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Aziri S, Meziane S, Bozetine H, Berkane N. Taguchi method for optimization of Cr(VI) removal, isotherm, kinetic and thermodynamic studies. NUCLEOSIDES, NUCLEOTIDES & NUCLEIC ACIDS 2024:1-25. [PMID: 38319982 DOI: 10.1080/15257770.2024.2308517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 01/17/2024] [Indexed: 02/08/2024]
Abstract
In this study, Taguchi optimization method was applied to determine the optimum operating conditions for batch adsorption of Cr(VI) from aqueous solution. Initial pH of solution, adsorbent dose, initial hexavalent chromium concentration, contact time and adsorbent type were selected as the variables, and the removal efficiency of Cr(VI) was chosen for the designated response. L18(35) orthogonal array, signal-to-noise (S/N) ratio and analysis of variance statistical procedures were applied to identify the effect of each operating parameter on the removal of Cr(VI) from aqueous solution. The signal-to-noise (S/N) ratio results showed that the optimal combination for Cr(VI) removal was at pH 1.0, adsorbent dose of 3.6 g.L-1, Cr(VI) concentration of 30 mg.L-1, contact time of 95 min and olive leaves as adsorbent type. A removal of 95.09% was obtained at these optimum conditions. The analysis of variance of the data revealed that initial pH of solution was the most dominant parameter affecting Cr(VI) removal efficiency, followed by adsorbent type, adsorbent dose, contact time and initial metal concentration. Under optimal conditions, adsorption kinetic of Cr(VI) was studied and modeled using the pseudo first-order, pseudo-second-order and intraparticle diffusion models. It was found that the pseudo-second-order model fitted the adsorption data most with the highest determination coefficient (R2 = 0.996). Freundlich isotherm model, with regression coefficient R2 of 0.953, fit well with the equilibrium isotherm data. The Langmuir maximum adsorption capacity was found to be 62.5 mg.g-1. The experimental values of ΔH°, ΔG° and ΔS° revealed that the adsorption process was spontaneous and endothermic.
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Affiliation(s)
- Sabrina Aziri
- Laboratory of Applied Chemistry and Chemical Engineering, University Mouloud Mammeri of Tizi-Ouzou, Tizi-Ouzou, Algeria
| | - Smail Meziane
- Laboratory of Applied Chemistry and Chemical Engineering, University Mouloud Mammeri of Tizi-Ouzou, Tizi-Ouzou, Algeria
| | - Hakima Bozetine
- Laboratory of Applied Chemistry and Chemical Engineering, University Mouloud Mammeri of Tizi-Ouzou, Tizi-Ouzou, Algeria
| | - Nabila Berkane
- Laboratory of Applied Chemistry and Chemical Engineering, University Mouloud Mammeri of Tizi-Ouzou, Tizi-Ouzou, Algeria
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2
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Naciri Y, Ahdour A, Benhsina E, Hamza MA, Bouziani A, Hsini A, Bakiz B, Navío JA, Ghazzal MN. Ba 3(PO 4) 2 Photocatalyst for Efficient Photocatalytic Application. GLOBAL CHALLENGES (HOBOKEN, NJ) 2024; 8:2300257. [PMID: 38223895 PMCID: PMC10784198 DOI: 10.1002/gch2.202300257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 10/29/2023] [Indexed: 01/16/2024]
Abstract
Barium phosphate (Ba3(PO4)2) is a class of material that has attracted significant attention thanks to its chemical stability and versatility. However, the use of Ba3(PO4)2 as a photocatalyst is scarcely reported, and its use as a photocatalyst has yet to be reported. Herein, Ba3(PO4)2 nanoflakes synthesis is optimized using sol-gel and hydrothermal methods. The as-prepared Ba3(PO4)2 powders are investigated using physicochemical characterizations, including XRD, SEM, EDX, FTIR, DRS, J-t, LSV, Mott-Schottky, and EIS. In addition, DFT calculations are performed to investigate the band structure. The oxidation capability of the photocatalysts is investigated depending on the synthesis method using rhodamine B (RhB) as a pollutant model. Both Ba3(PO4)2 samples prepared by the sol-gel and hydrothermal methods display high RhB photodegradation of 79% and 68%, respectively. The Ba3(PO4)2 obtained using the sol-gel process exhibits much higher stability under light excitation after four regeneration cycles. The photocatalytic oxidation mechanism is proposed based on the active species trapping experiments where O2 •‒ is the most reactive species. The finding shows the promising potential of Ba3(PO4)2 photocatalysts and opens the door for further investigation and application in various photocatalytic applications.
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Affiliation(s)
- Yassine Naciri
- Institut de Chimie PhysiqueUMR 8000 CNRSUniversité Paris‐SaclayOrsay91405France
| | - Ayoub Ahdour
- Laboratory of Materials and EnvironmentFaculty of SciencesIbn Zohr UniversityB.P 8106AgadirMorocco
| | - Elhassan Benhsina
- Materials Science CenterFaculty of SciencesMohammed V University in RabatRabatB.P:8007Morocco
| | - Mahmoud Adel Hamza
- Chemistry DepartmentFaculty of ScienceAin Shams UniversityAbbasiaCairo11566Egypt
- Department of ChemistrySchool of PhysicsChemistry and Earth SciencesThe University of AdelaideAdelaideSA5005Australia
| | - Asmae Bouziani
- Chemical Engineering DepartmentMiddle East Technical UniversityAnkara06800Turkey
| | - Abdelghani Hsini
- National Higher School of Chemistry (NHSC)University Ibn TofailBP. 133Kenitra14000Morocco
- Laboratory of Advanced Materials and Process Engineering (LAMPE)Faculty of ScienceIbn Tofail UniversityBP 133Kenitra14000Morocco
| | - Bahcine Bakiz
- Laboratory of Materials and EnvironmentFaculty of SciencesIbn Zohr UniversityB.P 8106AgadirMorocco
- Materials Science CenterFaculty of SciencesMohammed V University in RabatRabatB.P:8007Morocco
| | - Jose Antonio Navío
- Instituto de Ciencia de Materiales de SevillaCentro Mixto Universidad de Sevilla‐CSICAmérico Vespucio 49Sevilla41092Spain
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3
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Chouli F, Ezzat AO, Sabantina L, Benyoucef A, Zehhaf A. Optimization Conditions of Malachite Green Adsorption onto Almond Shell Carbon Waste Using Process Design. Molecules 2023; 29:54. [PMID: 38202637 PMCID: PMC10780247 DOI: 10.3390/molecules29010054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Revised: 11/30/2023] [Accepted: 12/12/2023] [Indexed: 01/12/2024] Open
Abstract
Almond shell-based biocarbon is a cheap adsorbent for the removal of malachite green, which has been investigated in this work. FT-IR, DRX, and BET were used to characterize almond shell-based biocarbon. The nitrogen adsorption-desorption isotherms analysis results showed a surface area of 120.21 m2/g and a type H4 adsorption isotherm. The parameters of initial dye concentration (5-600 mg.L-1), adsorbent mass (0.1-0.6 mg), and temperature (298-373 K) of adsorption were investigated. The experiments showed that the almond shell could be used in a wide concentration and temperature range. The adsorption study was fitted to the Langmuir isotherm and the pseudo-second-order kinetic model. The results of the FT-IR analysis demonstrated strong agreement with the pseudo-second-order chemisorption process description. The maximum adsorption capacity was calculated from the Langmuir isotherm and evaluated to be 166.66 mg.g-1. The positive ∆H (12.19 J.mol-1) indicates that the adsorption process is endothermic. Almond shell was found to be a stable adsorbent. Three different statistical design sets of experiments were taken out to determine the best conditions for the batch adsorption process. The optimal conditions for MG uptake were found to be adsorbent mass (m = 0.1 g), initial dye concentration (C0 = 600 mg.L-1), and temperature (T = 25 °C). The analysis using the D-optimal design showed that the model obtained was important and significant, with an R2 of 0.998.
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Affiliation(s)
- Faiza Chouli
- LMAE Laboratory, Department of Process Engineering, Faculty of Science and Technologies, Mascara University, Mascara 29000, Algeria;
| | - Abdelrahman Osama Ezzat
- Department of Chemistry, College of Sciences, King Saud University, Riyadh 11451, Saudi Arabia;
| | - Lilia Sabantina
- Department of Apparel Engineering and Textile Processing, Berlin University of Applied Sciences—HTW, 12459 Berlin, Germany
- Department of Textile and Paper Engineering, Polytechnic University of Valencia, E-03801 Alcoy, Spain
| | - Abdelghani Benyoucef
- LSTE Laboratory, Department of Process Engineering, Faculty of Science and Technologies, Mascara University, Mascara 29000, Algeria
| | - Abdelhafid Zehhaf
- Laboratory of Process Engineering and Chemistry Solution, Department of Process Engineering, Faculty of Science and Technologies, Mascara University, Mascara 29000, Algeria;
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Yang Y, Xu M, Jin W, Jin J, Dong F, Zhang Z, Yan X, Shao M, Wan Y. PANI/MCM-41 adsorption for removal of Cr(VI) ions and its application in enhancing electrokinetic remediation of Cr(VI)-contaminated soil. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:121684-121701. [PMID: 37953422 DOI: 10.1007/s11356-023-30751-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Accepted: 10/25/2023] [Indexed: 11/14/2023]
Abstract
In this study, a polyaniline/mesoporous silica (PANI/MCM-41) composite material that can be used as a filler for permeable reactive barrier (PRB) was prepared by in situ polymerization. Firstly, the adsorption capacity of PANI/MCM-41 on Cr (VI) in solution was investigated. The results show that the prepared PANI/MCM-41 exhibits a significant Cr (VI) adsorption capacity (~ 340 mg/g), and the adsorption process is more accurately described by the Langmuir isotherm and pseudo-second-order kinetic model. The thermodynamic functions evidenced that the Cr(VI) adsorption was an endothermic spontaneous process. In addition, adsorption-desorption cycle experiments proved the excellent reusability of the material. Subsequently, the material was utilized as a filler in the PRB for the remediation of Cr(VI)-contaminated soil using electrokinetic-permeable reactive barrier (EK-PRB) technology. The results show that compared with traditional electrokinetic remediation, the use of PANI/MCM-41 as an active filler can enlarge the current during remediation and enhance the conductivity of soil, which increases the removal rates of total Cr and Cr(VI) in soil (17.4% and 10.2%).
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Affiliation(s)
- Yanzhi Yang
- School of Environmental Science and Engineering, Changzhou University, Changzhou, 213164, China
| | - Mingchen Xu
- School of Environmental Science and Engineering, Changzhou University, Changzhou, 213164, China
| | - Wenlou Jin
- School of Environmental Science and Engineering, Changzhou University, Changzhou, 213164, China
| | - Jiacheng Jin
- School of Environmental Science and Engineering, Changzhou University, Changzhou, 213164, China
| | - Fan Dong
- School of Environmental Science and Engineering, Changzhou University, Changzhou, 213164, China
| | - Zhipeng Zhang
- School of Environmental Science and Engineering, Changzhou University, Changzhou, 213164, China
| | - Xin Yan
- School of Environmental Science and Engineering, Changzhou University, Changzhou, 213164, China
| | - Min Shao
- School of Environmental Science and Engineering, Changzhou University, Changzhou, 213164, China
| | - Yushan Wan
- School of Environmental Science and Engineering, Changzhou University, Changzhou, 213164, China.
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Anwer AH, Ahtesham A, Shoeb M, Mashkoor F, Ansari MZ, Zhu S, Jeong C. State-of-the-art advances in nanocomposite and bio-nanocomposite polymeric materials: A comprehensive review. Adv Colloid Interface Sci 2023; 318:102955. [PMID: 37467558 DOI: 10.1016/j.cis.2023.102955] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 05/23/2023] [Accepted: 06/20/2023] [Indexed: 07/21/2023]
Abstract
The modern eco-friendly materials used in research and innovation today consist of nanocomposites and bio-nanocomposite polymers. Their unique composite properties make them suitable for various industrial, medicinal, and energy applications. Bio-nanocomposite polymers are made of biopolymer matrices that have nanofillers dispersed throughout them. There are several types of fillers that can be added to polymers to enhance their quality, such as cellulose-based fillers, clay nanomaterials, carbon black, talc, carbon quantum dots, and many others. Biopolymer-based nanocomposites are considered a superior alternative to traditional materials as they reduce reliance on fossil fuels and promote the use of renewable resources. This review covers the current state-of-the-art in nanocomposite and bio-nanocomposite materials, focusing on ways to improve their features and the various applications they can be used for. The review article also investigates the utilization of diverse nanocomposites as a viable approach for developing bio-nanocomposites. It delves into the underlying principles that govern the synthesis of these materials and explores their prospective applications in the biomedical field, food packaging, sensing (Immunosensors), and energy storage devices. Lastly, the review discusses the future outlook and current challenges of these materials, with a focus on sustainability.
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Affiliation(s)
- Abdul Hakeem Anwer
- School of Mechanical Engineering, Yeungnam University, Gyeongsan, Gyeongbuk 38541, Republic of Korea
| | - Afreen Ahtesham
- School of Chemical Sciences University Sains Malaysia, Penang, Malaysia
| | - Mohd Shoeb
- School of Mechanical Engineering, Yeungnam University, Gyeongsan, Gyeongbuk 38541, Republic of Korea
| | - Fouzia Mashkoor
- School of Mechanical Engineering, Yeungnam University, Gyeongsan, Gyeongbuk 38541, Republic of Korea
| | - Mohd Zahid Ansari
- School of Materials Science and Engineering, Yeungnam University, Gyeongsan, Gyeongbuk, 38541, Republic of Korea
| | - Shushuai Zhu
- School of Mechanical Engineering, Yeungnam University, Gyeongsan, Gyeongbuk 38541, Republic of Korea
| | - Changyoon Jeong
- School of Mechanical Engineering, Yeungnam University, Gyeongsan, Gyeongbuk 38541, Republic of Korea.
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6
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Zhang X, Li Y, Zou W, Ding L, Chen J. Sorption enhancement of Cr(VI) from aqueous solution by polyaniline confined in three-dimensional network of composite porous hydrogel. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:92404-92416. [PMID: 37491493 DOI: 10.1007/s11356-023-28948-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 07/19/2023] [Indexed: 07/27/2023]
Abstract
Hexavalent chromium Cr(VI) is a typical harmful pollutant, which is carcinogenic or mutagenic to aquatic animals and humans. In this study, sepiolite/humic acid/polyvinyl alcohol@ polyaniline (SC/HA/PVA@PANI) composite porous hydrogel adsorbent was synthesized by Pickering emulsion template in situ chemical oxidative polymerization for adsorption of Cr(VI) from aqueous solution. The in situ polymerization of aniline at the Pickering emulsion interface and the unique three-dimensional network structure of the hydrogel act as an effective "confinement" for the growth of the polymer. The porous structure of the material acts as a water channel, which effectively accelerates the binding of the adsorbate to the adsorption sites, and significantly improves the adsorption rate and adsorption capacity. The adsorption capacity of PANI for Cr(VI) confined in three-dimensional network of composite porous SC/HA/PVA@PANI hydrogel reached 1180.97 mg/g-PANI, which increased about 27-fold compared the adsorption capacity of pure PANI (43.48 mg/g). It is shown that the experimental design effectively avoids the agglomeration of PANI and improves its potential adsorption performance. In addition, the analysis of FESEM-EDX, FT-IR, and XPS spectra before and after adsorption confirmed that the main adsorption mechanisms of Cr(VI) on SC/HA/PVA@PANI included ion exchange, electrostatic attraction, and redox reaction. In conclusion, SC/HA/PVA@PANI has good stability and excellent adsorption performance, which is a new type of Cr(VI) ion adsorbent with great potential.
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Affiliation(s)
- Xuejiao Zhang
- College of Chemistry and Chemical Engineering, Anhui University of Technology, Ma Xiang road, Maanshan, 243000, People's Republic of China
| | - Yulin Li
- College of Chemistry and Chemical Engineering, Anhui University of Technology, Ma Xiang road, Maanshan, 243000, People's Republic of China
| | - Wenjie Zou
- College of Chemistry and Chemical Engineering, Anhui University of Technology, Ma Xiang road, Maanshan, 243000, People's Republic of China
| | - Li Ding
- College of Chemistry and Chemical Engineering, Anhui University of Technology, Ma Xiang road, Maanshan, 243000, People's Republic of China
| | - Jun Chen
- College of Chemistry and Chemical Engineering, Anhui University of Technology, Ma Xiang road, Maanshan, 243000, People's Republic of China.
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Gupta AR, Indurkar PD, Mondal M, Joshi VC, Bhattacharya A, Sharma S. One-pot facile approach to design an efficient macro-porous polymeric matrix to remediate Hg(II)and Pb(II) from aqueous medium and its performance evaluation study by mathematical modelling. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 323:121255. [PMID: 36775131 DOI: 10.1016/j.envpol.2023.121255] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 01/25/2023] [Accepted: 02/09/2023] [Indexed: 06/18/2023]
Abstract
In the present scenario discharge of heavy-metal ions into water bodies is a global threat that is causing serious health hazards even in low concentrations. Thus, in order to remediate the heavy-metal [Hg(II) and Pb(II)] toxicity, an organic-inorganic hybrid functional porous metallo-polymeric network i. e, poly(Zirconyl methacrylate-co-1-vinyl imidazole) (pZrVIm) was fabricated via one-pot facile synthesis approach. The pZrVIm architecture has shown high removal efficiency for Hg(II) and Pb(II) aqueous medium even in extremely low quantities. Advanced instrumental techniques were used to characterize the structural and morphological characteristics of pZrVIm. Different experimental variables i.e., reaction time, pH, initial feed concentration, co-ion effects etc. were explored to examine adsorption behaviour. The maximum adsorption capacities (qmax) of pZrVIm5 were calculated as 168.06 and 162.34 mg g-1 for Hg(II) and Pb(II) respectively by the Langmuir isotherm model. Data from isotherms showed that monolayer adsorption on a homogeneous surface is the rate-limiting stage and followed pseudo-second-order kinetic process. The Artificial Neural Network (ANN) modelling was used to validate kinetics and isotherm data which revealed high accuracy of the model with correlation coefficient values (R = 0.99). Various types of isotherm models such as Langmuir, Freundlich, Dubinin-Radushkevich, Temkin, Redlich-Peterson, Toth and Koble-Corigen have been studied to determine the adsorption phenomena. The pore diffusion model revealed breakthrough time of 91 h and 84 h, Hg(II) and Pb(II) with the feed concentration of 15 mg L-1 respectively. The study revealed that pZrVIm5 has great potential for heavy metal ions remediation for water treatment.
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Affiliation(s)
- Anil R Gupta
- Membrane Science & Separation Technology Division, CSIR-Central Salt & Marine Chemicals Research Institute, G. B. Marg, Bhavnagar, 364002, Gujarat, India
| | - Pankaj D Indurkar
- Membrane Science & Separation Technology Division, CSIR-Central Salt & Marine Chemicals Research Institute, G. B. Marg, Bhavnagar, 364002, Gujarat, India
| | - Mrinmoy Mondal
- Membrane Science & Separation Technology Division, CSIR-Central Salt & Marine Chemicals Research Institute, G. B. Marg, Bhavnagar, 364002, Gujarat, India
| | - Vipin C Joshi
- Process Design & Engineering Cell, CSIR-Central Salt & Marine Chemicals Research Institute, G. B. Marg, Bhavnagar, 364002, Gujarat, India
| | - Amit Bhattacharya
- Membrane Science & Separation Technology Division, CSIR-Central Salt & Marine Chemicals Research Institute, G. B. Marg, Bhavnagar, 364002, Gujarat, India
| | - Saroj Sharma
- Membrane Science & Separation Technology Division, CSIR-Central Salt & Marine Chemicals Research Institute, G. B. Marg, Bhavnagar, 364002, Gujarat, India.
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8
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Improving copper(II) ion detection and adsorption from wastewater by the ligand-functionalized composite adsorbent. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2023.135259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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Thao LT, Nguyen TV, Nguyen VQ, Phan NM, Kim KJ, Huy NN, Dung NT. Orange G degradation by heterogeneous peroxymonosulfate activation based on magnetic MnFe 2O 4/α-MnO 2 hybrid. J Environ Sci (China) 2023; 124:379-396. [PMID: 36182147 DOI: 10.1016/j.jes.2021.10.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 10/04/2021] [Accepted: 10/09/2021] [Indexed: 06/16/2023]
Abstract
Wastewater containing an azo dye Orange G (OG) causes massive environmental pollution, thus it is critical to develop a highly effective, environmental-friendly, and reusable catalyst in peroxymonosulfate (PMS) activation for OG degradation. In this work, we successfully applied a magnetic MnFe2O4/α-MnO2 hybrid fabricated by a simple hydrothermal method for OG removal in water. The characteristics of the hybrid were investigated by X-ray diffraction, scanning electron microscopy, energy-dispersive X-ray spectroscopy, Fourier transform infrared spectroscopy, Brunauer-Emmett-Teller method, vibrating sample magnetometry, electron paramagnetic resonance, thermogravimetric analysis, and X-ray photoelectron spectroscopy. The effects of operational parameters (i.e., catalytic system, catalytic dose, solution pH, and temperature) were investigated. The results exhibited that 96.8% of OG degradation was obtained with MnFe2O4/α-MnO2(1:9)/PMS system in 30 min regardless of solution pH changes. Furthermore, the possible reaction mechanism of the coupling system was proposed, and the degradation intermediates of OG were identified by mass spectroscopy. The radical quenching experiments and EPR tests demonstrated that SO4•̶, O2•̶, and 1O2 were the primary reactive oxygen species responsible for the OG degradation. The hybrid also displayed unusual stability with less than 30% loss in the OG removal after four sequential cycles. Overall, magnetic MnFe2O4/α-MnO2 hybrid could be used as a high potential activator of PMS to remove orange G and maybe other dyes from wastewater.
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Affiliation(s)
- Le Thi Thao
- Faculty of Physical and Chemical Engineering, Le Quy Don Technical University, Hanoi 100000, Vietnam; Department of Energy Engineering, Konkuk University, Seoul 05029, Korea
| | - To Van Nguyen
- Faculty of Physical and Chemical Engineering, Le Quy Don Technical University, Hanoi 100000, Vietnam
| | - Van Quy Nguyen
- School of Chemical Engineering, College of Engineering, Sungkyunkwan University, Jangan-gu, Suwon 16419, Korea
| | - Ngoc Man Phan
- School of Chemical Engineering, College of Engineering, Sungkyunkwan University, Jangan-gu, Suwon 16419, Korea
| | - Ki Jae Kim
- Department of Energy Engineering, Konkuk University, Seoul 05029, Korea.
| | - Nguyen Nhat Huy
- Faculty of Environment and Natural Resources, Ho Chi Minh City University of Technology (HCMUT), Ho Chi Minh City 700000, Vietnam; Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc City, Ho Chi Minh City 700000, Vietnam
| | - Nguyen Trung Dung
- Faculty of Physical and Chemical Engineering, Le Quy Don Technical University, Hanoi 100000, Vietnam.
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Aziz K, Aziz F, Mamouni R, Aziz L, Anfar Z, Azrrar A, Kjidaa B, Saffaj N, Laknifli A. High thiabendazole fungicide uptake using Cellana tramoserica shells modified by copper: characterization, adsorption mechanism, and optimization using CCD-RSM approach. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:86020-86035. [PMID: 34490581 DOI: 10.1007/s11356-021-16340-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Accepted: 08/31/2021] [Indexed: 06/13/2023]
Abstract
In this paper, Cellana tramoserica (CT) shells were modified by copper and used as an adsorbent to remove thiabendazole (TBZ) from aqueous media. The removal efficiency of TBZ onto CT shells and modified Cellana tramoserica (CT-Cu) shells was investigated by considering the following parameters: initial pesticide concentration, solution pH, agitation time, temperature, and adsorbent mass. The experimental results show that the pseudo-first-order and Langmuir models well describe the adsorption process. The maximum adsorption amount for CT and CT-Cu is 319.68 mg/g and 376.12 mg/g, respectively. CT-Cu showed higher TBZ removal efficiency than CT, explained by the ligand exchange between the water and the pesticide molecules in the metal coordination sphere. Response surface methodology combined with central composite design (RSM-CCD) was used to optimize the adsorption conditions. Optimized values were obtained at 5 for pH, 50 ppm, 120 min, and 20 mg of CT-Cu adsorbent. Under these optimal conditions, 91% of TBZ was removed by adsorption onto CT-Cu. Graphical abstract.
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Affiliation(s)
- Khalid Aziz
- Laboratory of Biotechnology, Materials and Environment, Faculty of Sciences, Ibn Zohr University, Agadir, Morocco.
| | - Faissal Aziz
- National Center for Research and Studies on Water and Energy (CNEREE), Cadi Ayyad University, B. 511, 40000, Marrakech, Morocco.
| | - Rachid Mamouni
- Laboratory of Biotechnology, Materials and Environment, Faculty of Sciences, Ibn Zohr University, Agadir, Morocco.
| | - Layla Aziz
- Laboratory, Computer Science Department (LAROSERI), Faculty of Sciences, Chouaib Doukkali University, El Jadida, Morocco
| | - Zakaria Anfar
- Laboratory of Materials and Environment, Faculty of Sciences, Ibn Zohr University, Agadir, Morocco
- Institute of Sciences and Materials of Mulhouse - CNRS, Haute Alsace University, Mulhouse, France
| | - Ahmed Azrrar
- Laboratory of Biotechnology, Materials and Environment, Faculty of Sciences, Ibn Zohr University, Agadir, Morocco
| | - Bouthayna Kjidaa
- Laboratory of Biotechnology, Materials and Environment, Faculty of Sciences, Ibn Zohr University, Agadir, Morocco
| | - Nabil Saffaj
- Laboratory of Biotechnology, Materials and Environment, Faculty of Sciences, Ibn Zohr University, Agadir, Morocco
| | - Abdellatif Laknifli
- Laboratory of Biotechnology, Materials and Environment, Faculty of Sciences, Ibn Zohr University, Agadir, Morocco
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11
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Topçu AA. The adsorption performance of magnetic gelatin nanofiber for Orange G removal. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-022-04464-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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12
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Akar T, Can ÜGU, Celik S, Sayin F, Akar ST. A hybrid biocomposite of Thamnidium elegans/olive pomace/chitosan for efficient bioremoval of toxic copper. Int J Biol Macromol 2022; 221:865-873. [PMID: 36063895 DOI: 10.1016/j.ijbiomac.2022.08.207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 08/23/2022] [Accepted: 08/31/2022] [Indexed: 11/05/2022]
Abstract
Immobilized biomaterials have recently attracted researchers' attention in the field of environmental biotechnology due to their effective biosorption performances. In this respect, a novel hybrid biocomposite based on Thamnidium elegans cells, olive pomace, and chitosan (TE-OP@C) was produced and tested for the first time to remove a target pollutant. It was successfully employed to eliminate toxic Cu (II) ions. Uptake efficiency of the biocomposite was significantly greater than that of T. elegans and T. elegans-olive pomace, despite the much lesser amount of biocomposite used. Freundlich model best fitted the equilibrium data, and the pseudo-second-order kinetic model followed uptake. The maximum removal efficiencies in batch and continuous systems were determined to be 96 % and 98 %, respectively. After eight cycles, the biosorption and recovery efficiencies of TE-OP@C were higher than 90 %. Biocomposite was able to remove approximately 90 % and 88 % of Cu(II) from real wastewater in batch and continuous systems, respectively. FTIR analysis, zeta potential measurements, EDX, and SEM findings confirmed the Cu(II) uptake. XRD and BET analysis were also performed for biocomposite characterization. Breakthrough and exhausted points were determined as 80 and 150 min, respectively. The findings potentially lead to a new perspective for the treatment of copper contamination.
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Affiliation(s)
- Tamer Akar
- Eskisehir Osmangazi University, Faculty of Science, Department of Chemistry, TR-26040 Eskisehir, Turkey.
| | - Ümmü Gülsüm Uzunel Can
- Eskisehir Osmangazi University, Graduate School of Natural and Applied Sciences, Department of Chemistry, 26040 Eskisehir, Turkey
| | - Sema Celik
- Eskisehir Osmangazi University, Faculty of Science, Department of Chemistry, TR-26040 Eskisehir, Turkey
| | - Fatih Sayin
- Eskisehir Osmangazi University, Faculty of Science, Department of Chemistry, TR-26040 Eskisehir, Turkey
| | - Sibel Tunali Akar
- Eskisehir Osmangazi University, Faculty of Science, Department of Chemistry, TR-26040 Eskisehir, Turkey
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Wang D, Wu C, Zong Z, Ye J, Wu Q, Li R, Zhou B, Xu H, Cai D. Carbon Nanotubes-Based Fuel Cell for Cr(VI) Removal and Electricity Generation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:9021-9029. [PMID: 35834193 DOI: 10.1021/acs.langmuir.2c01472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
A fuel cell, an energy transducer, can convert chemical energy into electrical energy. In this work, graphite felt (GF) loaded with polypyrrole (PPy) and carboxylic carbon nanotubes (CNTs-COOH) was used as a cathode (GF/PPy/CNTs-COOH) in a double-chamber nonbiofuel cell (D-nBFC) to remove Cr(VI) efficiently. Therein, Na2S2O3 in an alkaline solution and Cr(VI) in a strongly acidic solution were employed as anode and cathode solutions, respectively. An agar salt bridge, consisting of saturated KCl solution, was used to transport ions between the anode and cathode. This system suggested that the removal efficiency of Cr(VI) could reach 99.6%. The maximum current, power, and power density could achieve 136.8 μA, 18.7 μW, and 20.8 mW/m2 at 90 min, respectively. Additionally, GF/PPy/CNTs-COOH also had good electrocatalytic stability and reusability after four cycles, which played an important role in the development of the D-nBFC system. Therefore, this study provides an environmentally friendly and efficient method to remove Cr(VI) and generate electricity simultaneously.
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Affiliation(s)
- Dongfang Wang
- College of Environmental Science and Engineering, Donghua University, Shanghai 201620, People's Republic of China
| | - Chuanxuan Wu
- College of Environmental Science and Engineering, Donghua University, Shanghai 201620, People's Republic of China
| | - Zhiqiang Zong
- College of Environmental Science and Engineering, Donghua University, Shanghai 201620, People's Republic of China
| | - Jinghong Ye
- College of Environmental Science and Engineering, Donghua University, Shanghai 201620, People's Republic of China
| | - Qingchuan Wu
- Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - Ruohan Li
- College of Environmental Science and Engineering, Donghua University, Shanghai 201620, People's Republic of China
| | - Benji Zhou
- College of Environmental Science and Engineering, Donghua University, Shanghai 201620, People's Republic of China
| | - He Xu
- College of Environmental Science and Engineering, Donghua University, Shanghai 201620, People's Republic of China
| | - Dongqing Cai
- College of Environmental Science and Engineering, Donghua University, Shanghai 201620, People's Republic of China
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Imgharn A, Anchoum L, Hsini A, Naciri Y, Laabd M, Mobarak M, Aarab N, Bouziani A, Szunerits S, Boukherroub R, Lakhmiri R, Albourine A. Effectiveness of a novel polyaniline@Fe-ZSM-5 hybrid composite for Orange G dye removal from aqueous media: Experimental study and advanced statistical physics insights. CHEMOSPHERE 2022; 295:133786. [PMID: 35114254 DOI: 10.1016/j.chemosphere.2022.133786] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Revised: 01/05/2022] [Accepted: 01/27/2022] [Indexed: 06/14/2023]
Abstract
A polyaniline@Fe-ZSM-5 composite was synthesized via an in situ interfacial polymerization procedure. The morphology, crystallinity, and structural features of the as-developed PANI@Fe-ZSM-5 composite were assessed using scanning electron microscopy - energy dispersive spectroscopy (SEM-EDS), X-ray diffraction (XRD), Fourier-transform infrared (FTIR) spectroscopy, and X-ray photoelectron spectroscopy (XPS). The composite was efficiently employed for the first time as an adsorbent Orange G (OG) dyestuff from water. The OG dye adsorption performance was investigated as a function of several operating conditions. The kinetic study demonstrated that a pseudo-second-order model was appropriate to anticipate the OG adsorption process. The maximum adsorption capacity was found to be 217 mg/g. The adsorption equilibrium data at different temperatures were calculated via advanced statistical physics formalism. The entropy function indicated that the disorder of OG molecules improved at low concentrations and lessened at high concentrations. The free enthalpy and internal energy functions suggested that the OG adsorption was a spontaneous process and physisorption in nature. Regeneration investigation showed that the PANI@Fe-ZSM-5 could be effectively reused up to five cycles. The main results of this work provided a deep insight on the experimental study supported by advanced statistical physics prediction for the adsorption of Orange G dye onto the novel polyaniline@Fe-ZSM-5 hybrid composite. Additionally, the experimental and advanced statistical physics findings stated in this study may arouse research interest in the field of wastewater treatment.
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Affiliation(s)
- Abdelaziz Imgharn
- Laboratory of Materials and Environment, Faculty of Sciences, Ibn Zohr University, Agadir, Morocco.
| | - Lahoucine Anchoum
- Laboratory of Materials and Environment, Faculty of Sciences, Ibn Zohr University, Agadir, Morocco
| | - Abdelghani Hsini
- Laboratory of Materials and Environment, Faculty of Sciences, Ibn Zohr University, Agadir, Morocco; National HigheNational Higher School of Chemistry (NHSC), University Ibn Tofail, BP. 133-14000, Kenitra, Morocco; Laboratory of Advanced Materials and Process Engineering (LAMPE), Faculty of Science, Ibn Tofail University, BP 133, 14000, Kenitra, Morocco
| | - Yassine Naciri
- Laboratory of Materials and Environment, Faculty of Sciences, Ibn Zohr University, Agadir, Morocco
| | - Mohamed Laabd
- Laboratory of Materials and Environment, Faculty of Sciences, Ibn Zohr University, Agadir, Morocco
| | - Mohamed Mobarak
- Physics Department, Faculty of Science, Beni-Suef University, Beni-Suef, 62511, Egypt
| | - Nouh Aarab
- Laboratory of Materials and Environment, Faculty of Sciences, Ibn Zohr University, Agadir, Morocco
| | - Asmae Bouziani
- Chemical Engineering Department, Middle East Technical University, Ankara, Turkey
| | - Sabine Szunerits
- Univ. Lille, CNRS, Centrale Lille, Univ. Polytechnique Hauts-de-France, UMR 8520 - IEMN, Lille F, 59000, France
| | - Rabah Boukherroub
- Univ. Lille, CNRS, Centrale Lille, Univ. Polytechnique Hauts-de-France, UMR 8520 - IEMN, Lille F, 59000, France
| | - Rajae Lakhmiri
- Laboratory of Chemical Engineering and Valorization Resources, Faculty of Sciences and Techniques, Abdelmalek Essaadi University, Tangier, Morocco
| | - Abdallah Albourine
- Laboratory of Materials and Environment, Faculty of Sciences, Ibn Zohr University, Agadir, Morocco.
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El Gaayda J, Ezzahra Titchou F, Oukhrib R, Karmal I, Abou Oualid H, Berisha A, Zazou H, Swanson C, Hamdani M, Ait Akbour R. Removal of cationic dye from coloured water by adsorption onto hematite-humic acid composite: Experimental and theoretical studies. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.120607] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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16
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Efficient Adsorption Removal of an Anionic Azo Dye by Lignocellulosic Waste Material and Sludge Recycling into Combustible Briquettes. COLLOIDS AND INTERFACES 2022. [DOI: 10.3390/colloids6020022] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In recent years, the removal of dyes has emerged as a significant problem that attracted several researchers. The search for green and eco-friendly adsorbents has been a never-ending task in environmental protection to overcome this issue. Herein, almond shells (AS) were used as an adsorbent to remove methyl orange (MO) from aqueous solutions. The AS was characterized using several techniques such as X-ray diffraction (XRD), scanning electron microscope (SEM), and Fourier transform infrared spectroscopy (FTIR). Adsorption experiments were carried out under different pH, temperature, and AS particle size conditions. Kinetic and isothermal studies revealed that MO adsorption on the AS reached equilibrium at 90 min, following the pseudo-second-order (PSO) kinetic model. The Langmuir adsorption isotherm was found the suitable adsorption model for MO adsorption on AS, showing a maximum adsorption capacity of 15.63 mg/g. Thermodynamic parameters such as the change in standard enthalpy (ΔH°), the change in standard entropy (ΔS°), and the change in standard free energy (ΔG°) indicated that the MO dye adsorption process is non-spontaneous, endothermic, and physical, which was further confirmed from FTIR analysis of AS samples after adsorption. The contaminated sludge was converted into biochar by slow pyrolysis at a temperature of 400 °C for 2 h. Biochar has been exploited for the manufacture of combustible briquettes.
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17
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Atef R, Aboeleneen NM, AbdelMonem NM. Preparation and characterization of low-cost nano-particle material using pomegranate peels for brilliant green removal. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2022; 25:36-46. [PMID: 35369820 DOI: 10.1080/15226514.2022.2056133] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
A low-cost nano-particle material was successfully prepared using waste pomegranate peels. Batch adsorption experiments were carried out to investigate the effect of different operating conditions on the removal of brilliant green (BG) dye from an aqueous solution. SEM images of pomegranate peels nano-particles (PPNP) declared roughness of the surfaces and TEM images indicated a spheroid shape with an average particle size of 37 nm. The specific surface area of the PPNP was 354.46 m2/g and the particle size had a mean diameter of 613.4 nm. The active nano-particle suspension showed a net negative charge (-29 mV) at natural pH. The XRD pattern of PPNP displayed an average crystallite size of 13.50 nm and EDS analysis shows that the PPNP consists of 83% carbon. The experimental work showed that the removal of BG had optimum removal efficiency at 20 min, 0.3 g adsorbent mass, 25 °C, and pH 8. The kinetic data can be described well with the pseudo-second-order model and the isotherm data was found to fit the Dubinin model. The thermodynamic study proved that BG adsorption on PPNP was physisorption (ΔG = -5.949 kJ/mol) and spontaneous at low temperature (ΔH = -17.193 kJ/mol, ΔS = -0.0382 kJ/mol. k)This study used an agriculture waste (pomegranate peels) to prepare an environmentally friendly and low-cost adsorbent within the nano-scale by thermal activation. The nano-particles prepared were shown to be a promising adsorbent, demonstrating high surface area and well-developed porosity. The prepared adsorbent will have a great impact on wastewater treatment technology and possible applications at a large scale.
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Affiliation(s)
- Riham Atef
- Chemical Engineering Department, The High Institute of Engineering and Technology, New Damietta, Damietta Egypt
| | - N M Aboeleneen
- Faculty of Engineering, Chemical Engineering Department, Cairo University, Cairo, Egypt
| | - Nabil M AbdelMonem
- Faculty of Engineering, Chemical Engineering Department, Cairo University, Cairo, Egypt
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Naciri Y, Hsini A, Bouziani A, Tanji K, El Ibrahimi B, Ghazzal MN, Bakiz B, Albourine A, Benlhachemi A, Navío JA, Li H. Z-scheme WO 3/PANI heterojunctions with enhanced photocatalytic activity under visible light: A depth experimental and DFT studies. CHEMOSPHERE 2022; 292:133468. [PMID: 34974036 DOI: 10.1016/j.chemosphere.2021.133468] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 12/12/2021] [Accepted: 12/27/2021] [Indexed: 06/14/2023]
Abstract
A WO3@PANI heterojunction photocatalyst with a various mass ratio of polyaniline to WO3 was obtained via the in situ oxidative deposition polymerization of aniline monomer in the presence of WO3 powder. The characterization of WO3@PANI composites was carried via X-ray diffraction (XRD), scanning electron microscopy (SEM-EDS), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FT-IR), ultraviolet-visible diffuse reflection spectroscopy (DRS), X-ray photoelectron spectroscopy (XPS) and photoluminescence spectroscopy (PL). The photocatalytic efficiency of WO3@PANI photocatalysts was assessed by following the decomposition of the Rhodamine B (RhB) dye under visible light irradiation (λ >420 nm). The results evidenced the high efficiency of the WO3@PANI (0.5 wt %) nanocomposite in the photocatalytic degradation of RhB (90% within 120 min) under visible light irradiation 3.6 times compared to pure WO3. The synergistic effect between PANI and WO3 is the reason for the increased photogenerated carrier separation. The superior photocatalytic performance of the WO3@PANI catalyst was ascribed to the increased visible light in the visible range and the efficient charge carrier separation. Furthermore, the Density Functional Theory study (DFT) of WO3@PANI was performed at the molecular level, to find its internal nature for the tuning of photocatalytic efficiency. The DFT results indicated that the chemical bonds connected the solid-solid contact interfaces between WO3 and PANI. Finally, a plausible photocatalytic mechanism of WO3@PANI (0.5 wt %) performance under visible light illumination is suggested to guide additional photocatalytic activity development.
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Affiliation(s)
- Y Naciri
- Laboratoire Matériaux et Environnement LME, Faculté des Scienc"es, Université Ibn Zohr, BP 8106, Cité Dakhla, Agadir, Morocco; Institute for Energy Research, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, 212013, PR China.
| | - A Hsini
- Laboratoire Matériaux et Environnement LME, Faculté des Scienc"es, Université Ibn Zohr, BP 8106, Cité Dakhla, Agadir, Morocco
| | - A Bouziani
- Chemical Engineering Department, Middle East Technical University, Ankara, Turkey
| | - K Tanji
- Laboratoire de Catalyse, Matériaux et Environnement (LCME), Université Sidi Mohammed Ben Abdellah, Fès, Route d'Imouzzer, BP 2427, Fès, Morocco
| | - B El Ibrahimi
- Faculty of Applied Sciences, Ibn Zohr University, 86153, Aït Melloul, Morocco; Applied Chemistry-Physic Team, Faculty of Sciences, University of Ibn Zohr, Agadir, Morocco
| | - M N Ghazzal
- Institut de Chimie Physique (ICP), UMR-8000 CNRS/Université Paris-Saclay, Bâtiment 349, 91405, Orsay, France.
| | - B Bakiz
- Laboratoire Matériaux et Environnement LME, Faculté des Scienc"es, Université Ibn Zohr, BP 8106, Cité Dakhla, Agadir, Morocco
| | - A Albourine
- Laboratoire Matériaux et Environnement LME, Faculté des Scienc"es, Université Ibn Zohr, BP 8106, Cité Dakhla, Agadir, Morocco
| | - A Benlhachemi
- Laboratoire Matériaux et Environnement LME, Faculté des Scienc"es, Université Ibn Zohr, BP 8106, Cité Dakhla, Agadir, Morocco
| | - J A Navío
- Instituto de Ciencia de Materiales de Sevilla, Centro Mixto Universidad de Sevilla-CSIC, Américo Vespucio 49, 41092, Sevilla, Spain.
| | - H Li
- Institute for Energy Research, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, 212013, PR China
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Ding W. Bridging-induced densification strategy based on biomass-derived aldehyde tanning integrated with terminal Al(III) crosslinking towards high-performance chrome-free leather production. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 307:114554. [PMID: 35066203 DOI: 10.1016/j.jenvman.2022.114554] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 01/01/2022] [Accepted: 01/15/2022] [Indexed: 06/14/2023]
Abstract
Chrome-free leather manufacturing has been acknowledged as a desirable option to eliminate potential environmental and human health risks of conventional chrome tanning. This work applied a sequential bridging-induced densification strategy to produce high-performance chrome-free leather with high crosslinking density derived from the biomass-derived aldehyde (BAT) crosslinking (BAT tanning of leather), followed by terminal Al(III) crosslinking (TAC). The TAC conditions for BAT tanned leather were optimized and the results suggested that the optimized conditions were as follows: the fixation pH was 4.2, the pre-penetration time was 180 min, the fixation temperature was 40 °C, and the dosage of the aluminum tanning agent (ATA) was 0.5% (based on Al2O3). Under the optimized conditions, the resultant BAT-TAC crust leather exhibited favorable overall performances compared with BAT crust leather in terms of higher hydrothermal stability, mechanical strengths, more pleasant uniform color, and comparable smooth grain surface. The obtained high-performance chrome-free leather is scalable, providing an avenue for designing and rationalizing other engineering technology towards high-performance eco-leather production.
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Affiliation(s)
- Wei Ding
- China Leather and Footwear Research Institute Co. Ltd., Beijing, 100015, PR China; Key Laboratory of Leather and Footwear Green Manufacturing Technology of China Light Industry, Beijing, 100015, PR China.
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20
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Application of Activated Carbon Adsorbents Prepared from Prickly Pear Fruit Seeds and a Conductive Polymer Matrix to Remove Congo Red from Aqueous Solutions. FIBERS 2022. [DOI: 10.3390/fib10010007] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The present work was aimed to evaluate the adsorption properties of activated carbons based on prickly pear seeds (PPS) and conductive polymer matrix based on polyaniline (PANI) for the removal of anionic Congo red (CR) dye from aqueous solutions. The adsorbent was prepared by polymerization of aniline in the presence of activated PPS by phosphoric acid and sodium hydroxide. The samples were characterized using X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), Fourier-transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA) and the Brunauer–Emmett–Teller (BET) methods. The adsorption kinetics were studied using UV-visible (UV/Vis) spectroscopy. The characterization data suggest that the adsorption of the Congo red dye is enhanced because PANI chain molecules, which are especially accountable for removal through π–π interaction and H–bonding with the CR, are adsorbed/tethered onto the acid-activated PPS (PPSH), and thus surmount the mass transfer limitation by being best exposed to the CR-adsorbed molecule. The adsorption kinetics follows the pseudo-second order process. The correlation coefficients (R2) for Langmuir, Freundlich and Tempkin showed that the adsorption values obey Freundlich and Tempkin isotherm models. Moreover, the isotherm was most accurately described by the Freundlich model, and the maximum removal percentage was calculated to be 91.14% under optimized conditions of pH 6.6, 1 g/L of adsorbent dosage, and an initial CR dye concentration of 20 mg·L−1. Importantly, the hybrid adsorbent exhibited the highest adsorption capacity (80.15%) after five cycles of the adsorption–desorption process. Thermodynamic parameters, such as entropy changes, enthalpy changes and Gibbs free energy, were also evaluated. These results indicated that the PANI matrix can generally be better utilized for the removal of Congo red dye when appropriately dispersed on the surface of suitable support materials. These results provide a new direction to promote the separable adsorbents with increasing performance for adsorption of dye impurities from wastewater.
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Aziz K, Aziz F, Mamouni R, Aziz L, Saffaj N. Engineering of highly Brachychiton populneus shells@polyaniline bio-sorbent for efficient removal of pesticides from wastewater: Optimization using BBD-RSM approach. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.117092] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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22
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Ait Haki M, Imgharn A, Aarab N, Hsini A, Essekri A, Laabd M, El Jazouli H, Elamine M, Lakhmiri R, Albourine A. Efficient removal of crystal violet dye from aqueous solutions using sodium hydroxide-modified avocado shells: kinetics and isotherms modeling. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2022; 85:433-448. [PMID: 35050894 DOI: 10.2166/wst.2021.451] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The main objective of this study is to optimize a new composite for the depollution of contaminated water. The sodium hydroxide-modified avocado shells (NaOH-AS) were firstly prepared, characterized by field-emission-scanning-electron-microscopy (FE-SEM), X-ray energy dispersive spectroscopy (EDS) and Fourier transforms infrared (FT-IR) spectroscopy, and applied for efficient removal of crystal violet dye (CV) in wastewater. In addition, the adsorption in a batch system of CV dye on the NaOH-AS material was studied. Therefore, we accomplished a parametric study of the adsorption by studying the effect of several important parameters on the decolorizing power of the used material, namely, initial pH, contact time, initial CV dye concentration, temperature, and the ionic strength effect on the CV dye adsorption process were systematically assessed. The highest adsorption efficiency of CV dye (>96.9%) by NaOH-AS was obtained at pH >8. The pseudo-second-order kinetic model gave the best description of the adsorption kinetic of CV dye on the AS and NaOH-AS adsorbents. In addition, the mass transfer of CV dye molecules from the solution to the adsorbent surface occurred in three sequential stages (boundary layer diffusion, intraparticle diffusion and adsorption equilibrium). The adsorption isotherm data were best fitted with the Freundlich model. The adsorption capacity of AS increased from 135.88 to 179.80 mg g-1 after treatment by 1 M NaOH. The thermodynamic study showed that CV dye adsorption onto NaOH-AS was an exothermic and feasible process. The electrostatic interactions acted as the only forces governing the CV adsorption mechanism. The NaOH-AS demonstrated a satisfactory reusability. Therefore, we can state that the as-developed NaOH-AS material has a potential application prospect as an efficient adsorbent for CV dye from wastewaters.
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Affiliation(s)
- Mohamed Ait Haki
- Laboratory of Materials and Environment, Faculty of Sciences, Ibn Zohr University, Agadir BP 8106, Morocco E-mail:
| | - Abdelaziz Imgharn
- Laboratory of Materials and Environment, Faculty of Sciences, Ibn Zohr University, Agadir BP 8106, Morocco E-mail:
| | - Nouh Aarab
- Laboratory of Materials and Environment, Faculty of Sciences, Ibn Zohr University, Agadir BP 8106, Morocco E-mail:
| | - Abdelghani Hsini
- Laboratory of Materials and Environment, Faculty of Sciences, Ibn Zohr University, Agadir BP 8106, Morocco E-mail:
| | - Abdelillah Essekri
- Laboratory of Materials and Environment, Faculty of Sciences, Ibn Zohr University, Agadir BP 8106, Morocco E-mail:
| | | | - Habiba El Jazouli
- Laboratory of Materials and Environment, Faculty of Sciences, Ibn Zohr University, Agadir BP 8106, Morocco E-mail:
| | - Maria Elamine
- Laboratory of Materials and Environment, Faculty of Sciences, Ibn Zohr University, Agadir BP 8106, Morocco E-mail:
| | - Rajae Lakhmiri
- Laboratory of Chemical Engineering and Resource Development, Faculty of Sciences and Techniques, Abdelmalek Essaâdi University, Tangier, Morocco
| | - Abdallah Albourine
- Laboratory of Materials and Environment, Faculty of Sciences, Ibn Zohr University, Agadir BP 8106, Morocco E-mail:
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Preparation and Characterization of a Novel Activated Carbon@Polyindole Composite for the Effective Removal of Ionic Dye from Water. Polymers (Basel) 2021; 14:polym14010003. [PMID: 35012027 PMCID: PMC8747591 DOI: 10.3390/polym14010003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Revised: 12/04/2021] [Accepted: 12/16/2021] [Indexed: 11/25/2022] Open
Abstract
The present study is aimed at the synthesis and exploring the efficiency of a novel activated carbon incorporated polyindole (AC@PIN) composite for adsorptive removal of Malachite Green (MG) dye from aqueous solution. An AC@PIN hybrid material was prepared by in situ chemical oxidative polymerization. The physico-chemical characteristics of the AC@PIN composite were assessed using Fourier-transform infrared spectrometer, X-ray diffraction, scanning electron microscopy, energy dispersive X-ray spectroscopy, ultraviolet visible spectroscopy, and determination of point of zero charge (pHPZC). A series of adsorption studies was conducted to evaluate the influence of operational parameters such as pH, contact time, initial dye concentration, AC@PIN dosage, and temperature on dye adsorption behavior of developed composite. A maximum dye removal percentage (97.3%) was achieved at the pH = 10, AC@PIN dosage = 6.0 mg, initial dye concentration 150 mg L−1, and temperature = 20 °C. The kinetic studies demonstrated that the adsorption of MG on AC@PIN followed pseudo-second-order model (R2 ≥ 0.99). Meanwhile, Langmuir isotherm model was founded to be the best isotherm model to describe the adsorption process. Finally, the recyclability test revealed that the composite exhibits good recycle efficiency and is stable after 5 cycles. The obtained results suggest that AC@PIN composite could be a potential candidate for the removal of MG from wastewater.
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Wang Y, Fang S, Wang X, Wang Y, Xiong Y, Duan M. Synthesis of a novel reverse demulsifier with the characteristics of polyacrylate and polycation and its demulsification performance. J Appl Polym Sci 2021. [DOI: 10.1002/app.51200] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yifan Wang
- College of Chemistry and Chemical Engineering Southwest Petroleum University Chengdu China
| | - Shenwen Fang
- College of Chemistry and Chemical Engineering Southwest Petroleum University Chengdu China
| | - Xiujun Wang
- Beijing Research Center China National Offshore Oil Corporation Beijing China
- EOR Research Center State Key Laboratory of Offshore Oilfield Exploitation Beijing China
| | - Yongjun Wang
- Oilfield Chemicals R&D Center CNOOC(Tianjin) Oilfield Chemical Co., Ltd Tianjin China
| | - Yan Xiong
- College of Chemistry and Chemical Engineering Southwest Petroleum University Chengdu China
| | - Ming Duan
- College of Chemistry and Chemical Engineering Southwest Petroleum University Chengdu China
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25
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Brini L, Hsini A, Naciri Y, Bouziani A, Ajmal Z, H'Maida K, Boulahya A, Arahou M, Bakiz B, Albourine A, Fekhaoui M. Synthesis and characterization of arginine-doped heliotrope leaves with high clean-up capacity for crystal violet dye from aqueous media. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2021; 84:2265-2277. [PMID: 34810310 DOI: 10.2166/wst.2021.446] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
A novel arginine-modified Heliotrope leaf (Arg@HL) was used as adsorbent for the crystal violet (CV) dye adsorption in a batch process. The physicochemical and morphological composition of Arg@HL were characterized by field-emission scanning electron microscopy (FE-SEM), Fourier transform infrared (FTIR) spectroscopy, thermogravimetric analysis (TGA), and differential scanning calorimetry (DSC). The experiments were carried out to investigate the factors that influence the dye uptake by the adsorbent, such as the contact time under agitation, adsorbent amount, initial dye concentration, temperature and pH of dye solution. The optimum conditions of adsorption were found on the batch scale as followed: CV concentration of 20 mg·L-1, an amount of 0.75 g·L-1 of the adsorbent, 90 min contact time, 6 pH and 25 °C temperature for Arg@HL. The results confirmed a second-order model explaining the dye crystal violet's adsorption's kinetics by Arg-Heliotrope leaves. The Langmuir model effectively defines the adsorption isotherms. The results revealed that the Arg@HL has the potential to be used as a low-cost adsorbent for the removal of CV dye from aqueous solutions.
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Affiliation(s)
- Lahoucine Brini
- Laboratory of Animal Zoology and Ecology, Scientific Institute, Mohammed V University, Rabat, Morocco E-mail:
| | - Abdelghani Hsini
- Laboratory of Materials and Environment, Faculty of Sciences, Ibn Zohr University, Agadir, Morocco
| | - Yassine Naciri
- Laboratory of Materials and Environment, Faculty of Sciences, Ibn Zohr University, Agadir, Morocco
| | - Asmae Bouziani
- Chemical Engineering Department, Middle East Technical University, Ankara, Turkey
| | - Zeeshan Ajmal
- College of Engineering, China Agricultural University, Beijing 100083, China
| | - Khalihana H'Maida
- Laboratory of Animal Zoology and Ecology, Scientific Institute, Mohammed V University, Rabat, Morocco E-mail:
| | - Aziz Boulahya
- Laboratory of Animal Zoology and Ecology, Scientific Institute, Mohammed V University, Rabat, Morocco E-mail:
| | - Mohamed Arahou
- Laboratory of Animal Zoology and Ecology, Scientific Institute, Mohammed V University, Rabat, Morocco E-mail:
| | - Bahcine Bakiz
- Laboratory of Materials and Environment, Faculty of Sciences, Ibn Zohr University, Agadir, Morocco
| | - Abdallah Albourine
- Laboratory of Materials and Environment, Faculty of Sciences, Ibn Zohr University, Agadir, Morocco
| | - Mohammed Fekhaoui
- Laboratory of Animal Zoology and Ecology, Scientific Institute, Mohammed V University, Rabat, Morocco E-mail:
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26
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Hsini A, Naciri Y, Bouziani A, Aarab N, Essekri A, Imgharn A, Laabd M, Navío JA, Puga F, Lakhmiri R, Albourine A. Polyaniline coated tungsten trioxide as an effective adsorbent for the removal of orange G dye from aqueous media. RSC Adv 2021; 11:31272-31283. [PMID: 35496861 PMCID: PMC9041320 DOI: 10.1039/d1ra04135e] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Accepted: 09/13/2021] [Indexed: 11/29/2022] Open
Abstract
In this work, the core–shell PANI@WO3 composite was obtained from the reaction of aniline monomer polymerization with WO3 particles; sodium persulfate was used as an oxidant. Various analytical techniques such as scanning electron microscopy (SEM-EDS), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), Brunauer–Emmett–Teller (BET), and X-ray photoelectron spectroscopy (XPS) were used to characterize the as-prepared PANI@WO3 adsorbent, which well confirmed that the WO3 particles were coated by polyaniline polymer. The PANI@WO3 composite was tested as an adsorbent to remove reactive orange G (OG) for the first time. pH, adsorbent dose, contact time, initial dye concentration, and temperature were systematically investigated in order to study their effect on the adsorption process. The experimental findings showed that the PANI@WO3 composite has considerable potential to remove an aqueous OG dye. Langmuir and Freundlich's models were used to analyze the equilibrium isotherms of OG dye adsorption on the PANI@WO3 composite. As a result, the best correlation of the experimental data was provided by the Langmuir model, and the maximum capacity of adsorption was 226.50 mg g−1. From a thermodynamic point of view, the OG dye adsorption process occurred spontaneously and endothermically. Importantly, PANI@WO3 still exhibited an excellent adsorption capability after four regeneration cycles, indicating the potential reusability of the PANI@WO3 composite. These results indicate that the as prepared PANI@WO3 composite could be employed as an efficient adsorbent and was much better than the parent material adsorption of OG dye. In this work, the core–shell PANI@WO3 composite was obtained from the reaction of aniline monomer polymerization with WO3 particles; sodium persulfate was used as an oxidant.![]()
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Affiliation(s)
- Abdelghani Hsini
- Laboratory of Materials and Environment, Faculty of Sciences, Ibn Zohr University Agadir Morocco
| | - Yassine Naciri
- Laboratory of Materials and Environment, Faculty of Sciences, Ibn Zohr University Agadir Morocco
| | - Asmae Bouziani
- Chemical Engineering Department, Middle East Technical University Ankara Turkey
| | - Nouh Aarab
- Laboratory of Materials and Environment, Faculty of Sciences, Ibn Zohr University Agadir Morocco
| | - Abdelilah Essekri
- Laboratory of Materials and Environment, Faculty of Sciences, Ibn Zohr University Agadir Morocco
| | - Abdelaziz Imgharn
- Laboratory of Materials and Environment, Faculty of Sciences, Ibn Zohr University Agadir Morocco
| | - Mohamed Laabd
- Laboratory of Materials and Environment, Faculty of Sciences, Ibn Zohr University Agadir Morocco
| | - J A Navío
- Instituto de Ciencia de Materiales de Sevilla, Centro Mixto Universidad de Sevilla-CSIC Américo Vespucio 49 41092 Sevilla Spain
| | - F Puga
- Instituto de Ciencia de Materiales de Sevilla, Centro Mixto Universidad de Sevilla-CSIC Américo Vespucio 49 41092 Sevilla Spain
| | - Rajae Lakhmiri
- Laboratory of Chemical Engineering and Valorization Resources, Faculty of Sciences and Techniques, Abdelmalek Essaadi University Tangier Morocco
| | - Abdallah Albourine
- Laboratory of Materials and Environment, Faculty of Sciences, Ibn Zohr University Agadir Morocco
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27
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Imgharn A, ighnih H, Hsini A, Naciri Y, Laabd M, Kabli H, Elamine M, Lakhmiri R, Souhail B, Albourine A. Synthesis and characterization of polyaniline-based biocomposites and their application for effective removal of Orange G dye using adsorption in dynamic regime. Chem Phys Lett 2021. [DOI: 10.1016/j.cplett.2021.138811] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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28
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Isam Bakr Albaker R, Kocaman S, Marti ME, Ahmetli G. Application of various carboxylic acids modified walnut shell waste as natural filler for epoxy‐based composites. J Appl Polym Sci 2021. [DOI: 10.1002/app.50770] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
| | - Suheyla Kocaman
- Department of Chemical Engineering Selçuk University Konya Turkey
- Department of Chemical Engineering Konya Technical University Konya Turkey
| | - Mustafa Esen Marti
- Department of Chemical Engineering Selçuk University Konya Turkey
- Department of Chemical Engineering Konya Technical University Konya Turkey
| | - Gulnare Ahmetli
- Department of Chemical Engineering Selçuk University Konya Turkey
- Department of Chemical Engineering Konya Technical University Konya Turkey
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29
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Zhao X, Pionteck J. Electrochemical performance of polydopamine modified
PANI
/
rGO
composites: Dependency on preparation sequence. J Appl Polym Sci 2021. [DOI: 10.1002/app.50663] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Xueyan Zhao
- Institute of Chemical Materials China Academy of Engineering Physics Mianyang China
- Institute Macromolecular Chemistry, Department Nanofunctional Composites and Blends Leibniz Institute of Polymer Research Dresden Dresden Germany
| | - Jürgen Pionteck
- Institute Macromolecular Chemistry, Department Nanofunctional Composites and Blends Leibniz Institute of Polymer Research Dresden Dresden Germany
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30
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Elias E, Sarathchandran C, Joseph S, Zachariah AK, Thomas J, Devadasan D, G. Souza F, Thomas S. Photoassisted degradation of rhodamine B using poly(
ε
‐caprolactone) based nanocomposites: Mechanistic and kinetic features. J Appl Polym Sci 2021. [DOI: 10.1002/app.50612] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Eldho Elias
- School of Chemical Sciences Mahatma Gandhi University Kottayam Kerala India
| | - C. Sarathchandran
- Department of Science, Amrita School of Engineering Amrita Vishwa Vidyapeetham Chennai India
| | - Saju Joseph
- International and Interuniversity Centre for Nanoscience and Nanotechnology Mahatma Gandhi University Kottayam Kerala India
| | - Ajesh K. Zachariah
- Post Graduate and Research Department of Chemistry Mar Thoma College Tiruvalla Kerala India
| | - Jince Thomas
- International and Interuniversity Centre for Nanoscience and Nanotechnology Mahatma Gandhi University Kottayam Kerala India
| | - Dineep Devadasan
- School of Environmental Sciences Mahatma Gandhi University Kottayam Kerala India
| | - Fernando G. Souza
- Programa de Engenharia Civil, COPPE Universidade Federal de Rio de Janeiro, Centro de Tecnologia – Cidade Universitaria, av. Horacio Macedo Rio de Janeiro Brazil
| | - Sabu Thomas
- School of Chemical Sciences Mahatma Gandhi University Kottayam Kerala India
- International and Interuniversity Centre for Nanoscience and Nanotechnology Mahatma Gandhi University Kottayam Kerala India
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31
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Zhang J, Wang Z, Liu L, Hu B, Zhao Y, Zhao S, Zhao W, Li S, Chen X, Hai X. Bi
4
O
5
BrI Solid Solution towards Boosted Photocatalytic Reduction and Oxidation Activities Induced by Efficient Carrier Separation. CRYSTAL RESEARCH AND TECHNOLOGY 2021. [DOI: 10.1002/crat.202000240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jia Zhang
- Department of Pharmacy The First Affiliated Hospital of Harbin Medical University Harbin 150001 P. R. China
| | - Zhen Wang
- Department of Pharmacy Intravenous Admixture Service The First Affiliated Hospital of Harbin Medical University Harbin 150001 P. R. China
| | - Lu Liu
- Department of Pharmacy The First Affiliated Hospital of Harbin Medical University Harbin 150001 P. R. China
| | - Baorong Hu
- Department of Pharmacy The First Affiliated Hospital of Harbin Medical University Harbin 150001 P. R. China
| | - Yilei Zhao
- Department of Pharmacy The First Affiliated Hospital of Harbin Medical University Harbin 150001 P. R. China
| | - Shuang Zhao
- Department of Pharmacy The First Affiliated Hospital of Harbin Medical University Harbin 150001 P. R. China
| | - Wenting Zhao
- Department of Pharmacy The First Affiliated Hospital of Harbin Medical University Harbin 150001 P. R. China
| | - Shuang Li
- Department of Pharmacy The First Affiliated Hospital of Harbin Medical University Harbin 150001 P. R. China
| | - Xi Chen
- Department of Pharmacy The First Affiliated Hospital of Harbin Medical University Harbin 150001 P. R. China
| | - Xin Hai
- Department of Pharmacy The First Affiliated Hospital of Harbin Medical University Harbin 150001 P. R. China
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32
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Cao X, Liu X, Liu Y, Ma R, Sun S. The effect of curvature on chondrocytes migration and bone mesenchymal stem cells differentiation. J Appl Polym Sci 2021. [DOI: 10.1002/app.50392] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Xing Cao
- College of Chemistry and Environmental Engineering Shenzhen University Shenzhen China
| | - Xiangli Liu
- Shenzhen Engineering Laboratory of Aerospace Detection and Imaging, Department of Materials Science and Engineering Harbin Institute of Technology (Shenzhen) Shenzhen China
| | - Yan Liu
- College of Chemistry and Environmental Engineering Shenzhen University Shenzhen China
| | - Rui Ma
- College of Chemistry and Environmental Engineering Shenzhen University Shenzhen China
| | - Shichang Sun
- College of Chemistry and Environmental Engineering Shenzhen University Shenzhen China
- Research Center for Water Science and Environmental Engineering Shenzhen University Shenzhen China
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33
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Use of Natural Clinoptilolite in the Preparation of an Efficient Adsorbent for Ciprofloxacin Removal from Aqueous Media. MINERALS 2021. [DOI: 10.3390/min11050518] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
The adsorption of the antibiotic ciprofloxacin (CIP) from an aqueous solution by natural zeolite, the calcium-rich clinoptilolite (CLI), and magnetite-coated CLI (MAG-CLI) was investigated. Both CLI and MAG-CLI showed a high adsorption affinity towards CIP at 283, 288 and 293 K at a pH of 5. Adsorption kinetics studied for the initial concentrations of 15–75 mg CIP dm−3 follow Lagergren’s pseudo-second order equation and the adsorption is best represented by the Langmuir model. The adsorption mechanism involves strong electrostatic interactions between negatively charged aluminosilicate lattice and the cationic form of CIP accompanied by an ion-exchange reaction. Magnetite coverage (approx. 12 wt.%) induces magnetism, which can facilitate the separation process. The coverage does not influence the adsorption activity of CLI. The leaching test showed that the MAG coating protects the adsorbent from CIP leaching. This is ascribed to interactions between the CIP carboxyl groups and magnetite nano-particles. Antibacterial tests showed strong antibacterial activity of the ciprofloxacin-containing adsorbents towards pathogenic E. coli and S. aureus.
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34
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Hsini A, Benafqir M, Naciri Y, Laabd M, Bouziani A, Ez-zahery M, Lakhmiri R, Alem NE, Albourine A. Synthesis of an arginine-functionalized polyaniline@FeOOH composite with high removal performance of hexavalent chromium ions from water: Adsorption behavior, regeneration and process capability studies. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126274] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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35
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Nawaz A, Ur Rehman MA. Chitosan/gelatin‐based bioactive and antibacterial coatings deposited via electrophoretic deposition. J Appl Polym Sci 2021. [DOI: 10.1002/app.50220] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Aneeqa Nawaz
- Department of Materials Science and Engineering Institute of Space Technology Islamabad Islamabad Pakistan
| | - Muhammad Atiq Ur Rehman
- Department of Materials Science and Engineering Institute of Space Technology Islamabad Islamabad Pakistan
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36
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Yin Y, Xu G, Li L, Qiao C, Xiao Y, Ma T, Liu C. Removal of inorganic arsenic from aqueous solution by Fe-modified ceramsite: batch studies and remediation trials. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2021; 83:1522-1534. [PMID: 33843740 DOI: 10.2166/wst.2021.076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
During sediment remediation, adsorbent addition is an effective technology for the removal of contaminants but the cost is often high. In this study, a low-cost adsorbent, ceramsite, made from contaminated riverbed sediment was synthesized. The Fe-modified ceramsite (FMC) was used as adsorbent to remove arsenate from aqueous solutions and reduce the inorganic arsenic release from contaminated sediments. Kinetic studies showed that chemisorption mainly governed the adsorption process while batch studies yielded the theoretical adsorption capacity for arsenate of 10.63 mg/g at pH = 7 condition. Co-existing anions and pH have no significant impact on the adsorption process. In the regeneration studies, 91, 86, and 80% of the adsorption capacity were recovered in 3 cycles. In-situ remediation trials revealed that the addition of the adsorbent to sediment surface significantly reduced the release of inorganic arsenic into aqueous system, with a reduction efficiency of 86%. Furthermore, the species of the arsenic in the surface layer was significantly inactivated from an active state to a stable state. These findings highlight the application of the FMC as a facile and cost-effective adsorbent for containment of arsenic in solutions and sediments, demonstrating that they are highly applicable for practical cases.
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Affiliation(s)
- Yue Yin
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao, Shandong Province 266033, China E-mail:
| | - Gaoyang Xu
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao, Shandong Province 266033, China E-mail:
| | - Linlin Li
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao, Shandong Province 266033, China E-mail:
| | - Chunlei Qiao
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao, Shandong Province 266033, China E-mail:
| | - Yihua Xiao
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao, Shandong Province 266033, China E-mail:
| | - Tao Ma
- Shandong Huankeyuan Environmental Engineering Co., Ltd., Jinan, Shandong Province 250013, China
| | - Changqing Liu
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao, Shandong Province 266033, China E-mail:
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37
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Qu X, Lin J, Chaudhary JP, Sun B, Wei F, Fan M, Sun D. Defect enrich ultrathin TiO 2 nanosheets for rapid adsorption and visible light mediated PPCPs degradation. CHEMOSPHERE 2021; 268:128782. [PMID: 33168288 DOI: 10.1016/j.chemosphere.2020.128782] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 10/19/2020] [Accepted: 10/25/2020] [Indexed: 05/20/2023]
Abstract
Recently, PPCPs have attracted extensive attention as emerging pollutants. Due to the strong hydrophilicity and small molecular weight, PPCPs are difficult to be fully removed by adsorption and other processes, posing a serious threat to the ecological environment. Here, we demonstrate solvothermal synthesis of defect enrich TiO2 nanosheets through simple copper doping. Novel TiO2 nanosheets were found to be mesoporous with high specific surface area and exhibited excellent visible light response. Performance of the developed TiO2 nanosheets were evaluated towards photocatalytic degradation of two model pollutants, tetracycline and acetaminophen. Results showed robust degradation of tetracycline and acetaminophen under visible-light irradiation within 100 min. Meanwhile, the potential relationship between the structural characteristics and excellent ability of the catalyst was discussed, as well as probable mechanism. Additionally, a study on the toxicity of tetracycline solution to human skin epidermal cells showed that the toxicity of the treated solution to cells is greatly reduced. The prepared catalysts show good repeatability (a slightly decrease ca.3% after 5 cycles) and applicability, providing a reasonable design for water remediation.
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Affiliation(s)
- Xiao Qu
- Institute of Chemicobiology and Functional Materials, Key Laboratory for Soft Chemistry and Functional Materials of Ministry Education, School of Chemical Engineering, Nanjing University of Science and Technology, 200 Xiao Ling Wei Street, Nanjing, 210094, Jiangsu Province, China
| | - Jianbin Lin
- Institute of Chemicobiology and Functional Materials, Key Laboratory for Soft Chemistry and Functional Materials of Ministry Education, School of Chemical Engineering, Nanjing University of Science and Technology, 200 Xiao Ling Wei Street, Nanjing, 210094, Jiangsu Province, China
| | - Jai Prakash Chaudhary
- Institute of Chemicobiology and Functional Materials, Key Laboratory for Soft Chemistry and Functional Materials of Ministry Education, School of Chemical Engineering, Nanjing University of Science and Technology, 200 Xiao Ling Wei Street, Nanjing, 210094, Jiangsu Province, China
| | - Bianjing Sun
- Institute of Chemicobiology and Functional Materials, Key Laboratory for Soft Chemistry and Functional Materials of Ministry Education, School of Chemical Engineering, Nanjing University of Science and Technology, 200 Xiao Ling Wei Street, Nanjing, 210094, Jiangsu Province, China
| | - Feng Wei
- Institute of Chemicobiology and Functional Materials, Key Laboratory for Soft Chemistry and Functional Materials of Ministry Education, School of Chemical Engineering, Nanjing University of Science and Technology, 200 Xiao Ling Wei Street, Nanjing, 210094, Jiangsu Province, China
| | - Mengmeng Fan
- Nanjing Forestry University, College of Chemical Engineering, Nanjing, 210037, China.
| | - Dongping Sun
- Institute of Chemicobiology and Functional Materials, Key Laboratory for Soft Chemistry and Functional Materials of Ministry Education, School of Chemical Engineering, Nanjing University of Science and Technology, 200 Xiao Ling Wei Street, Nanjing, 210094, Jiangsu Province, China.
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38
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Senguttuvan S, Senthilkumar P, Janaki V, Kamala-Kannan S. Significance of conducting polyaniline based composites for the removal of dyes and heavy metals from aqueous solution and wastewaters - A review. CHEMOSPHERE 2021; 267:129201. [PMID: 33338713 DOI: 10.1016/j.chemosphere.2020.129201] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 12/02/2020] [Accepted: 12/02/2020] [Indexed: 06/12/2023]
Abstract
Dyes and heavy metals pollution have become a major environmental concern worldwide. Various methods, such as advanced oxidation, biodegradation, precipitation, flocculation, ultra filtration, ion-exchange, electro-chemical degradation and coagulation, have been proposed for the removal of dyes and heavy metals from contaminated wastewater. Of these methods, adsorption and detoxification are considered as the most promising and economically viable. Polyaniline-based composites, a material prepared by combining polyaniline with one or more similar or disimilar materials, have been reported as good adsorbents to remove and detoxify different groups of pollutants due to their unique physical and chemical properties. In the last decade, several studies have reported the effective adsorption (∼95%) of dyes and heavy metals onto polyaniline based composites. Furthermore, some polyaniline -composites reduced the adsorbed heavy metals into less toxic state. This review compiles the application of different polyaniline composites for adsorption and/or detoxifcation of dyes and heavy metals and documents composite preparation methods, morphology and properties of the composites, and mechanism of dyes and heavy metals adsorption. Based on the avilabile literature, this review suggests that more studies are warranted to understand the influence of various conditions and experimental variables on dyes and heavy metals removal from wastewater and/or aqueous solution.
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Affiliation(s)
- S Senguttuvan
- Department of Environmental Science, School of Life Sciences, Periyar University, Salem, 636011, Tamil Nadu, India
| | - P Senthilkumar
- Department of Environmental Science, School of Life Sciences, Periyar University, Salem, 636011, Tamil Nadu, India
| | - V Janaki
- Department of Chemistry, Sri Sarada College for Women, Salem, 636011, Tamil Nadu, India.
| | - S Kamala-Kannan
- Division of Biotechnology, Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan, 54596, South Korea.
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39
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Akin Sahbaz D, Dandil S, Acikgoz C. Adsorption of reactive blue 49 onto cross-linked chitosan-based composites containing waste mussel shell and waste active sludge char. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2021; 83:715-726. [PMID: 33600374 DOI: 10.2166/wst.2021.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Cross-linked chitosan/waste mussel shell (C/WMS) and chitosan/waste mussel shell/waste active sludge char (C/WMS/WASC) composites were prepared from waste mussel shell, waste active sludge (WAS), and chitosan, and cross-linked with glutaraldehyde. The quantities of chitosan, WMS, and WASC used for the C/WMS and C/WMS/WASC composites were 1:1 and 1:0.5:0.5, respectively. The two adsorbents were characterized for their quality by a scanning electron microscope (SEM), an energy-dispersive X-ray spectroscopy (EDX), and a Brunauer, Emmett and Teller (BET) analyzer. The effects of contact time (0-1,620 mins), pH (1-5), adsorbent dosage (0.01-0.1 g/50 ml), initial dye concentration (20-100 mg/L), and temperature (25-45 °C) on Reactive Blue 49 (RB49) adsorption onto C/WMS and C/WMS/WASC composites were investigated. The maximum RB49 adsorption capacity of C/WMS and C/WMS/WASC composites was 54.7 and 38.8 mg/g, respectively. The experimental data were analyzed by kinetic and isotherm models. The Freundlich isotherm was a good fit for the experimental data of RB49 adsorption on C/WMS and C/WMS/WASC composites, and the adsorption kinetics for both adsorbents were the pseudo-second-order rate equation. All results showed the preparative adsorbents can be used as effective adsorbents for the treatment of waste water contaminated with RB49 since they are low cost and eco-friendly for the environment.
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Affiliation(s)
- Deniz Akin Sahbaz
- Department of Chemical Engineering, Faculty of Engineering, Pamukkale University, 20160 Denizli, Turkey
| | - Sahra Dandil
- Department of Chemical Engineering, Faculty of Engineering, Bilecik Seyh Edebali University, Bilecik, 11230 Turkey E-mail:
| | - Caglayan Acikgoz
- Department of Chemical Engineering, Faculty of Engineering, Bilecik Seyh Edebali University, Bilecik, 11230 Turkey E-mail:
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40
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Development of a New Hybrid Adsorbent from Opuntia Ficus Indica NaOH-Activated with PANI-Reinforced and Its Potential Use in Orange-G Dye Removal. J Inorg Organomet Polym Mater 2021. [DOI: 10.1007/s10904-020-01873-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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41
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Hsini A, Naciri Y, Benafqir M, Ajmal Z, Aarab N, Laabd M, Navío JA, Puga F, Boukherroub R, Bakiz B, Albourine A. Facile synthesis and characterization of a novel 1,2,4,5-benzene tetracarboxylic acid doped polyaniline@zinc phosphate nanocomposite for highly efficient removal of hazardous hexavalent chromium ions from water. J Colloid Interface Sci 2020; 585:560-573. [PMID: 33158558 DOI: 10.1016/j.jcis.2020.10.036] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 10/09/2020] [Accepted: 10/11/2020] [Indexed: 02/06/2023]
Abstract
The present study describes the preparation of a novel 1,2,4,5-benzene tetracarboxylic acid doped polyaniline@zinc phosphate (BTCA-PANI@ZnP) nanocomposite via a facile two-step procedure. Thereafter, the as-prepared composite material adsorption characteristics for Cr(VI) ions removal were evaluated under batch adsorption. Kinetic approach studies for Cr(VI) removal, clearly demonstrated that the results of the adsorption process followed the pseudo second order and Langmuir models. The thermodynamic study indicated a spontaneous and endothermic process. Furthermore, higher monolayer adsorption was determined to be 933.88 mg g-1. In addition, the capability study regarding Cr(VI) ions adsorption over BTCA-PANI@ZnP nanocomposite clearly revealed that our method is suitable for large scale application. X-ray photoelectron spectroscopy (XPS) analysis confirmed Cr(VI) adsorption on the BTCA-PANI@ZnP surface, followed by its subsequent reduction to Cr(III). Thus, the occurrence of external mass transfer, electrostatic attraction and reduction phenomenon were considered as main mechanistic pathways of Cr(VI) ions removal. The superior adsorption performance of the material, the multi-dimensional characteristics of the surface and the involvement of multiple removal mechanisms clearly demonstrated the potential applicability of the BTCA-PANI@ZnP material as an effective alternative for the removal of Cr(VI) ions from wastewater.
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Affiliation(s)
- Abdelghani Hsini
- Laboratory of Materials and Environment, Faculty of Sciences, Ibn Zohr University, Agadir, Morocco.
| | - Yassine Naciri
- Laboratory of Materials and Environment, Faculty of Sciences, Ibn Zohr University, Agadir, Morocco
| | - Mohamed Benafqir
- Laboratory of Materials and Environment, Faculty of Sciences, Ibn Zohr University, Agadir, Morocco
| | - Zeeshan Ajmal
- College of Engineering, China Agricultural University, 100083 Beijing, PR China
| | - Nouh Aarab
- Laboratory of Materials and Environment, Faculty of Sciences, Ibn Zohr University, Agadir, Morocco
| | - Mohamed Laabd
- Laboratory of Materials and Environment, Faculty of Sciences, Ibn Zohr University, Agadir, Morocco
| | - J A Navío
- Instituto de Ciencia de Materiales de Sevilla, Centro Mixto Universidad de Sevilla-CSIC, Américo Vespucio 49, 41092 Sevilla, Spain
| | - F Puga
- Instituto de Ciencia de Materiales de Sevilla, Centro Mixto Universidad de Sevilla-CSIC, Américo Vespucio 49, 41092 Sevilla, Spain
| | - Rabah Boukherroub
- Univ. Lille, CNRS, Centrale Lille, Univ. Polytechnique Hauts-de-France, UMR 8520 - IEMN, F-59000 Lille, France
| | - Bahcine Bakiz
- Laboratory of Materials and Environment, Faculty of Sciences, Ibn Zohr University, Agadir, Morocco
| | - Abdallah Albourine
- Laboratory of Materials and Environment, Faculty of Sciences, Ibn Zohr University, Agadir, Morocco.
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Synthesis and characterization of arginine-doped polyaniline/walnut shell hybrid composite with superior clean-up ability for chromium (VI) from aqueous media: Equilibrium, reusability and process optimization. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113832] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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43
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Essekri A, Hsini A, Naciri Y, Laabd M, Ajmal Z, El Ouardi M, Ait Addi A, Albourine A. Novel citric acid-functionalized brown algae with a high removal efficiency of crystal violet dye from colored wastewaters: insights into equilibrium, adsorption mechanism, and reusability. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2020; 23:336-346. [PMID: 32898432 DOI: 10.1080/15226514.2020.1813686] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Synthetic dye waste is one of the world's key ecological concerns. The algal biomass has emerged as a promising alternative adsorbent for wastewater treatment. The present study deals with the functionalization of brown algae (BA) by citric acid in order to improve its adsorption ability for textile dye removal in aqueous solutions. The morphological texture (SEM and BET) and surface chemistry (FTIR, EDS-mapping, and PZC) of the novel functionalized brown algae (designated as BA-CA) were analyzed. The performance of BA-CA for crystal violet (CV) dye removal from wastewater was investigated. The isotherm and kinetic adsorption modeling indicate the good fit of Langmuir isotherm and pseudo-second-order models. Optimum monolayer uptake capacity was 279.14 mg/g for BA-CA, which was about two times higher than that of unmodified BA. The thermodynamic parameters clearly indicated that CV removal process was physiosorption, exothermic, and spontaneous in nature. The regeneration study showed excellent reusability of the BA-CA up to five cycles. Overall, the experimental findings lead us to conclude that the BA-CA can be used as an eco-friendly, cost-effective and easily regenerated adsorbent for the purification of textile effluents.
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Affiliation(s)
- Abdelilah Essekri
- Laboratory of Materials and Environment, Department of Chemistry, Faculty of Sciences, Ibn Zohr University, Agadir, Morocco
| | - Abdelghani Hsini
- Laboratory of Materials and Environment, Department of Chemistry, Faculty of Sciences, Ibn Zohr University, Agadir, Morocco
| | - Yassine Naciri
- Laboratory of Materials and Environment, Department of Chemistry, Faculty of Sciences, Ibn Zohr University, Agadir, Morocco
| | - Mohamed Laabd
- Laboratory of Materials and Environment, Department of Chemistry, Faculty of Sciences, Ibn Zohr University, Agadir, Morocco
| | - Zeeshan Ajmal
- College of Engineering, China Agricultural University, Beijing, PR China
| | - Mahmoud El Ouardi
- Laboratory of Biotechnology, Materials and Environment, Faculty of Sciences, Ibn Zohr University, Agadir, Morocco
- Faculty of Applied Sciences, Ibn Zohr University, Ait Melloul, Morocco
| | - Abdelaziz Ait Addi
- Physical Chemistry and Environment Team, Faculty of Science, Ibn Zohr University, Agadir, Morocco
| | - Abdallah Albourine
- Laboratory of Materials and Environment, Department of Chemistry, Faculty of Sciences, Ibn Zohr University, Agadir, Morocco
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Khaled B, Nassira Z, Imene H. Eco-friendly synthesis of self-regenerative low-cost biosorbent by the incorporation of CuO: a photocatalyst sensitive to visible light irradiation for azo dye removal. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:31074-31091. [PMID: 32524399 DOI: 10.1007/s11356-020-09364-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Accepted: 05/18/2020] [Indexed: 06/11/2023]
Abstract
Acid pretreated biomass Lemna minor (BM-H3PO4) was used as support for CuO nanoparticles loading, to investigate the dye biosorption capacity and the photocatalytic performance under artificial visible light. The surface morphology, crystal structure, elemental composition, and the bandgap of modified biomass have been determined using FE-SEM, XRD, EDX, XPS, FTIR, and UV-DR analysis. The results showed that NH2 and P-O functional groups of (BM-H3PO4) can attract the copper ions (Cu2+), which can facilitate the loading of CuO nanoparticles hence, smaller nanoparticles with an average diameter of 21 nm was obtained. It was also found that when the CuO was incorporated in BM-H3PO4 in a proper mass ratio of 0.4, the biosorption efficiency was enhanced to 3 times compared with BM-H3PO4 and reached a maximum of 91%, at a dye concentration of 20 mg/L, solution pH equal to 5, and an ambient temperature of 25 °C. Furthermore, CuO-modified BM-H3PO4 exhibits a better photocatalytic activity than pure CuO in the presence of H2O2 and visible light irradiation, where the dye was completely removed and mineralized after 240 min, evidenced by COD measurement. The photocatalytic regeneration also shows that the biosorption efficiency was maintained at 91% over 3 cycles, indicating the significant self-regenerative capacity of the biosorbent.
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Affiliation(s)
- Benabbas Khaled
- Laboratory of Organic Synthesis-Modeling and Optimization of Chemical Processes, Department of Process Engineering, Faculty of Engineering, Badji Mokhtar-Annaba University, P.O. Box 12, 23000, Annaba, Algeria.
| | - Zabat Nassira
- Laboratory of Organic Synthesis-Modeling and Optimization of Chemical Processes, Department of Process Engineering, Faculty of Engineering, Badji Mokhtar-Annaba University, P.O. Box 12, 23000, Annaba, Algeria
| | - Hocini Imene
- Laboratory of Organic Synthesis-Modeling and Optimization of Chemical Processes, Department of Process Engineering, Faculty of Engineering, Badji Mokhtar-Annaba University, P.O. Box 12, 23000, Annaba, Algeria
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