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The requirement for enhanced, low-cost, and eco-friendly materials are highly favored for water treatment processes. Then, for extended application prospects, a simple and cost-effective method for composites preparation is mainly investigated. In the present work, a rapid and efficient modification of fly ash-based zeolite W (ZW) was achieved using a microwave-assisted process and then was applied to remove arsenate (As(V)) from water. The exchange equilibrium was reached after 1 min at 150 °C under microwave heating, where the iron and zirconium contents were 6.9 and 5.04 wt%, respectively. The modified zeolite (FeZrZW) demonstrated an excellent efficiency toward As(V) ions up to 99.87% across a broad pH, from acidic 2 to basic 10. A high adsorption capacity of As(V) was obtained (Qm = 42.31 mg g−1) than all natural or fly ash-based zeolites, much higher than some commercial and synthetic adsorbents. The high arsenate uptake performance of FeZrZW adsorbent could be related to the creation of active acid sites on ZW after its modification containing iron and zirconium oxides, which capture through the formation of Zr-O-As and Fe-O-As bridges. Monte Carlo simulation results confirmed the stronger and spontaneous adsorption onto FeZrZW and gave more insights into the interaction between arsenic species and the adsorbents. In addition, [email protected] composites were suggested as an alternative solution to the separation problem of arsenate in solution. They proved a remarkable efficiency up to 99.87% and an adsorption capacity of 29.38 mg g−1. Finally, FeZrZW combines various exciting properties to be applied in a full-scale process for arsenic recovery.
Youness Abdellaoui; Brahim El Ibrahimi; Hicham Abou Oualid; Zineb Kassab; Carlos Quintal-Franco; Germán Giácoman-Vallejos; Prócoro Gamero-Melo. Iron-zirconium microwave-assisted modification of small-pore zeolite W and its alginate composites for enhanced aqueous removal of As(V) ions: Experimental and theoretical studies. Chemical Engineering Journal 2021, 421, 129909 .
AMA StyleYouness Abdellaoui, Brahim El Ibrahimi, Hicham Abou Oualid, Zineb Kassab, Carlos Quintal-Franco, Germán Giácoman-Vallejos, Prócoro Gamero-Melo. Iron-zirconium microwave-assisted modification of small-pore zeolite W and its alginate composites for enhanced aqueous removal of As(V) ions: Experimental and theoretical studies. Chemical Engineering Journal. 2021; 421 ():129909.
Chicago/Turabian StyleYouness Abdellaoui; Brahim El Ibrahimi; Hicham Abou Oualid; Zineb Kassab; Carlos Quintal-Franco; Germán Giácoman-Vallejos; Prócoro Gamero-Melo. 2021. "Iron-zirconium microwave-assisted modification of small-pore zeolite W and its alginate composites for enhanced aqueous removal of As(V) ions: Experimental and theoretical studies." Chemical Engineering Journal 421, no. : 129909.
The current study reports the first use of Fe-ZSM-5 as a potential adsorbent for textile effluent purification. The Fe-ZSM-5 zeolite was synthesized through a hydrothermal method using tetrapropylammonium bromide as an organic structure-directing template for application as a binder for basic Fuchsin (BF) dye from aqueous media. SEM observations confirmed that Fe-ZSM-5 exhibits a granular shape with a quasi-hexagonal structure, which is in agreement with its crystallinity demonstrated by XRD analysis. FTIR analysis indicates the abundance of SiOH groups on the Fe-ZSM-5 surface. N2 adsorption-desorption measurement showed the microporous structure (pore size around 1.93 nm) of Fe-ZSM-5 with a BET surface area of 399 m2/g. The uptake performance of Fe-ZSM-5 zeolite for BF dye was systematically studied as a function of different operational parameters. The experimental adsorption data were in good agreement with pseudo-second-order kinetics and Langmuir isotherm with a maximum adsorbed amount of 251.87 mg/g. BF dye adsorption onto Fe-ZSM-5 was a spontaneous and endothermic phenomenon. The binding mechanism is attributed to electrostatic interactions combined with H-bonding. Further, the response surface modeling permits us to optimize BF dye adsorption process. The highest BF dye removal performance was found to be 99.6 % under optimum conditions of pH 5, Fe-ZSM-5 dose 0.75 g/L, initial BF concentration 10 mg/L for 120 min at 20 °C. The findings of this work revealed that Fe-ZSM-5 zeolite could be proposed as an alternative adsorbent with outstanding performance for BF dye removal from wastewaters.
Bouchra Ba Mohammed; Abdelghani Hsini; Youness Abdellaoui; Hicham Abou Oualid; Mohamed Laabd; Mahmoud El Ouardi; Abdelaziz Ait Addi; Khalid Yamni; Najib Tijani. Fe-ZSM-5 zeolite for efficient removal of basic Fuchsin dye from aqueous solutions: Synthesis, characterization and adsorption process optimization using BBD-RSM modeling. Journal of Environmental Chemical Engineering 2020, 8, 104419 .
AMA StyleBouchra Ba Mohammed, Abdelghani Hsini, Youness Abdellaoui, Hicham Abou Oualid, Mohamed Laabd, Mahmoud El Ouardi, Abdelaziz Ait Addi, Khalid Yamni, Najib Tijani. Fe-ZSM-5 zeolite for efficient removal of basic Fuchsin dye from aqueous solutions: Synthesis, characterization and adsorption process optimization using BBD-RSM modeling. Journal of Environmental Chemical Engineering. 2020; 8 (5):104419.
Chicago/Turabian StyleBouchra Ba Mohammed; Abdelghani Hsini; Youness Abdellaoui; Hicham Abou Oualid; Mohamed Laabd; Mahmoud El Ouardi; Abdelaziz Ait Addi; Khalid Yamni; Najib Tijani. 2020. "Fe-ZSM-5 zeolite for efficient removal of basic Fuchsin dye from aqueous solutions: Synthesis, characterization and adsorption process optimization using BBD-RSM modeling." Journal of Environmental Chemical Engineering 8, no. 5: 104419.
Biosorption using natural waste has emerged as a potential and promising strategy for removal of toxic dyes from wastewaters in comparison to conventional ones. Herein, the Codium decorticatum alga (CDA) was biologically identified and used as a biosorbent for anionic and cationic dyes from aqueous solutions. SEM analysis showed a rough surface with an irregular edge and shape while hydroxyl, amine, sulfur and carboxyl functional groups were identified using FTIR analysis. TGA/DTG confirmed the stability of CDA and the adsorption process. Batch studies were conducted to investigate the effect of operational factors such as initial pH, biosorbent dosage, temperature, initial concentration, and solid/liquid contact time on the biosorption of crystal violet (CV) and Congo red (CR) dyes. For both CV and CR dyes, the biosorption kinetics was accurately described by the pseudo-second-order model and the Langmuir isotherm was found to be best fitted for equilibrium data. Maximum uptake capacities have attained up to 278.46 mg/g for CV and 191.01 mg/g for CR. The CV and CR dye biosorption mechanism was ultimately manifested through the electrostatic interactions. The regeneration study showed that the CDA presents excellent reuse performance up to four consecutive cycles. The process optimization was performed using the response surface methodology based on Box–Behnken design (RSM-BDD). Accordingly, the optimum predicted removal efficiencies using RSM-BBD for CV and CR were obtained, respectively, at 96.9 and 89.8% using a CDA dose of 1.5 g/L, dye concentration of 20 mg/L, pH of 10 for CV, and pH of 4 for CR. Overall, CDA behaves as an efficient, recyclable, cheap, and eco-friendly adsorbent for cleaning-up of dyed effluents.
Hicham Abou Oualid; Youness Abdellaoui; Mohamed Laabd; Mahmoud El Ouardi; Younes Brahmi; Mohamed Iazza; Jaouad Abou Oualid. Eco-Efficient Green Seaweed Codium decorticatum Biosorbent for Textile Dyes: Characterization, Mechanism, Recyclability, and RSM Optimization. ACS Omega 2020, 5, 22192 -22207.
AMA StyleHicham Abou Oualid, Youness Abdellaoui, Mohamed Laabd, Mahmoud El Ouardi, Younes Brahmi, Mohamed Iazza, Jaouad Abou Oualid. Eco-Efficient Green Seaweed Codium decorticatum Biosorbent for Textile Dyes: Characterization, Mechanism, Recyclability, and RSM Optimization. ACS Omega. 2020; 5 (35):22192-22207.
Chicago/Turabian StyleHicham Abou Oualid; Youness Abdellaoui; Mohamed Laabd; Mahmoud El Ouardi; Younes Brahmi; Mohamed Iazza; Jaouad Abou Oualid. 2020. "Eco-Efficient Green Seaweed Codium decorticatum Biosorbent for Textile Dyes: Characterization, Mechanism, Recyclability, and RSM Optimization." ACS Omega 5, no. 35: 22192-22207.
Agro-industrial activities generate large quantities of lignocellulosic waste; however, their reuse is still rarely practiced. The use of these unexploited residues to develop high added value cellulosic materials is a crucial step towards sustainable development. This work evaluated pea and broad beans pods agro-industrial residue, for the first time, as promising sources of cellulose derivatives. Cellulose microfibers (CMF) and nanocrystals (CNC) were successfully extracted from pea pods (CMFP and CNCP) and broad beans pods (CMFB and CNCB) using chemical treatments (alkaline-extraction, bleaching, and acid hydrolysis). Pure CMFP and CMFB exhibited a diameter of 10.68 ± 1.28 µm and 14.67 ± 2.29 µm, and a crystallinity of 79 % and 70 %, respectively. While, CNCP and CNCB showed a needle shape, a diameter of 5.4 ± 2.3 nm and 6.3 ± 1.8 nm, and a length of 483 ± 74 nm and 529 ± 68 nm, giving rise to an aspect ratio of 89 and 84, respectively. Besides, CNCP and CNCB showed high crystallinity and thermal stability. The extraction of CMF and CNC from pea and broad beans pods has the potential to recover these underused residues and reduce the accumulated waste volume in the environment.
Zineb Kassab; Youness Abdellaoui; Mohamed Hamid Salim; Mounir El Achaby. Cellulosic materials from pea (Pisum Sativum) and broad beans (Vicia Faba) pods agro-industrial residues. Materials Letters 2020, 280, 128539 .
AMA StyleZineb Kassab, Youness Abdellaoui, Mohamed Hamid Salim, Mounir El Achaby. Cellulosic materials from pea (Pisum Sativum) and broad beans (Vicia Faba) pods agro-industrial residues. Materials Letters. 2020; 280 ():128539.
Chicago/Turabian StyleZineb Kassab; Youness Abdellaoui; Mohamed Hamid Salim; Mounir El Achaby. 2020. "Cellulosic materials from pea (Pisum Sativum) and broad beans (Vicia Faba) pods agro-industrial residues." Materials Letters 280, no. : 128539.
Since elevated levels, nutrient-containing discharge in water bodies can lead to severe water imbalance ecosystems due to eutrophication, efficient and cost-effectiveness remediation strategies are urgently required. This work reports the feasibility of using zirconium-modified Merlinoite ([email protected]Merl) obtained from Mexican coal fly ash (CFA) for the removal of phosphate ions from aqueous solutions. Direct method was employed to synthesis merlinoite (Merl) in more than 100% yield related to the intitial CFA. Further, the Merl surface was modified by ZrO2+ through the microwave-assisted process at 130 °C for 5 min. ICP confirmed the increase of Zr(IV) content up to 7.07 wt.% while the potassium concentration decreased from 11.53 to 5.66 wt.%, indicating the successful exchange of Merl surface. The pristine Merl and its [email protected]Merl were characterized by SEM-EDS, XRD, FTIR, BET and TGA. XPS analysis before and after phosphate ions adsorption was done to elucidate the involved adsorption mechanism. Batch experiments were carried out to investigate the effectiveness of [email protected]Merl to remove phosphate ions from aqueous solutions. The adsorption systems were explained by pseudo-second-order and Freundlich models, while the maximum adsorbed amount was found to be 50.89 mg g-1. The XPS results proved that the involved mechanisms for the sorption of phosphate ions onto [email protected]Merl were electrostatic attractions followed by coordination reactions. Further, a theoretical study using Monte Carlo/SA simulations was applied to get insight into the interaction between Merl and [email protected]Merl surface groups and H2PO4- ions. The simulation results demonstrate the favorable adsorption, more stable and spontaneous, onto [email protected]Merl than Merl.
Youness Abdellaouia; Hicham Abou Oualid; Abdelghani Hsini; Brahim El Ibrahimi; Mohamed Laabdc; Mahmoud ElOuardibe; Germángiácoman- Vallejosa; Prócorogamero- Melof. Synthesis of zirconium-modified Merlinoite from fly ash for enhanced removal of phosphate in aqueous medium: Experimental studies supported by Monte Carlo/SA simulations. Chemical Engineering Journal 2020, 404, 126600 .
AMA StyleYouness Abdellaouia, Hicham Abou Oualid, Abdelghani Hsini, Brahim El Ibrahimi, Mohamed Laabdc, Mahmoud ElOuardibe, Germángiácoman- Vallejosa, Prócorogamero- Melof. Synthesis of zirconium-modified Merlinoite from fly ash for enhanced removal of phosphate in aqueous medium: Experimental studies supported by Monte Carlo/SA simulations. Chemical Engineering Journal. 2020; 404 ():126600.
Chicago/Turabian StyleYouness Abdellaouia; Hicham Abou Oualid; Abdelghani Hsini; Brahim El Ibrahimi; Mohamed Laabdc; Mahmoud ElOuardibe; Germángiácoman- Vallejosa; Prócorogamero- Melof. 2020. "Synthesis of zirconium-modified Merlinoite from fly ash for enhanced removal of phosphate in aqueous medium: Experimental studies supported by Monte Carlo/SA simulations." Chemical Engineering Journal 404, no. : 126600.
Herein, four tetrazole derivatives namely 1,2,3,4-tetrazole (TZ), 5-amino-1,2,3,4-tetrazole (ATZ), 1-phenyl-1,2,3,4-tetrazole (PTZ) and 1-phenyl-5-mercapto-1,2,3,4-tetrazole (PMTZ) were investigated as corrosion inhibitors on Cu (111) surface in acidic medium. For this purpose, theoretical investigations were carried out preferentially with Density Functional Theory (DFT) at Lee–Yang–Parr correlation functional (B3LYP) using 6-31+g (2d, p) basis set. Numerous global and locale descriptors of reactivity such as EHOMO, ELUMO, energy gap, electronegativity (χ), hardness (η), frontier molecular orbitals repartitions were investigated to describe the reactivity of each molecule. On the other hand, Monte Carlo simulations were investigated on Cu (111) surface to understand the adsorption behavior of the as-studied inhibitors deeply. The adsorption energies (Eads) were also calculated; the results were as follows: PMTZ ˂ PTZ ˂ ATZ ˂ TZ. The experimental inhibition efficiencies were correlated with global descriptors, which confirm that this theoretical study is fruitful for the protection of copper metal in acidic medium.
Hassan Bourzi; Rachid Oukhrib; Brahim El Ibrahimi; Hicham Abou Oualid; Youness Abdellaoui; Bouchra Balkard; Mustapha Hilali; Souad El Issami. Understanding of anti-corrosive behavior of some tetrazole derivatives in acidic medium: Adsorption on Cu (111) surface using quantum chemical calculations and Monte Carlo simulations. Surface Science 2020, 702, 121692 .
AMA StyleHassan Bourzi, Rachid Oukhrib, Brahim El Ibrahimi, Hicham Abou Oualid, Youness Abdellaoui, Bouchra Balkard, Mustapha Hilali, Souad El Issami. Understanding of anti-corrosive behavior of some tetrazole derivatives in acidic medium: Adsorption on Cu (111) surface using quantum chemical calculations and Monte Carlo simulations. Surface Science. 2020; 702 ():121692.
Chicago/Turabian StyleHassan Bourzi; Rachid Oukhrib; Brahim El Ibrahimi; Hicham Abou Oualid; Youness Abdellaoui; Bouchra Balkard; Mustapha Hilali; Souad El Issami. 2020. "Understanding of anti-corrosive behavior of some tetrazole derivatives in acidic medium: Adsorption on Cu (111) surface using quantum chemical calculations and Monte Carlo simulations." Surface Science 702, no. : 121692.
Fiber-reinforced polymers have emerged as one of the most popular methods to improve the polymers’ characteristics owing to their prominent properties. This study aimed to investigate the properties of cellulose microfibers (CMF), cellulose nanocrystals (CNC) and cellulose nanofibrils (CNF) extracted from hemp stalks, then their effect as reinforcement for the PVA-polymer. CMF have been extracted from hemp stalks with a diameter and yield of 16.96 μm and 63 %, respectively. Needle-shaped CNC were obtained from CMF using sulfuric acid hydrolysis at two hydrolysis times, while CNF exhibited a web-like structure obtained using TEMPO-oxidation followed by mechanical treatment. Cellulose derivatives were utilized to develop cellulose-based PVA composites; their transparency, chemical structure, thermal stability and mechanical properties were investigated. The incorporation of nanocellulose demonstrated a significant increase in mechanical properties compared to the neat PVA. The extracted nanocellulose could be used as nanofillers for the preparation of transparent and mechanically strong PVA-based nanocomposites.
Zineb Kassab; Youness Abdellaoui; Mohamed Hamid Salim; Rachid Bouhfid; Abou El Kacem Qaiss; Mounir El Achaby. Micro- and nano-celluloses derived from hemp stalks and their effect as polymer reinforcing materials. Carbohydrate Polymers 2020, 245, 116506 .
AMA StyleZineb Kassab, Youness Abdellaoui, Mohamed Hamid Salim, Rachid Bouhfid, Abou El Kacem Qaiss, Mounir El Achaby. Micro- and nano-celluloses derived from hemp stalks and their effect as polymer reinforcing materials. Carbohydrate Polymers. 2020; 245 ():116506.
Chicago/Turabian StyleZineb Kassab; Youness Abdellaoui; Mohamed Hamid Salim; Rachid Bouhfid; Abou El Kacem Qaiss; Mounir El Achaby. 2020. "Micro- and nano-celluloses derived from hemp stalks and their effect as polymer reinforcing materials." Carbohydrate Polymers 245, no. : 116506.
Herein, the inhibition behavior of alginate biopolymer with different chain length (fragments) on corrosion of Fe (110), Cu (111), Al (111) and Sn (001) surfaces in acidic medium was investigated using quantum chemical calculations and molecular mechanic methods. Based on HSAB's theory, local and global reactivity indicators of different alginate fragments were calculated using DFT/B3LYP/3-21G method. Molecular mechanic simulations were employed to describe quantitatively and qualitatively the adsorption behavior of the bio-inhibitor on the metal surfaces. As a result, the chain length of alginate and metal nature were considerably affected magnitude and trend of alginate/metal interactions. Gradually as the chain length of the alginate molecule was increased, the binding energy increased. On the other hand, it found that the binding of alginate onto metal surfaces followed this order: Sn (001) < Al (111) < Cu (111) < Fe (110). Additionally, the minimum distance based on the radial distribution function (RDF) analysis between alginate and some aggressive agents for considered surfaces was calculated and discussed.
Rachid Oukhrib; Brahim El Ibrahimi; Hicham Abou Oualid; Youness Abdellaoui; Souad El Issami; Lahcen Bazzi; Mustapha Hilali; Hassan Bourzi. In silico investigations of alginate biopolymer on the Fe (110), Cu (111), Al (111) and Sn (001) surfaces in acidic media: Quantum chemical and molecular mechanic calculations. Journal of Molecular Liquids 2020, 312, 113479 .
AMA StyleRachid Oukhrib, Brahim El Ibrahimi, Hicham Abou Oualid, Youness Abdellaoui, Souad El Issami, Lahcen Bazzi, Mustapha Hilali, Hassan Bourzi. In silico investigations of alginate biopolymer on the Fe (110), Cu (111), Al (111) and Sn (001) surfaces in acidic media: Quantum chemical and molecular mechanic calculations. Journal of Molecular Liquids. 2020; 312 ():113479.
Chicago/Turabian StyleRachid Oukhrib; Brahim El Ibrahimi; Hicham Abou Oualid; Youness Abdellaoui; Souad El Issami; Lahcen Bazzi; Mustapha Hilali; Hassan Bourzi. 2020. "In silico investigations of alginate biopolymer on the Fe (110), Cu (111), Al (111) and Sn (001) surfaces in acidic media: Quantum chemical and molecular mechanic calculations." Journal of Molecular Liquids 312, no. : 113479.
Nowadays, theoretical calculation tools have become powerful in predicting the behavior of corrosion inhibitors on the surface of metals and, therefore, avoiding energy consumption and the cost of experimental tests. This work aims to predict the inhibitory power of some furan derivatives on Cu (111), Fe (110), Al (111) and Sn (111) surfaces in acidic media. For this purpose, three furan derivatives—furan-2-carbaldehyde (FF1), 5-(hydroxymethyl)furfural (FF2) and 5-(hydroxymethyl)furoic acid (FF3)—have been selected to compare their intrinsic properties against corrosion as well as their behavior on iron (Fe), copper (Cu), aluminum (Al) and tin (Sn) surfaces in acid medium. Typically, the anti-corrosive properties of FF1, FF2 and FF3 were studied by using quantum chemical calculations and Monte Carlo simulations. Density Functional Theory (DFT), lowest unoccupied (ELUMO) and highest occupied (EHOMO) molecular orbital energies, energy gap (∆E), chemical hardness (η), softness (σ), electronegativity (χ), electrophilicity (ω) and nucleophilicity (ε) have been calculated and discussed. Theoretical vibrational spectra were also calculated to exhibit the functional groups in the selected chemicals. On the other hand, the adsorption behaviors of FF1, FF2 and FF3 were studied on the Fe(110), Cu(111), Al(111) and Sn(111) surfaces. As a result, the adsorption energies of all molecules are ordered as Fe(110) < Cu(111) < Al(111) < Sn(111) and FF3 seems to be more effective as a corrosion inhibitor due to the existence of both carboxylic acid and hydroxyl groups, which consist of favorable sites of adsorption into the metal surface.
Hassan Bourzi; Rachid Oukhrib; Brahim El Ibrahimi; Hicham Abou Oualid; Youness Abdellaoui; Bouchra Balkard; Souad El Issami; Mustapha Hilali; Lahcen Bazzi; Christophe Len. Furfural Analogs as Sustainable Corrosion Inhibitors—Predictive Efficiency Using DFT and Monte Carlo Simulations on the Cu(111), Fe(110), Al(111) and Sn(111) Surfaces in Acid Media. Sustainability 2020, 12, 3304 .
AMA StyleHassan Bourzi, Rachid Oukhrib, Brahim El Ibrahimi, Hicham Abou Oualid, Youness Abdellaoui, Bouchra Balkard, Souad El Issami, Mustapha Hilali, Lahcen Bazzi, Christophe Len. Furfural Analogs as Sustainable Corrosion Inhibitors—Predictive Efficiency Using DFT and Monte Carlo Simulations on the Cu(111), Fe(110), Al(111) and Sn(111) Surfaces in Acid Media. Sustainability. 2020; 12 (8):3304.
Chicago/Turabian StyleHassan Bourzi; Rachid Oukhrib; Brahim El Ibrahimi; Hicham Abou Oualid; Youness Abdellaoui; Bouchra Balkard; Souad El Issami; Mustapha Hilali; Lahcen Bazzi; Christophe Len. 2020. "Furfural Analogs as Sustainable Corrosion Inhibitors—Predictive Efficiency Using DFT and Monte Carlo Simulations on the Cu(111), Fe(110), Al(111) and Sn(111) Surfaces in Acid Media." Sustainability 12, no. 8: 3304.
In the present work, chitosan/fluorapatite composite was successfully prepared and applied for the removal of chromium (VI). The synthesized materials were characterized using X-rays diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), scanning electronic microscopy (SEM), and energy-dispersive X-ray spectroscopy (EDS). The thermogravimetric analysis (TGA) and pH of the point of zero charge (pHPZC) were also considered as a part of these characterizations. A batch system was carried out to evaluate the effects of contact time, initial Cr (VI) concentration, initial pH, and adsorbent dosage on the adsorption process. The regression coefficient value showed that the experimental data best fit to pseudo-second-order model (PSO), while the Langmuir adsorption isotherms best described the equilibrium adsorption data with highest qm of 81.34 and 100.92 mg/g for CS and CS-Fa, respectively. Finally, CS-Fa was successfully reused for more than 6 cycles without severe loss in its sorption capacity. The effect of various parameters such as pH, mass, temperature, and contact time was studied using response surface methodology (RSM) and the suggested optimized values by RSM were found to be 2.54 for pH, 25.75 °C, 36.63 min, and 86.72 mg of CS-Fa adsorbent. The maximum adsorption removal efficiency of Cr (VI) was equal to 91.28% under optimum conditions.
Rachid El Kaim Billah; Youness Abdellaoui; Zakaria Anfar; Germán Giácoman-Vallejos; Mahfoud Agunaou; Abdessadik Soufiane. Synthesis and Characterization of Chitosan/Fluorapatite Composites for the Removal of Cr (VI) from Aqueous Solutions and Optimized Parameters. Water, Air, & Soil Pollution 2020, 231, 1 -14.
AMA StyleRachid El Kaim Billah, Youness Abdellaoui, Zakaria Anfar, Germán Giácoman-Vallejos, Mahfoud Agunaou, Abdessadik Soufiane. Synthesis and Characterization of Chitosan/Fluorapatite Composites for the Removal of Cr (VI) from Aqueous Solutions and Optimized Parameters. Water, Air, & Soil Pollution. 2020; 231 (4):1-14.
Chicago/Turabian StyleRachid El Kaim Billah; Youness Abdellaoui; Zakaria Anfar; Germán Giácoman-Vallejos; Mahfoud Agunaou; Abdessadik Soufiane. 2020. "Synthesis and Characterization of Chitosan/Fluorapatite Composites for the Removal of Cr (VI) from Aqueous Solutions and Optimized Parameters." Water, Air, & Soil Pollution 231, no. 4: 1-14.
In this paper, the synthesis and characterization of porous carbon (PC) and porous carbon loaded ZnO nanoparticles ([email protected]) were investigated. The removal efficiency of Methylene Blue (MB) under ultrasound waves (UAA) and without ultrasound waves (SA) was studied considering the adsorbents dose, contact time, solution pH, temperature and initial dye concentration. Ultrasound irradiation have a positive effect on the removal efficiency of MB whereas ZnO nanoparticles incorporate in the surface of PC improve the regeneration efficiency of PC. [email protected] NPs shows high performance of MB removal using UAA, which was used for simultaneous removal of Crystal Violet (CV) and Congo Red (CR). The ultrasonic adsorption of CV/CR on [email protected] was found to be dependent on different parameters such as contact time, solution pH and initial dye concentration. The experimental results were found to follow the pseudo‐second‐order and Langmuir models. The adsorbed amount was found to be 64 mg g−1 (for CR) and 109 mg g−1 (for CV). Further, the effects of various parameters such as contact time, pH, initial dye concentration, and CV:CR ratio, were studied using central composite design coupled with response surface methodology. The data showed that the [email protected] has strong selective adsorption of CV dye in comparison to CR, and optimum conditions were found to be natural pH, 11.19 mg, (55:45%) of CV:CR ratio, 25 min and 30 mg L−1 at adsorption temperature T=25 °C ± 1. In these conditions, both dyes (CV and CR) are easily regenerated using HCl (0.1 M).
Zakaria Anfar; Mohamed Zbair; Hassan Ait Ahsaine; Youness Abdellaoui; Abdellah Ait El Fakir; Elhassan Amaterz; Amane Jada; Noureddine El Alem. Preparation and Characterization of Porous [email protected]‐NPs for Organic Compounds Removal: Classical Adsorption Versus Ultrasound Assisted Adsorption. ChemistrySelect 2019, 4, 4981 -4994.
AMA StyleZakaria Anfar, Mohamed Zbair, Hassan Ait Ahsaine, Youness Abdellaoui, Abdellah Ait El Fakir, Elhassan Amaterz, Amane Jada, Noureddine El Alem. Preparation and Characterization of Porous [email protected]‐NPs for Organic Compounds Removal: Classical Adsorption Versus Ultrasound Assisted Adsorption. ChemistrySelect. 2019; 4 (17):4981-4994.
Chicago/Turabian StyleZakaria Anfar; Mohamed Zbair; Hassan Ait Ahsaine; Youness Abdellaoui; Abdellah Ait El Fakir; Elhassan Amaterz; Amane Jada; Noureddine El Alem. 2019. "Preparation and Characterization of Porous [email protected]‐NPs for Organic Compounds Removal: Classical Adsorption Versus Ultrasound Assisted Adsorption." ChemistrySelect 4, no. 17: 4981-4994.
Youness Abdellaoui; María Teresa Olguín; Mohamed Abatal; Bassam Ali; Sosimo Emmanuel Díaz Méndez; Arlette A. Santiago. Comparison of the divalent heavy metals (Pb, Cu and Cd) adsorption behavior by montmorillonite-KSF and their calcium- and sodium-forms. Superlattices and Microstructures 2019, 127, 165 -175.
AMA StyleYouness Abdellaoui, María Teresa Olguín, Mohamed Abatal, Bassam Ali, Sosimo Emmanuel Díaz Méndez, Arlette A. Santiago. Comparison of the divalent heavy metals (Pb, Cu and Cd) adsorption behavior by montmorillonite-KSF and their calcium- and sodium-forms. Superlattices and Microstructures. 2019; 127 ():165-175.
Chicago/Turabian StyleYouness Abdellaoui; María Teresa Olguín; Mohamed Abatal; Bassam Ali; Sosimo Emmanuel Díaz Méndez; Arlette A. Santiago. 2019. "Comparison of the divalent heavy metals (Pb, Cu and Cd) adsorption behavior by montmorillonite-KSF and their calcium- and sodium-forms." Superlattices and Microstructures 127, no. : 165-175.
Leucaena leucocephala is a potential source of polyphenols widely available in southern Mexico. This work highlights the extraction of polyphenols from Leucaena leucocephala leaves waste (LLEPs) and the evaluation of their efficiency to remove the single and multicomponent Pb(II) and Cd(II) metal ions from aqueous solutions. Batch test conditions were carried out to examine the effects of contact time, initial metal ion concentration, and adsorbent dosage on the biosorption process. The surface textures and the composition of the LLEP biosorbent was characterized using pH of point of zero charge (pHPZC), attenuated total reflectance Fourier transform infrared (ATR-FTIR), and matrix-assisted laser desorption/ionization time of flight (MALDI-TOF) mass spectrometry, respectively. Further analysis using ATR-FTIR after adsorption contact of biosorbent was also investigated. The highest Langmuir saturation monolayer adsorption capacity, qm, for the removal of Pb(II) by LLEPs was obtained as 25.51 and 21.55 mg/g in mono- and bimetal solutions, respectively. The pseudo-second-order model provided the best fit for the kinetic data obtained for the removal of Pb(II), Cd(II), and their mixture, and the k2 values depend on the adsorbent mass. This implied that the chemisorption process might be the mechanism of the solute ions-LLEPs interaction in this study. Furthermore, nearly 100% removal of lead and cadmium individually and 95% of their mixture was found using 0.9 g of LLEPs.
C. A. Cimá-Mukul; Youness Abdellaoui; Mohamed Abatal; Joel Vargas; Arlette A Santiago; Jesús Alberto Barrón-Zambrano. Eco-Efficient Biosorbent Based on Leucaena leucocephala Residues for the Simultaneous Removal of Pb(II) and Cd(II) Ions from Water System: Sorption and Mechanism. Bioinorganic Chemistry and Applications 2019, 2019, 1 -13.
AMA StyleC. A. Cimá-Mukul, Youness Abdellaoui, Mohamed Abatal, Joel Vargas, Arlette A Santiago, Jesús Alberto Barrón-Zambrano. Eco-Efficient Biosorbent Based on Leucaena leucocephala Residues for the Simultaneous Removal of Pb(II) and Cd(II) Ions from Water System: Sorption and Mechanism. Bioinorganic Chemistry and Applications. 2019; 2019 ():1-13.
Chicago/Turabian StyleC. A. Cimá-Mukul; Youness Abdellaoui; Mohamed Abatal; Joel Vargas; Arlette A Santiago; Jesús Alberto Barrón-Zambrano. 2019. "Eco-Efficient Biosorbent Based on Leucaena leucocephala Residues for the Simultaneous Removal of Pb(II) and Cd(II) Ions from Water System: Sorption and Mechanism." Bioinorganic Chemistry and Applications 2019, no. : 1-13.
Youness Abdellaoui; M.T. Olguin; Mohamed Abatal; Ali Bassam; G. Giácoman-Vallejo. Relationship between Si/Al ratio and the sorption of Cd(II) by natural and modified clinoptilolite-rich tuff with sulfuric acid. DESALINATION AND WATER TREATMENT 2019, 150, 157 -165.
AMA StyleYouness Abdellaoui, M.T. Olguin, Mohamed Abatal, Ali Bassam, G. Giácoman-Vallejo. Relationship between Si/Al ratio and the sorption of Cd(II) by natural and modified clinoptilolite-rich tuff with sulfuric acid. DESALINATION AND WATER TREATMENT. 2019; 150 ():157-165.
Chicago/Turabian StyleYouness Abdellaoui; M.T. Olguin; Mohamed Abatal; Ali Bassam; G. Giácoman-Vallejo. 2019. "Relationship between Si/Al ratio and the sorption of Cd(II) by natural and modified clinoptilolite-rich tuff with sulfuric acid." DESALINATION AND WATER TREATMENT 150, no. : 157-165.
Iván Ayoseth Chulines Domínguez; Youness Abdellaoui; Mohamed Abatal; Cristobal Patiño-Carachure. Characterizations and Industrial Applications for Cement and Concrete Incorporated Natural Zeolite. Zeolites and Their Applications 2018, 1 .
AMA StyleIván Ayoseth Chulines Domínguez, Youness Abdellaoui, Mohamed Abatal, Cristobal Patiño-Carachure. Characterizations and Industrial Applications for Cement and Concrete Incorporated Natural Zeolite. Zeolites and Their Applications. 2018; ():1.
Chicago/Turabian StyleIván Ayoseth Chulines Domínguez; Youness Abdellaoui; Mohamed Abatal; Cristobal Patiño-Carachure. 2018. "Characterizations and Industrial Applications for Cement and Concrete Incorporated Natural Zeolite." Zeolites and Their Applications , no. : 1.
Mohamed Abatal; Maria Teresa Olguin; Youness Abdellaoui; Abdesslam El Bouari. Sorption of Cd(II), Ni(II) and Zn(II) by natural, sodium, and acid-modified clinoptilolite-rich tuff. Environment Protection Engineering 2018, 44, 1 .
AMA StyleMohamed Abatal, Maria Teresa Olguin, Youness Abdellaoui, Abdesslam El Bouari. Sorption of Cd(II), Ni(II) and Zn(II) by natural, sodium, and acid-modified clinoptilolite-rich tuff. Environment Protection Engineering. 2018; 44 (1):1.
Chicago/Turabian StyleMohamed Abatal; Maria Teresa Olguin; Youness Abdellaoui; Abdesslam El Bouari. 2018. "Sorption of Cd(II), Ni(II) and Zn(II) by natural, sodium, and acid-modified clinoptilolite-rich tuff." Environment Protection Engineering 44, no. 1: 1.