) and Eu(III) Ions from Aqueous Solution. Polymers. 2020; 12 (12):2940.

Chicago/Turabian Style

Tansir Ahamad; Mu. Naushad; Mohd Ubaidullah; Saad AlShehri. 2020. "Fabrication of Highly Porous Polymeric Nanocomposite for the Removal of Radioactive U(VI) and Eu(III) Ions from Aqueous Solution." Polymers 12, no. 12: 2940.

Journal article
Published: 03 December 2020 in Journal of King Saud University - Science
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The search of low cost, highly competent electrode material is the hot research area for various next-gen applications. Herein, cost effective nitrogen doped carbon quantum dots (N-CQDs) anchored in cobalt oxide (Co3O4) nanocomposite was fabricated through a simple hydrothermal method. The fabricated N-CQDs/Co3O4 nanocomposite showed high specific surface area (BET) of ~880 m2 g−1 with BJH pore size and volume of ~21 nm, 0.81945 cm3 g−1 respectively. The electrochemical performance through cyclic voltammetry (CV) in 3-electrode systems exhibited an improved specific capacitance of 1782 F g−1 at 5 mV s−1 in 6 M KOH electrolyte. Additionally, galvanostatic charge–discharge (GCD) analysis showed an improved capacitive performance with a specific capacitance of 1867 F g−1 at 1 A g−1 current density. The energy density was calculated 36.9 Wh kg−1 at the power density of 480 W kg−1. The capacitance retention graph demonstrates 96% stability through 500 GCD cycles.

ACS Style

Mu. Naushad; Tansir Ahamad; Mohd Ubaidullah; Jahangeer Ahmed; Ayman A. Ghafar; Khalid M. Al-Sheetan; Prabhakarn Arunachalam. Nitrogen-doped carbon quantum dots (N-CQDs)/Co3O4 nanocomposite for high performance supercapacitor. Journal of King Saud University - Science 2020, 33, 101252 .

AMA Style

Mu. Naushad, Tansir Ahamad, Mohd Ubaidullah, Jahangeer Ahmed, Ayman A. Ghafar, Khalid M. Al-Sheetan, Prabhakarn Arunachalam. Nitrogen-doped carbon quantum dots (N-CQDs)/Co3O4 nanocomposite for high performance supercapacitor. Journal of King Saud University - Science. 2020; 33 (1):101252.

Chicago/Turabian Style

Mu. Naushad; Tansir Ahamad; Mohd Ubaidullah; Jahangeer Ahmed; Ayman A. Ghafar; Khalid M. Al-Sheetan; Prabhakarn Arunachalam. 2020. "Nitrogen-doped carbon quantum dots (N-CQDs)/Co3O4 nanocomposite for high performance supercapacitor." Journal of King Saud University - Science 33, no. 1: 101252.

Journal article
Published: 03 December 2020 in Chemical Engineering Journal
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In this study, we fabricate a highly optical active photocatalytic FeWO4/NC by hydrothermal process and characterized. The fabricated photocatalyst was used for the degradation of ciprofloxacin (CIF) under visual light. The initial concentration, contact time and the pH of the solution variate the degradation of CIP in aqueous solution. The scavenger effect was carried out to determine the hole, radicals and the photogenerated species used for the degradation. The FeWO4/NC-800showed excellent photodegradation of CIP because of its larger surface area and porous structure. Around 92.23% of the degradation of these pharmaceuticals was achieved within 100 min. The kinetic results support the degradation was carried out via first order kinetics and the rate constant was found to be 0.0240 min−1. The FeWO4/NC-800 nanocomposite would be a good candidate for CIP degradation by photocatalysis in contaminated water.

ACS Style

Tansir Ahamad; Mu. Naushad; Saad M. Alshehri. Analysis of degradation pathways and intermediates products for ciprofloxacin using a highly porous photocatalyst. Chemical Engineering Journal 2020, 417, 127969 .

AMA Style

Tansir Ahamad, Mu. Naushad, Saad M. Alshehri. Analysis of degradation pathways and intermediates products for ciprofloxacin using a highly porous photocatalyst. Chemical Engineering Journal. 2020; 417 ():127969.

Chicago/Turabian Style

Tansir Ahamad; Mu. Naushad; Saad M. Alshehri. 2020. "Analysis of degradation pathways and intermediates products for ciprofloxacin using a highly porous photocatalyst." Chemical Engineering Journal 417, no. : 127969.

Short communication
Published: 12 November 2020 in Materials Letters
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Environmental friendly and robust Mg0.5-xCuxZn0.5Fe2O4(x = 0, 0.01 & 0.02) nano-photocatalyst was prepared by facile solution combustion method for high performance photocatalytic removal of carbamazepine (CBZ). Mg0.3Cu0.2Zn0.5Fe2O4 catalyst shows 94.3% degradation in 90 min visible exposure and 78.2% total organic carbon (TOC) removal. The Cu dopant driven conduction band shifting to more negative side leads to improved ●O2– formation supported by electron spin resonance (ESR) probe. The dopants and metal redox cycles lead to higher visible absorption and reduced recombination boosting the CBZ removal. The degradation pathway and photocatalytic mechanism is also predicted.

ACS Style

Pooja Dhiman; Manisha Patial; Amit Kumar; Manawwer Alam; Mu. Naushad; Gaurav Sharma; Dai-Viet N. Vo; Rajesh Kumar. Environmental friendly and robust Mg0.5-xCuxZn0.5Fe2O4 spinel nanoparticles for visible light driven degradation of Carbamazepine: Band shift driven by dopants. Materials Letters 2020, 284, 129005 .

AMA Style

Pooja Dhiman, Manisha Patial, Amit Kumar, Manawwer Alam, Mu. Naushad, Gaurav Sharma, Dai-Viet N. Vo, Rajesh Kumar. Environmental friendly and robust Mg0.5-xCuxZn0.5Fe2O4 spinel nanoparticles for visible light driven degradation of Carbamazepine: Band shift driven by dopants. Materials Letters. 2020; 284 ():129005.

Chicago/Turabian Style

Pooja Dhiman; Manisha Patial; Amit Kumar; Manawwer Alam; Mu. Naushad; Gaurav Sharma; Dai-Viet N. Vo; Rajesh Kumar. 2020. "Environmental friendly and robust Mg0.5-xCuxZn0.5Fe2O4 spinel nanoparticles for visible light driven degradation of Carbamazepine: Band shift driven by dopants." Materials Letters 284, no. : 129005.

Journal article
Published: 24 October 2020 in International Journal of Biological Macromolecules
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In the present study, we have fabricated magnetic nanocomposite based on the starch and salicylaldehyde resin embedded with magnetic Fe3O4 nanoparticles ([email protected]3O4). The fabricated nanocomposite was characterized using various analytical methods including XRD, SEM, FTIR, TGA, TEM, BET and XPS. As-fabricated nanocomposite was used for the adsorption of Pb(II) and Cd(II) from aqueous solution. The adsorption results revealed that the maximum adsorption capacity was found to be 265.4 and 247.2 mg/g for Pb(II) and Cd(II) respectively at pH 6 and room temperature. The adsorption kinetic results support that the adsorption of both the toxic metals was carried out via second order reaction and the rate constants were found to be 6.31 × 10−5 and 7.18 × 10−5 g·mg−1·min−1 for Pb(II) and Cd(II) respectively. The adsorption isotherm displays the Langmuir adsorption isotherm and supports the monolayer and mainly chemisorption with poor physisorption. Additionally, the thermodynamic parameters were evaluated and the adsorption came true in exothermically and spontaneously with both Pb(II) and Cd(II). As-fabricated starch based magnetic nanocomposite displays excellent adsorption as well as outstanding reusability. Therefore, these outcomes support that the [email protected]3O4 nanocomposite can be used as a promising adsorbent for industrial application.

ACS Style

Tansir Ahamad; Mu. Naushad; Rashed Hassan Mousa; Saad M. Alshehri. Fabrication of starch-salicylaldehyde based polymer nanocomposite (PNC) for the removal of pollutants from contaminated water. International Journal of Biological Macromolecules 2020, 165, 2731 -2738.

AMA Style

Tansir Ahamad, Mu. Naushad, Rashed Hassan Mousa, Saad M. Alshehri. Fabrication of starch-salicylaldehyde based polymer nanocomposite (PNC) for the removal of pollutants from contaminated water. International Journal of Biological Macromolecules. 2020; 165 (Pt B):2731-2738.

Chicago/Turabian Style

Tansir Ahamad; Mu. Naushad; Rashed Hassan Mousa; Saad M. Alshehri. 2020. "Fabrication of starch-salicylaldehyde based polymer nanocomposite (PNC) for the removal of pollutants from contaminated water." International Journal of Biological Macromolecules 165, no. Pt B: 2731-2738.

Original paper
Published: 22 October 2020 in Topics in Catalysis
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In the present study, Ag2O–Al2O3–ZrO2 based trimetallic oxide nanocatalyst was designed using simple microwave assisted reduction method. It was characterized using various techniques such as Fourier transform-infrared (FT-IR), X-ray diffractometer (XRD), electron microscopy [scanning electron microscope (SEM), transmission electron microscope (TEM)] and X-ray photoelectron spectroscope (XPS). It was utilized for the degradation of nicosulfuron herbicide and the influence of microwave (MW) and UV radiations on the degradation rate was also studied. Maximum of 78% degradation was obtained within 50 min. Scavenging studies showed the major involvement of ·OH and ·O2− radicals in the degradation process. Possible heterostructures (traditional and Z-scheme) with their possible charge transfer were also studied. Nyquist plots and photoluminescence (PL) analysis showed the high charge transfer and lowered recombination in Ag2O–Al2O3–ZrO2. Possible degradation mechanism was also developed using LC–MS. Reusability studies were carried out for consecutive 5 cycles and results indicated the appreciable photocatalytic ability after every repeated cycles. Traditional and Z-scheme heterostructure for Ag2O–Al2O3–ZrO2 trimetallic nanocatalyst

ACS Style

Sangeeta Bhogal; Gaurav Sharma; Amit Kumar; Shweta Sharma; Mu. Naushad; Manawwer Alam; Florian J. Stadler. Ag2O–Al2O3–ZrO2 Trimetallic Nanocatalyst for High Performance Photodegradation of Nicosulfuron Herbicide. Topics in Catalysis 2020, 63, 1272 -1285.

AMA Style

Sangeeta Bhogal, Gaurav Sharma, Amit Kumar, Shweta Sharma, Mu. Naushad, Manawwer Alam, Florian J. Stadler. Ag2O–Al2O3–ZrO2 Trimetallic Nanocatalyst for High Performance Photodegradation of Nicosulfuron Herbicide. Topics in Catalysis. 2020; 63 (11):1272-1285.

Chicago/Turabian Style

Sangeeta Bhogal; Gaurav Sharma; Amit Kumar; Shweta Sharma; Mu. Naushad; Manawwer Alam; Florian J. Stadler. 2020. "Ag2O–Al2O3–ZrO2 Trimetallic Nanocatalyst for High Performance Photodegradation of Nicosulfuron Herbicide." Topics in Catalysis 63, no. 11: 1272-1285.