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The widespread environmental contamination of chlorpyrifos (CP) has raised human health concerns and necessitated cost-effective methods for its remediation. The current study evaluated the degradation behavior of CP in compost and biochar amended and unamended (original and sterilized) soils in an incubation trial. Two levels of CP (100 and 200 mg kg-1), compost and biochar (0.50%) were applied, and soil was collected at different time intervals. At the higher CP level (200 mg kg-1), CP a showed lower degradation rate (ƙ = 0.0102 mg kg-1 d-1) compared with a low CP level (ƙ = 0.0173 mg kg-1 d-1). The half-lives of CP were 40 and 68 days for CP at 100 and 200 mg kg-1 in original soil, respectively, and increased to 94 and 141 days in sterilized soils. CP degradation was accelerated in compost amended soils, while suppressed in biochar amended soils. Lower half lives of 20 and 37 days were observed with compost application at CP 100 and 200 mg kg-1 doses, respectively. The activities of soil enzymes were considerably affected by the CP contamination and significantly recovered in compost and biochar amended soils. In conclusion, the application of organic amendments especially compost is an important strategy for the remediation of CP contaminated soil.
Humera Aziz; Xiukang Wang; Ghulam Murtaza; Ambreen Ashar; Sarfraz Hussain; Muhammad Abid; Behzad Murtaza; Muhammad Hamzah Saleem; Sajid Fiaz; Shafaqat Ali. Evaluation of Compost and Biochar to Mitigate Chlorpyrifos Pollution in Soil and Their Effect on Soil Enzyme Dynamics. Sustainability 2021, 13, 9695 .
AMA StyleHumera Aziz, Xiukang Wang, Ghulam Murtaza, Ambreen Ashar, Sarfraz Hussain, Muhammad Abid, Behzad Murtaza, Muhammad Hamzah Saleem, Sajid Fiaz, Shafaqat Ali. Evaluation of Compost and Biochar to Mitigate Chlorpyrifos Pollution in Soil and Their Effect on Soil Enzyme Dynamics. Sustainability. 2021; 13 (17):9695.
Chicago/Turabian StyleHumera Aziz; Xiukang Wang; Ghulam Murtaza; Ambreen Ashar; Sarfraz Hussain; Muhammad Abid; Behzad Murtaza; Muhammad Hamzah Saleem; Sajid Fiaz; Shafaqat Ali. 2021. "Evaluation of Compost and Biochar to Mitigate Chlorpyrifos Pollution in Soil and Their Effect on Soil Enzyme Dynamics." Sustainability 13, no. 17: 9695.
The Mimosa genus belongs to the Fabaceae family of legumes and consists of about 400 species distributed all over the world. The growth forms of plants belonging to the Mimosa genus range from herbs to trees. Several species of this genus play important roles in folk medicine. In this review, we aimed to present the current knowledge of the ethnogeographical distribution, ethnotraditional uses, nutritional values, pharmaceutical potential, and toxicity of the genus Mimosa to facilitate the exploitation of its therapeutic potential for the treatment of human ailments. The present paper consists of a systematic overview of the scientific literature relating to the genus Mimosa published between 1931 and 2020, which was achieved by consulting various databases (Science Direct, Francis and Taylor, Scopus, Google Scholar, PubMed, SciELO, Web of Science, SciFinder, Wiley, Springer, Google, The Plant Database). More than 160 research articles were included in this review regarding the Mimosa genus. Mimosa species are nutritionally very important and several species are used as feed for different varieties of chickens. Studies regarding their biological potential have shown that species of the Mimosa genus have promising pharmacological properties, including antimicrobial, antioxidant, anticancer, antidiabetic, wound-healing, hypolipidemic, anti-inflammatory, hepatoprotective, antinociceptive, antiepileptic, neuropharmacological, toxicological, antiallergic, antihyperurisemic, larvicidal, antiparasitic, molluscicidal, antimutagenic, genotoxic, teratogenic, antispasmolytic, antiviral, and antivenom activities. The findings regarding the genus Mimosa suggest that this genus could be the future of the medicinal industry for the treatment of various diseases, although in the future more research should be carried out to explore its ethnopharmacological, toxicological, and nutritional attributes.
Ismat Majeed; Komal Rizwan; Ambreen Ashar; Tahir Rasheed; Ryszard Amarowicz; Humaira Kausar; Muhammad Zia-Ul-Haq; Luigi Marceanu. A Comprehensive Review of the Ethnotraditional Uses and Biological and Pharmacological Potential of the Genus Mimosa. International Journal of Molecular Sciences 2021, 22, 7463 .
AMA StyleIsmat Majeed, Komal Rizwan, Ambreen Ashar, Tahir Rasheed, Ryszard Amarowicz, Humaira Kausar, Muhammad Zia-Ul-Haq, Luigi Marceanu. A Comprehensive Review of the Ethnotraditional Uses and Biological and Pharmacological Potential of the Genus Mimosa. International Journal of Molecular Sciences. 2021; 22 (14):7463.
Chicago/Turabian StyleIsmat Majeed; Komal Rizwan; Ambreen Ashar; Tahir Rasheed; Ryszard Amarowicz; Humaira Kausar; Muhammad Zia-Ul-Haq; Luigi Marceanu. 2021. "A Comprehensive Review of the Ethnotraditional Uses and Biological and Pharmacological Potential of the Genus Mimosa." International Journal of Molecular Sciences 22, no. 14: 7463.
Fatty acid methyl ester (FAME) was produced from waste cooking oil (WCO) utilizing eggshells derived solid base catalyst. Eggshells derived multi modal CaO (MM-CaO) also provides a cost-effective way for the preparation of green fuel. The nano-scaled MM-CaO was prepared using ball milling followed by calcination at 800 °C for 2 h form eggshells powder. The characterization of calcined powder was executed by XRD, EDX, SEM and FTIR techniques. Diffractogram of MM-CaO showed cubic crystal structure and presence of calcium, carbon and oxygen was confirmed by EDX. The morphology of MM-CaO was revealed by SEM having bandgap energy (3.02 eV) which declared MM-CaO as photoactive in solar range. Catalytic transesterification process furnished 75.2% yield, whereas in photocatalytic process, 86.8% yield was obtained at optimum conditions (temperature 50 °C, reaction time 180 min and 1.5 g catalyst dose). The FAME formation was monitored by GC and FTIR analysis. Physiochemical properties of produced biodiesel were also determined and equated with standards. Results depicted that MM-CaO is highly efficient for conversion of WCO to biodiesel.
F. Nadeem; I.A. Bhatti; A. Ashar; M. Yousaf; M. Iqbal; M. Mohsin; J. Nisar; N. Tamam; N. Alwadai. Eco-benign biodiesel production from waste cooking oil using eggshell derived MM-CaO catalyst and condition optimization using RSM approach. Arabian Journal of Chemistry 2021, 14, 103263 .
AMA StyleF. Nadeem, I.A. Bhatti, A. Ashar, M. Yousaf, M. Iqbal, M. Mohsin, J. Nisar, N. Tamam, N. Alwadai. Eco-benign biodiesel production from waste cooking oil using eggshell derived MM-CaO catalyst and condition optimization using RSM approach. Arabian Journal of Chemistry. 2021; 14 (8):103263.
Chicago/Turabian StyleF. Nadeem; I.A. Bhatti; A. Ashar; M. Yousaf; M. Iqbal; M. Mohsin; J. Nisar; N. Tamam; N. Alwadai. 2021. "Eco-benign biodiesel production from waste cooking oil using eggshell derived MM-CaO catalyst and condition optimization using RSM approach." Arabian Journal of Chemistry 14, no. 8: 103263.
The effect of mixed-micellization of anionic/non-ionic surfactants on the solubilization of a cationic dye (Methylene blue) is presented in this manuscript. Interactions of dye with the single anionic surfactant sodium dodecyl sulfate (SDS), and its mixture with the non-ionic surfactant (Triton X-100), were investigated. The non-ionic surfactant was initially screened, and then its concentration was kept constant at its critical micellar concentration. The critical micellar concentration, entropy, enthalpy, and free energy of micelle formation (ΔGmic°) were determined by electrical conductivity measurements. The solubilization parameters in terms of the partition coefficient (Kx) and binding constant (Kbind) were assessed by UV–Visible spectroscopy. The role of non-ionic surfactants on the electrostatic interactions of cationic dye and surfactant was also elaborated. Mixed micellization significantly enhanced the solubility of dye molecules as shown by conductivity and absorbance analysis. The disruption of structured water in the vicinal environment of hydrophobic groups of surfactants was responsible for the increase in critical micelle concentration (CMC). The negative values of energies of binding, partitioning, and micellization indicated the spontaneity and feasibility of micellar systems. The experimental outcomes supported the superiority of anionic/non-ionic mixed micellar solubilization over a single anionic surfactant. Thus, the mixed micellar system (SDS + TX-100) assured a higher degree of solubilization than the corresponding single system (SDS).
Sadia Noor; Muhammad Babar Taj; Ambreen Ashar. Solubilization of cationic dye in single and mixed micellar media. Journal of Molecular Liquids 2021, 330, 115613 .
AMA StyleSadia Noor, Muhammad Babar Taj, Ambreen Ashar. Solubilization of cationic dye in single and mixed micellar media. Journal of Molecular Liquids. 2021; 330 ():115613.
Chicago/Turabian StyleSadia Noor; Muhammad Babar Taj; Ambreen Ashar. 2021. "Solubilization of cationic dye in single and mixed micellar media." Journal of Molecular Liquids 330, no. : 115613.
Recently, natural dyes are used because these are environment-friendly, less lethal, and do not have any detrimental effect on health. For the present study, the cotton fabric and the mixed powder (pomegranate rind and turmeric rhizome) have been irradiated for (1–5) min. It has been found that 3 min is the effective exposure time for improvement in dyeing behavior of cellulosic fabric. Good color strength was observed by dyeing fabric irradiated at 65°C for 40 min in dyeing bath having pH 6. For improvements in color fastness, the optimum concentration of pre-mordant (4% copper) and post-mordant (8% chrome) was employed. It is observed that microwaves increased the color strength as well as color fastness properties of irradiated cotton using aqueous solubilized mixed extract of irradiated pomegranate rind and turmeric rhizome powder.
Rizwana Naveed; Ijaz Ahmad Bhatti; Shahid Adeel; Ambreen Ashar; Isra Sohail; Masood Ul Haq Khan; Nasir Masood; Munawar Iqbal; Arif Nazir. Microwave-Assisted Extraction and Dyeing of Cotton Fabric with Mixed Natural Dye from Pomegranate Rind (Punica Granatum L.) and Turmeric Rhizome (Curcuma Longa L.). Journal of Natural Fibers 2020, 1 -8.
AMA StyleRizwana Naveed, Ijaz Ahmad Bhatti, Shahid Adeel, Ambreen Ashar, Isra Sohail, Masood Ul Haq Khan, Nasir Masood, Munawar Iqbal, Arif Nazir. Microwave-Assisted Extraction and Dyeing of Cotton Fabric with Mixed Natural Dye from Pomegranate Rind (Punica Granatum L.) and Turmeric Rhizome (Curcuma Longa L.). Journal of Natural Fibers. 2020; ():1-8.
Chicago/Turabian StyleRizwana Naveed; Ijaz Ahmad Bhatti; Shahid Adeel; Ambreen Ashar; Isra Sohail; Masood Ul Haq Khan; Nasir Masood; Munawar Iqbal; Arif Nazir. 2020. "Microwave-Assisted Extraction and Dyeing of Cotton Fabric with Mixed Natural Dye from Pomegranate Rind (Punica Granatum L.) and Turmeric Rhizome (Curcuma Longa L.)." Journal of Natural Fibers , no. : 1-8.
Iron doped zinc oxide (Fe/ZnO) deposited on ceramic material by SILAR method was investigated. Fabricated material was characterized by Scanning Electron Microscopy (SEM), Energy Dispersive X-rays (EDX), X-ray diffraction (XRD) and UV–vis spectroscopy. It was found that the fabricated material was of hexagonal shape having 39.76 nm crystallite size with flower like morphology. Degradation of reactive black 5 (RB5) dye was examined using prepared material. The operational reaction parameters such as pH, sunlight irradiation time, oxidant concentration and concentration of RB5 dye were optimized using response surface methodology (RSM) and >90% degradation was achieved at optimum conditions such as pH 7, sunlight irradiation time 3 h, oxidant concentration 30 ppm and RB5 dye concentration 30 ppm. The recycling study of fabricated material was performed under optimized conditions and Fe/ZnO deposited on ceramic showed promising reusability and after fifteen runs, 50% performance was retained, which revealed the economical application Fe/ZnO deposited on ceramic for wastewater treatment.
Muhammad Mohsina; Ijaz Ahmad Bhatti; Ambreen Ashar; Asif Mahmoodc; Maryama; Qamar Ul Hassan; Munawar Iqbald. Fe/[email protected] fabrication for the enhanced photocatalytic performance under solar light irradiation for dye degradation. Journal of Materials Research and Technology 2020, 9, 4218 -4229.
AMA StyleMuhammad Mohsina, Ijaz Ahmad Bhatti, Ambreen Ashar, Asif Mahmoodc, Maryama, Qamar Ul Hassan, Munawar Iqbald. Fe/[email protected] fabrication for the enhanced photocatalytic performance under solar light irradiation for dye degradation. Journal of Materials Research and Technology. 2020; 9 (3):4218-4229.
Chicago/Turabian StyleMuhammad Mohsina; Ijaz Ahmad Bhatti; Ambreen Ashar; Asif Mahmoodc; Maryama; Qamar Ul Hassan; Munawar Iqbald. 2020. "Fe/[email protected] fabrication for the enhanced photocatalytic performance under solar light irradiation for dye degradation." Journal of Materials Research and Technology 9, no. 3: 4218-4229.
Iron molybdate was prepared via simple solution chemistry method and the photocatalytic degradation of a pesticide (endosulfan) was investigated under visible light irradiation. As-prepared (Fe2(MoO4)3) was characterized using scanning electron microscope (SEM), x-ray diffraction (XRD), energy dispersive x-ray spectra (EDX), diffused reflectance spectroscopy (DRS) and Zeta particle sizer techniques. The iron molybdate crystallite size was 36 nm, while grain size was in the range of 160–340 nm. The particles of polymetallic compound were spherical, highly porous and with fluffy texture indicating high surface area. DRS revealed Fe2(MoO4)3 was active under visible region since band gap value calculated was 2.7 eV. Response surface methodology (RSM) was employed for the optimization of photocatalytic activity (PCA) of Fe2(MoO4)3 as a function of catalyst dose, H2O2 dose, solution pH and concentration of endosulfan and up to 77% degradation was achieved at optimum conditions, which was monitored by UV/vis spectroscopy. In response to endosulfan degradation, the chemical oxygen demand (COD) and total organic carbon (TOC) were reduced up to 76% and 67%, respectively. Results revealed that iron molybdate is highly efficient photocatalyst for the degradation of endosulfan under solar light irradiation and could possibly be used for the treatment of endosulfan containing wastewater.
Shagufta Parveen; Ijaz Bhatti; Ambreen Ashar; Tariq Javed; Muhammad Mohsin; Muhammad T Hussain; M I Khan; Saima Naz; Munawar Iqbal. Synthesis, characterization and photocatalytic performance of iron molybdate (Fe2(MoO4)3) for the degradation of endosulfan pesticide. Materials Research Express 2020, 7, 035016 .
AMA StyleShagufta Parveen, Ijaz Bhatti, Ambreen Ashar, Tariq Javed, Muhammad Mohsin, Muhammad T Hussain, M I Khan, Saima Naz, Munawar Iqbal. Synthesis, characterization and photocatalytic performance of iron molybdate (Fe2(MoO4)3) for the degradation of endosulfan pesticide. Materials Research Express. 2020; 7 (3):035016.
Chicago/Turabian StyleShagufta Parveen; Ijaz Bhatti; Ambreen Ashar; Tariq Javed; Muhammad Mohsin; Muhammad T Hussain; M I Khan; Saima Naz; Munawar Iqbal. 2020. "Synthesis, characterization and photocatalytic performance of iron molybdate (Fe2(MoO4)3) for the degradation of endosulfan pesticide." Materials Research Express 7, no. 3: 035016.
Zinc oxide nanoparticles were immobilized on polyurethane foam (PUF) and employed for the degradation of Acid black 1 dye (AB1). The ZnO/PUF was characterized by XRD, SEM and EDX techniques. Process variables i.e., dye concentration, pH, concentration of H2O2, irradiation time were optimized for maximum degradation of dye. ZnO/PUF showed promising efficiency for the degradation of AB1 dye and up to 86% and 65% dye degradation was achieved under UV and solar light irradiation at neutral pH, 4% H2O2, 240 min/sunlight and 75 min/UV irradiation time using 40 mg/L dye initial concentration. The optimum conditions were applied for the treatment of textile wastewater and biological oxygen demand (BOD) and total organic carbon (TOC) were reduced up to 70% and 80%, respectively. In view of promising PCA, ZnO/PUF could possibly be used for the treatment of wastewater contains dyes.
Anam Inderyas; Ijaz Bhatti; Ambreen Ashar; Munir Ashraf; Ambreen Ghani; Maryam Yousaf; Muhammad Mohsin; Dr. Muhammad Ahmad; Sidra Rafique; Nasir Masood; Munawar Iqbal. Synthesis of immobilized ZnO over polyurethane and photocatalytic activity evaluation for the degradation of azo dye under UV and solar light irardiation. Materials Research Express 2020, 7, 025033 .
AMA StyleAnam Inderyas, Ijaz Bhatti, Ambreen Ashar, Munir Ashraf, Ambreen Ghani, Maryam Yousaf, Muhammad Mohsin, Dr. Muhammad Ahmad, Sidra Rafique, Nasir Masood, Munawar Iqbal. Synthesis of immobilized ZnO over polyurethane and photocatalytic activity evaluation for the degradation of azo dye under UV and solar light irardiation. Materials Research Express. 2020; 7 (2):025033.
Chicago/Turabian StyleAnam Inderyas; Ijaz Bhatti; Ambreen Ashar; Munir Ashraf; Ambreen Ghani; Maryam Yousaf; Muhammad Mohsin; Dr. Muhammad Ahmad; Sidra Rafique; Nasir Masood; Munawar Iqbal. 2020. "Synthesis of immobilized ZnO over polyurethane and photocatalytic activity evaluation for the degradation of azo dye under UV and solar light irardiation." Materials Research Express 7, no. 2: 025033.
Graphene oxide (GO) supported iron molybdate (Fe2(MoO4)3) was prepared via hydrothermal route, which were characterized by X-rays diffraction technique (XRD), scanning electron microscopy (SEM), Energy-Dispersive X-Ray (EDX), zeta sizer, UV–visible and atomic force microscopy (AFM) techniques. Photocatalytic activity (PCA) was evaluated by degrading the diclofenac sodium (DS) under solar light irradiation. Central composite design (CCD) was employed under response surface methodology (RSM) for the optimization of process variables such as pH, H2O2, DS concentration and catalyst load for maximum drug degradation. At optimum conditions, up to 96% DS degradation was achieved (2 h irradiation, 6% H2O2 concentration, 10 mg/L DS concentration, 0.45 g/L catalyst dose and 4.5 pH). The statistical analysis revealed the adequacy of developed model for the degradation of DS drug. The actual and predicted degradation values correlated well with each other with very low residual value. The model fitness was based on insignificant “lack of fit test” and higher value R2. Results revealed that the hydrothermal route is an efficient route for the fabrication of GO/Fe2(MoO4)3 round-ball microstructures, which showed promising PCA and it could possibly be used for the degradation of DS drug in wastewater.
M.Z. Ahmad; I.A. Bhatti; K. Qureshi; N. Ahmad; J. Nisar; M. Zuber; Ambreen Ashar; M.I. Khan; M. Iqbal. Graphene oxide supported Fe2(MoO4)3 nano rods assembled round-ball fabrication via hydrothermal route and photocatalytic degradation of nonsteroidal anti-inflammatory drug. Journal of Molecular Liquids 2019, 301, 112343 .
AMA StyleM.Z. Ahmad, I.A. Bhatti, K. Qureshi, N. Ahmad, J. Nisar, M. Zuber, Ambreen Ashar, M.I. Khan, M. Iqbal. Graphene oxide supported Fe2(MoO4)3 nano rods assembled round-ball fabrication via hydrothermal route and photocatalytic degradation of nonsteroidal anti-inflammatory drug. Journal of Molecular Liquids. 2019; 301 ():112343.
Chicago/Turabian StyleM.Z. Ahmad; I.A. Bhatti; K. Qureshi; N. Ahmad; J. Nisar; M. Zuber; Ambreen Ashar; M.I. Khan; M. Iqbal. 2019. "Graphene oxide supported Fe2(MoO4)3 nano rods assembled round-ball fabrication via hydrothermal route and photocatalytic degradation of nonsteroidal anti-inflammatory drug." Journal of Molecular Liquids 301, no. : 112343.
Nickel is a toxic metal and present in the effluents of electroplating industries. Conventional methods to remove nickel are expensive and ineffective. Heavy metals can be easily adsorbed by dendrimers. Dendrimers are radially symmetric, nano-sized molecules with homogeneous, mono-dispersed and well-defined structures consisting of the tree-like branches, characterized by terminal poly functionality. The present study was focused on the synthesis of PAMAM dendrimers by divergent method and their use for the removal of nickel from aqueous solution. Characterization of synthesized dendrimers were carried out by Scanning Electron Microscopy (SEM), Fourier Transform Infrared Spectroscopy (FTIR), UV-visible spectroscopy and zeta sizer analysis. Different parameters such as contact time, concentration of dendrimers, pH and metal concentration have been optimized. Therefore, equilibrium isotherms and adsorption kinetics were determined. Estimation of extent of metal removal was carried out by Atomic Absorption Spectroscopy. Results have revealed that PAMAM dendrimers could possibly be used for the removal of nickel from industrial effluents.
Isra Sohail; Ijaz Ahmad Bhatti; Ambreen Ashar; Fazli Malik Sarim; Muhammad Mohsin; Rizwana Naveed; Muhammad Yasir; Munawar Iqbal; Arif Nazir. Polyamidoamine (PAMAM) dendrimers synthesis, characterization and adsorptive removal of nickel ions from aqueous solution. Journal of Materials Research and Technology 2019, 9, 498 -506.
AMA StyleIsra Sohail, Ijaz Ahmad Bhatti, Ambreen Ashar, Fazli Malik Sarim, Muhammad Mohsin, Rizwana Naveed, Muhammad Yasir, Munawar Iqbal, Arif Nazir. Polyamidoamine (PAMAM) dendrimers synthesis, characterization and adsorptive removal of nickel ions from aqueous solution. Journal of Materials Research and Technology. 2019; 9 (1):498-506.
Chicago/Turabian StyleIsra Sohail; Ijaz Ahmad Bhatti; Ambreen Ashar; Fazli Malik Sarim; Muhammad Mohsin; Rizwana Naveed; Muhammad Yasir; Munawar Iqbal; Arif Nazir. 2019. "Polyamidoamine (PAMAM) dendrimers synthesis, characterization and adsorptive removal of nickel ions from aqueous solution." Journal of Materials Research and Technology 9, no. 1: 498-506.
Heterogeneous photocatalysis, employing semiconductor metal oxides, especially at nano scale is a promising technique to mortify the dye residues from effluent. The photocatalysts on doping with a suitable dopant can be modified to enhance the photocatalytic activity. In this study, undoped and series of Fe3+ doped ZnO have been grown on polyester fabric through low temperature hydrothermal method to generate photocatalytic membrane reactors (PMRs). The material grown on the surface of fabric was characterized by XRD, EDX, SEM, TEM, STEM, AFM, XPS, ICP-MS, DRS and PL studies. For ZnO/PMR and [email protected]/PMR photocatalytic activity was determined and examined to increase for [email protected]/PMR in the solar region due to the reduction of band gap from 3.2 to 2.6 eV on Fe3+doping. The surface properties of PMRs were also determined by zeta potential and contact angle. The characterized ZnO and [email protected] nano discs based PMRs have been used to degrade RB5 reactive dye on irradiating with artificial sunlight (D65, 72 W). The reaction parameters i.e. initial dye and oxidant concentration, pH and irradiation time have been optimized by Response Surface Methodology (RSM). The extent of dye degradation has been evaluated by UV/vis spectroscopy and FTIR. The maximum degradation achieved was 88.89% for ZnO/PMR and 98.34% for [email protected] PMR in 180 min. The photocatalytic efficiency of [email protected] PMR was investigated for 15 batches, with a slight gradual decrease in activity after eight batches.
Ambreen Ashar; Ijaz Ahmad Bhatti; Munir Ashraf; Asif Tahir; Humera Aziz; Maryam Yousuf; Dr. Muhammad Ahmad; Muhammad Mohsin; Zeeshan Ahmad Bhutta. Fe3+ @ ZnO/polyester based solar photocatalytic membrane reactor for abatement of RB5 dye. Journal of Cleaner Production 2019, 246, 119010 .
AMA StyleAmbreen Ashar, Ijaz Ahmad Bhatti, Munir Ashraf, Asif Tahir, Humera Aziz, Maryam Yousuf, Dr. Muhammad Ahmad, Muhammad Mohsin, Zeeshan Ahmad Bhutta. Fe3+ @ ZnO/polyester based solar photocatalytic membrane reactor for abatement of RB5 dye. Journal of Cleaner Production. 2019; 246 ():119010.
Chicago/Turabian StyleAmbreen Ashar; Ijaz Ahmad Bhatti; Munir Ashraf; Asif Tahir; Humera Aziz; Maryam Yousuf; Dr. Muhammad Ahmad; Muhammad Mohsin; Zeeshan Ahmad Bhutta. 2019. "Fe3+ @ ZnO/polyester based solar photocatalytic membrane reactor for abatement of RB5 dye." Journal of Cleaner Production 246, no. : 119010.
Zinc oxide nanoparticles (ZnONPs) are being used extensively in manufacturing skin lotions and food products and in various biological and pharmaceutical industries because of their immunomodulatory and antimicrobial properties. In this study, ZnONPs were synthesized by a precipitation method and characterized by X-ray diffraction (XRD) techniques, scanning electron microscopy (SEM), and ultraviolet–visible spectroscopy to investigate their structural, morphological, and optical properties. For in vivo evaluation, 40 healthy albino mice were randomly allocated to four equal groups among which the first one was the control group, while the second, third, and fourth were treated with carbon tetrachloride (CCl4), a blend of CCl4 and ZnONPs, and ZnONPs alone, respectively, for 21 days. The XRD analysis confirmed hexagonal wurtzite type structures having an average crystallite size of 41.54 nm. The morphology of ZnONPs analyzed through SEM showed uniform distribution of the grains and shape of the synthesized oxide. The energy band gap of the ZnONPs was found to be 3.498 eV. Hepatic and renal damage following CCl4 administration was apparent after 14 days and was increased at the 21st day, showing nodular fibrotic masses in the liver and bumpy surfaces in the kidney as observed by gross and histological examination. Coadministration of ZnONPs (15 mg/kg b.w. intragastrically 5 days a week) significantly prevented the CCl4-dependent increases in alanine transaminase, aspartate transaminase, creatinine, and urea levels, suggesting a protective potential of ZnONPs.
Zulfia Hussain; Junaid Ali Khan; Hafeez Anwar; Naila Andleeb; Sehrish Murtaza; Ambreen Ashar; Iram Arif. Synthesis, characterization, and pharmacological evaluation of zinc oxide nanoparticles formulation. Toxicology and Industrial Health 2018, 34, 753 -763.
AMA StyleZulfia Hussain, Junaid Ali Khan, Hafeez Anwar, Naila Andleeb, Sehrish Murtaza, Ambreen Ashar, Iram Arif. Synthesis, characterization, and pharmacological evaluation of zinc oxide nanoparticles formulation. Toxicology and Industrial Health. 2018; 34 (11):753-763.
Chicago/Turabian StyleZulfia Hussain; Junaid Ali Khan; Hafeez Anwar; Naila Andleeb; Sehrish Murtaza; Ambreen Ashar; Iram Arif. 2018. "Synthesis, characterization, and pharmacological evaluation of zinc oxide nanoparticles formulation." Toxicology and Industrial Health 34, no. 11: 753-763.
The disposal of colored textile effluent into canals, rivers and sea has adverse effect on aquatic plants and animal life due to reduced penetration of sunlight into water. The aim of this study was to investigate the color removal of textile dyeing effluents with voltage-assisted photocatalytic activity of carbon fabrics containing ZnO nanorods. ZnO nanorods were grown on the oxidized carbon fabric samples by seeding technique using zinc acetate dihydrate and NaOH, followed by hydrothermal process using zinc nitrate hexahydrate (Zn(NO3)2·6H2O) and hexamethylenetetramine (C6H12N4). The surface morphology of functionalized carbon fabric was characterized using scanning electron microscope, transmission electron microscope and X-ray diffractometer. It was found that the degradation of dyes in aqueous solutions, with voltage-assisted photocatalytic activity of ZnO nanorods on carbon fabrics, follows Langmuir-Hinshelwood kinetics. The study concludes that increase in the applied voltage significantly increases the rate of degradation of dyes by enhancing the photocatalytic activity of carbon fabrics containing ZnO nanorods.
Zahid Sarwar; Munir Ashraf; Abdur Rehman; Humera Aziz; Amjed Javid; Nadeem Nasir; Kashif Iqbal; Tanveer Hussain; Ambreen Ashar. Voltage-assisted photocatalytic activity of ZnO nanorods grown on carbon fabric for effluent treatment. Journal of Cleaner Production 2018, 201, 909 -915.
AMA StyleZahid Sarwar, Munir Ashraf, Abdur Rehman, Humera Aziz, Amjed Javid, Nadeem Nasir, Kashif Iqbal, Tanveer Hussain, Ambreen Ashar. Voltage-assisted photocatalytic activity of ZnO nanorods grown on carbon fabric for effluent treatment. Journal of Cleaner Production. 2018; 201 ():909-915.
Chicago/Turabian StyleZahid Sarwar; Munir Ashraf; Abdur Rehman; Humera Aziz; Amjed Javid; Nadeem Nasir; Kashif Iqbal; Tanveer Hussain; Ambreen Ashar. 2018. "Voltage-assisted photocatalytic activity of ZnO nanorods grown on carbon fabric for effluent treatment." Journal of Cleaner Production 201, no. : 909-915.
The antibacterial activity of green synthesized calcium oxide nanoparticles was investigated using leaf extract of Mentha piperita in this study. The synthesized nanomaterial was subjected to characterization using scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), and energy dispersive x-ray spectroscopy (EDX). The SEM images showed agglomeration of disc shaped nanoparticles, and FTIR and EDX spectroscopy indicated intensive peaks for calcium ions and oxygen. Subsequently, the potential of nanoscale CaO was also evaluated for antimicrobial index against E. coli using the well diffusion method. A maximum zone of inhibition up to 42 mm was observed when 100 µg ml−1 material was loaded with inoculum size 50 µl of E. coli in sunlight exposure of 5 h. The experimental conditions were optimized using a central composite design using a response surface methodology. The maximum antimicrobial index of the CaO nanoparticle was 6 mm as a result of the optimized response. Furthermore, the minimum inhibitory concentration of the CaO nanoparticle showed 25 µg ml−1, an effective initial concentration for E.coli removal. The results revealed that the CaO nanocomposite synthesized via a green route was a promising candidate for the removal of E. coli present in drinking water, which is an important fecal indicator.
Umber Ijaz; Ijaz Ahmed Bhatti; Saima Mirza; Ambreen Ashar. Characterization and evaluation of antibacterial activity of plant mediated calcium oxide (CaO) nanoparticles by employing Mentha pipertia extract. Materials Research Express 2017, 4, 105402 .
AMA StyleUmber Ijaz, Ijaz Ahmed Bhatti, Saima Mirza, Ambreen Ashar. Characterization and evaluation of antibacterial activity of plant mediated calcium oxide (CaO) nanoparticles by employing Mentha pipertia extract. Materials Research Express. 2017; 4 (10):105402.
Chicago/Turabian StyleUmber Ijaz; Ijaz Ahmed Bhatti; Saima Mirza; Ambreen Ashar. 2017. "Characterization and evaluation of antibacterial activity of plant mediated calcium oxide (CaO) nanoparticles by employing Mentha pipertia extract." Materials Research Express 4, no. 10: 105402.
ZnO particles (flower and pseudo sphere) were synthesized via precipitation route and characterized using X-ray diffraction (XRD), Scanning electron microscopy (SEM), Energy dispersive X-ray analysis (EDX), Fourier transform infra-red (FTIR) spectroscopy, Atomic force microscopy (AFM), Particle size analyzer and UV–visible techniques. The photocatalytic activities (PCA) of ZnO flower (uncalcined) and pseudo-sphere (calcined) were evaluated by degrading nonylphenol ethoxylate-9 (NP9EO) under UV and solar irradiation. The process variables i.e., catalyst dose, calcination temperature, H2O2 concentration, pH and UV/solar light exposure were investigated and under optimum conditions of process variables, paper, textile and leather industries effluents were also treated. Calcination at high temperature affected the morphology of ZnO particles. Both ZnO flower and pseudo-sphere degraded NP9EO and pollutants in industrial wastewater efficiently under both UV and solar irradiation. Maximum NP9EO degradation was achieved at 2.5 g/L catalyst dose, high calcination temperature, 4% H2O2 concentration, 6 pH, 110 UV exposure and 12 h solar light exposure. Results reveal that ZnO is efficient photo-catalyst and could be used under solar irradiation for photocatalytic application by tuning the band gap.
Ambreen Ashar; Munawar Iqbal; Ijaz Ahmad Bhatti; Muhammad Zubair Ahmad; Khizar Qureshi; Jan Nisar; Iftikhar Hussain Bukhari. Synthesis, characterization and photocatalytic activity of ZnO flower and pseudo-sphere: Nonylphenol ethoxylate degradation under UV and solar irradiation. Journal of Alloys and Compounds 2016, 678, 126 -136.
AMA StyleAmbreen Ashar, Munawar Iqbal, Ijaz Ahmad Bhatti, Muhammad Zubair Ahmad, Khizar Qureshi, Jan Nisar, Iftikhar Hussain Bukhari. Synthesis, characterization and photocatalytic activity of ZnO flower and pseudo-sphere: Nonylphenol ethoxylate degradation under UV and solar irradiation. Journal of Alloys and Compounds. 2016; 678 ():126-136.
Chicago/Turabian StyleAmbreen Ashar; Munawar Iqbal; Ijaz Ahmad Bhatti; Muhammad Zubair Ahmad; Khizar Qureshi; Jan Nisar; Iftikhar Hussain Bukhari. 2016. "Synthesis, characterization and photocatalytic activity of ZnO flower and pseudo-sphere: Nonylphenol ethoxylate degradation under UV and solar irradiation." Journal of Alloys and Compounds 678, no. : 126-136.