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Mobarak M, Salah AM, Selim AQ, Al-Arifi N, Salama YF, Li Z, Seliem MK. Magnetic hybrid spheres of glauconite/calcium alginate interface for methylene blue adsorption: Synthesis, characterization, and novel physicochemical insights through theoretical treatment. Int J Biol Macromol 2024; 277:134106. [PMID: 39048007 DOI: 10.1016/j.ijbiomac.2024.134106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2024] [Revised: 07/14/2024] [Accepted: 07/21/2024] [Indexed: 07/27/2024]
Abstract
Fe3O4 nanoparticles were embedded within a glauconite‑calcium alginate (G/CA) matrix to create magnetic hybrid spheres (MNPs-G/CA), with the aim of purifying water from methylene blue (MB) at temperatures of 25, 40, and 50 °C. MNPs-G/CA adsorbent was characterized using numerous techniques, including elemental mapping, zeta potential, FTIR, FESEM, XRD, EDX, and TEM. The greatest amount of the removed MB was achieved under definite conditions of solution pH 8.0, MNPs-G/CA mass (25 mg), interaction time (2 h), and 200 mg/L of MB concentration. The MB uptake process kinetic followed a pseudo-second-order equation (R2 > 0.99) at all tested temperatures. The equilibrium data were fitted to a statistical physics multilayer model in conjunction with the Langmuir and Freundlich equations. The steric n parameter reveals that MNPs-G/CA adsorbent possesses a mixed adsorption orientation (i.e., ranging from 0.69 to 0.93) across various temperatures. The amount of MNPs-G/CA active positions (the NM parameter) was progressively increased from 245 mg/g to 419 mg/g. The measured adsorption capacities (Qsat) ranged from 466.49 to 664.37 mg/g, and the removal of MB molecules was consistent with an endothermic interaction. The interface between the MNPs-G/CA-MB was principally dictated by electrostatic attractions, as evidenced by the values of adsorption energies (∆E), which varied from 16.75 to 21.52 kJ/mol. The regenerated MNPs-G/CA offered over 80 % of its adsorption strength after the fourth adsorption-desorption cycle. This study contributes to our understanding of the physicochemical parameters controlling the MB adsorption mechanism on multifunctional hybrid adsorbents, like the interface between glauconite, alginate, and MNPs.
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Affiliation(s)
- Mohamed Mobarak
- Physics Department, Faculty of Science, Beni-Suef University, 62511, Egypt
| | - Ahmed M Salah
- Faculty of Earth Science, Beni-Suef University, 62511, Egypt
| | - Ali Q Selim
- Faculty of Earth Science, Beni-Suef University, 62511, Egypt
| | - Nassir Al-Arifi
- Geology and Geophysics Department, College of Science King Saud University, Riyadh, Saudi Arabia
| | - Yasser F Salama
- Geology Department, Faculty of Science, Beni-Suef University, Egypt
| | - Zichao Li
- State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, Qingdao 266071, China; Department of Food Science and Engineering, College of Life Sciences, Institute of Biomedical Engineering, Qingdao University, Qingdao 266071, China
| | - Moaaz K Seliem
- Faculty of Earth Science, Beni-Suef University, 62511, Egypt.
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2
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Hemdan M, Ragab AH, Gumaah NF, Mubarak MF. Sodium alginate-encapsulated nano-iron oxide coupled with copper-based MOFs (Cu-BTC@Alg/Fe 3O 4): Versatile composites for eco-friendly and effective elimination of Rhodamine B dye in wastewater purification. Int J Biol Macromol 2024; 274:133498. [PMID: 38944086 DOI: 10.1016/j.ijbiomac.2024.133498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Revised: 06/15/2024] [Accepted: 06/26/2024] [Indexed: 07/01/2024]
Abstract
This study explores the effectiveness of Alginate-coated nano‑iron oxide combined with copper-based MOFs (Cu-BTC@Alg/Fe3O4) composites for the sustainable and efficient removal of Rhodamine B (RhB) dye from wastewater through adsorption and photocatalysis. Utilizing various characterization techniques such as FTIR, XRD, SEM, and TEM, we confirmed the optimal synthesis of this composite. The composites exhibit a significant surface area of approximately 160 m2 g-1, as revealed by BET analysis, resulting in an impressive adsorption capacity of 200 mg g-1 and a removal efficiency of 97 %. Moreover, their photocatalytic activity is highly effective, producing environmentally friendly degradation byproducts, thus underlining the sustainability of Cu-BTC@Alg/Fe3O4 composites in dye removal applications. Our investigation delves into kinetics and thermodynamics, revealing a complex adsorption mechanism influenced by both chemisorption and physisorption. Notably, the adsorption kinetics indicate equilibrium attainment within 100 min across all initial concentrations, with the pseudo-second-order kinetic model fitting the data best (R2 ≈ 0.999). Furthermore, adsorption isotherm models, including Langmuir, Freundlich, Temkin, and Dubinin-Radushkevich, elucidate the adsorption behavior, with the Temkin and Dubinin-Radushkevich models showing superior accuracy compared to the Langmuir model (R2 ≈ 0.98 and R2 ≈ 0.96, respectively). Additionally, thermodynamic analysis reveals a negative Gibbs free energy value (-6.40 kJ mol-1), indicating the spontaneity of the adsorption process, along with positive enthalpy (+24.3 kJ mol-1) and entropy (+82.06 kJ mol-1 K) values, suggesting an endothermic and disorderly process at the interface. Our comprehensive investigation provides insights into the optimal conditions for RhB adsorption onto Cu-BTC@Alg/Fe3O4 composites, highlighting their potential in wastewater treatment applications.
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Affiliation(s)
- Mohamed Hemdan
- School of Biotechnology, Badr University in Cairo (BUC), Badr City, Cairo 11829, Egypt.
| | - Ahmed H Ragab
- Chemistry Department, College of Science, King Khalid University, Abha 61413, Saudi Arabia.
| | - Najla F Gumaah
- Chemistry Department, Faculty of Science, Northern Border University, Saudi Arabia
| | - Mahmoud F Mubarak
- Petroleum Application Department, Egyptian Petroleum Research Institute (EPRI), Cairo 11727, Egypt; Core Lab Center, Egyptian Petroleum Research Institute (EPRI), 1 Ahmed El Zomor st., Nasr City, Cairo 11727, Egypt.
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3
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Ammar A, Nouira A, El Mouridi Z, Boughribil S. Recent trends in the phytoremediation of radionuclide contamination of soil by cesium and strontium: Sources, mechanisms and methods: A comprehensive review. CHEMOSPHERE 2024; 359:142273. [PMID: 38750727 DOI: 10.1016/j.chemosphere.2024.142273] [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: 02/23/2024] [Revised: 05/03/2024] [Accepted: 05/05/2024] [Indexed: 05/19/2024]
Abstract
This comprehensive review examines recent trends in phytoremediation strategies to address soil radionuclide contamination by cesium (Cs) and strontium (Sr). Radionuclide contamination, resulting from natural processes and nuclear-related activities such as accidents and the operation of nuclear facilities, poses significant risks to the environment and human health. Cs and Sr, prominent radionuclides involved in nuclear accidents, exhibit chemical properties that contribute to their toxicity, including easy uptake, high solubility, and long half-lives. Phytoremediation is emerging as a promising and environmentally friendly approach to mitigate radionuclide contamination by exploiting the ability of plants to extract toxic elements from soil and water. This review focuses specifically on the removal of 90Sr and 137Cs, addressing their health risks and environmental implications. Understanding the mechanisms governing plant uptake of radionuclides is critical and is influenced by factors such as plant species, soil texture, and physicochemical properties. Phytoremediation not only addresses immediate contamination challenges but also provides long-term benefits for ecosystem restoration and sustainable development. By improving soil health, biodiversity, and ecosystem resilience, phytoremediation is in line with global sustainability goals and environmental protection initiatives. This review aims to provide insights into effective strategies for mitigating environmental hazards associated with radionuclide contamination and to highlight the importance of phytoremediation in environmental remediation efforts.
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Affiliation(s)
- Ayyoub Ammar
- Laboratory of Virology, Microbiology, Quality and Biotechnology /Eco-toxicology and Biodiversity (LVMQB/EB), Faculty of Sciences and Techniques Mohammedia, University Hassan II, Casablanca, Morocco; National Center for Energy, Sciences, and Nuclear Techniques (CNESTEN), Rabat, Morocco; Laboratory of Environment and Conservation of Natural Resources, National Institute of Agronomique Research (INRA), Rabat, Morocco.
| | - Asmae Nouira
- National Center for Energy, Sciences, and Nuclear Techniques (CNESTEN), Rabat, Morocco
| | - Zineb El Mouridi
- Laboratory of Environment and Conservation of Natural Resources, National Institute of Agronomique Research (INRA), Rabat, Morocco
| | - Said Boughribil
- Laboratory of Virology, Microbiology, Quality and Biotechnology /Eco-toxicology and Biodiversity (LVMQB/EB), Faculty of Sciences and Techniques Mohammedia, University Hassan II, Casablanca, Morocco
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4
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El Allaoui B, Chakhtouna H, Ouhssain A, Kadmiri IM, Benzeid H, Zari N, Qaiss AEK, Bouhfid R. Silver nanoparticle-decorated cellulose beads: Eco-friendly catalysts for efficient 4-nitrophenol reduction and antibacterial performance. Int J Biol Macromol 2024; 273:133078. [PMID: 38942667 DOI: 10.1016/j.ijbiomac.2024.133078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 05/26/2024] [Accepted: 06/09/2024] [Indexed: 06/30/2024]
Abstract
This study presents an innovative and environmentally friendly method to produce fibrous cellulose beads by mechanically stirring natural fibers in an aqueous medium. Date palm fibers are transformed into uniform beads with a diameter of 1.5 to 2 mm through chemical treatment and mechanical agitation. These beads are then decorated with silver nanoparticles (Ag0 NPs) in a one-step synthesis, giving them catalytic capabilities for the reduction of 4-nitrophenol (4-NP) and antibacterial activities. Characterization techniques such as FTIR, XRD, SEM, EDX, and TGA confirmed the successful synthesis and deposition of Ag0 NPs on the cellulose beads. Tests showed complete conversion of 4-NP to 4-AP in just 7 min, with pseudo-first-order kinetics and a Kapp of 0.590 min-1. Additionally, Ag0@CB demonstrated exceptional recyclability and stability over five cycles, with minimal silver release. The beads also showed strong antibacterial activity against Escherichia coli and Staphylococcus aureus, effectively eradicating bacterial colonies in 30 min. In summary, Ag0@CB exhibits multifunctional capabilities for degrading organic pollutants and biomedical applications, offering promising potential for large-scale production and practical use in water treatment and antibacterial coatings.
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Affiliation(s)
- Brahim El Allaoui
- Moroccan Foundation of Advanced Science Innovation and Research (MAScIR), Composites and Nanocomposites Center, Rabat Design Center, Madinat Al Irfane, Rabat, Morocco; Laboratoire de Chimie Analytique, Faculté de Médecine et de Pharmacie, Université Mohammed V de Rabat, Rabat, Morocco
| | - Hanane Chakhtouna
- Moroccan Foundation of Advanced Science Innovation and Research (MAScIR), Composites and Nanocomposites Center, Rabat Design Center, Madinat Al Irfane, Rabat, Morocco; Laboratoire de Chimie Analytique, Faculté de Médecine et de Pharmacie, Université Mohammed V de Rabat, Rabat, Morocco
| | - Ali Ouhssain
- Green Biotechnology Laboratory, Moroccan Foundation for Advanced Science, Innovation and Research (MAScIR), Rabat Design Center Rue Mohamed Al Jazouli - Madinat Al Irfane, Rabat, Morocco; Mohammed VI Polytechnic University, Lot 660 Hay Moulay Rachid, Ben Guerir 43150, Morocco
| | - Issam Meftah Kadmiri
- Green Biotechnology Laboratory, Moroccan Foundation for Advanced Science, Innovation and Research (MAScIR), Rabat Design Center Rue Mohamed Al Jazouli - Madinat Al Irfane, Rabat, Morocco; Mohammed VI Polytechnic University, Lot 660 Hay Moulay Rachid, Ben Guerir 43150, Morocco
| | - Hanane Benzeid
- Laboratoire de Chimie Analytique, Faculté de Médecine et de Pharmacie, Université Mohammed V de Rabat, Rabat, Morocco
| | - Nadia Zari
- Moroccan Foundation of Advanced Science Innovation and Research (MAScIR), Composites and Nanocomposites Center, Rabat Design Center, Madinat Al Irfane, Rabat, Morocco; Mohammed VI Polytechnic University, Lot 660 Hay Moulay Rachid, Ben Guerir 43150, Morocco
| | - Abou El Kacem Qaiss
- Moroccan Foundation of Advanced Science Innovation and Research (MAScIR), Composites and Nanocomposites Center, Rabat Design Center, Madinat Al Irfane, Rabat, Morocco; Mohammed VI Polytechnic University, Lot 660 Hay Moulay Rachid, Ben Guerir 43150, Morocco
| | - Rachid Bouhfid
- Moroccan Foundation of Advanced Science Innovation and Research (MAScIR), Composites and Nanocomposites Center, Rabat Design Center, Madinat Al Irfane, Rabat, Morocco; Mohammed VI Polytechnic University, Lot 660 Hay Moulay Rachid, Ben Guerir 43150, Morocco.
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5
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Sulaiman N, Hama N, Saithong S, Rujiralai T. A novel magnetite C18/paracetamol/alginate adsorbent bead for simultaneous extraction of synthetic antioxidants and bisphenol A in water samples. RSC Adv 2024; 14:18136-18146. [PMID: 38854826 PMCID: PMC11155554 DOI: 10.1039/d4ra02720e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Accepted: 05/31/2024] [Indexed: 06/11/2024] Open
Abstract
A novel magnetic composite bead was synthesized using carbon 18, paracetamol and alginate (mC18/Pa/Alg). The bead was applied to simultaneously adsorb butylated hydroxytoluene, butylated hydroxyanisole, and bisphenol A from water samples by magnetic solid-phase extraction (MSPE). The adsorbed analytes were determined by gas chromatography-flame ionization detection. The morphology and composition of the bead were examined by field emission scanning electron microscopy, energy-dispersive X-ray spectrometry, X-ray diffraction analysis, Fourier transform infrared spectroscopy and Brunauer-Emmett-Teller surface analysis. The best condition of MSPE included an adsorbent bead made with 0.8% sodium alginate, a 0.3 g adsorbent dose, a sample solution pH of 7, and a desorption time of 20 min in methanol. The proposed method exhibited linearity at concentrations between 0.015 and 1.00 μg mL-1 of analytes. Limits of detection ranged from 6.86 to 9.66 ng mL-1. Recoveries from 80.3 to 100.1% were achieved with interday and intraday precisions (RSDs) of 0.4-4.3%.
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Affiliation(s)
- Nurma Sulaiman
- Center of Excellence for Innovation in Chemistry and Division of Physical Science, Faculty of Science, Prince of Songkla University Songkhla 90110 Thailand
- Analytical Chemistry and Environment Research Unit, Division of Science, Faculty of Science and Technology, Prince of Songkla University Pattani 94000 Thailand
| | - Nuryanee Hama
- Center of Excellence for Innovation in Chemistry and Division of Physical Science, Faculty of Science, Prince of Songkla University Songkhla 90110 Thailand
- Analytical Chemistry and Environment Research Unit, Division of Science, Faculty of Science and Technology, Prince of Songkla University Pattani 94000 Thailand
| | - Saowanit Saithong
- Center of Excellence for Innovation in Chemistry and Division of Physical Science, Faculty of Science, Prince of Songkla University Songkhla 90110 Thailand
| | - Thitima Rujiralai
- Center of Excellence for Innovation in Chemistry and Division of Physical Science, Faculty of Science, Prince of Songkla University Songkhla 90110 Thailand
- Analytical Chemistry and Environment Research Unit, Division of Science, Faculty of Science and Technology, Prince of Songkla University Pattani 94000 Thailand
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6
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Essalmi S, Lotfi S, BaQais A, Saadi M, Arab M, Ait Ahsaine H. Design and application of metal organic frameworks for heavy metals adsorption in water: a review. RSC Adv 2024; 14:9365-9390. [PMID: 38510487 PMCID: PMC10951820 DOI: 10.1039/d3ra08815d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2023] [Accepted: 03/07/2024] [Indexed: 03/22/2024] Open
Abstract
The growing apprehension surrounding heavy metal pollution in both environmental and industrial contexts has spurred extensive research into adsorption materials aimed at efficient remediation. Among these materials, Metal-Organic Frameworks (MOFs) have risen as versatile and promising contenders due to their adjustable properties, expansive surface areas, and sustainable characteristics, compared to traditional options like activated carbon and zeolites. This exhaustive review delves into the synthesis techniques, structural diversity, and adsorption capabilities of MOFs for the effective removal of heavy metals. The article explores the evolution of MOF design and fabrication methods, highlighting pivotal parameters influencing their adsorption performance, such as pore size, surface area, and the presence of functional groups. In this perspective review, a thorough analysis of various MOFs is presented, emphasizing the crucial role of ligands and metal nodes in adapting MOF properties for heavy metal removal. Moreover, the review delves into recent advancements in MOF-based composites and hybrid materials, shedding light on their heightened adsorption capacities, recyclability, and potential for regeneration. Challenges for optimization, regeneration efficiency and minimizing costs for large-scale applications are discussed.
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Affiliation(s)
- S Essalmi
- Laboratoire de Chimie Appliquée des Matériaux, Centre des Sciences des Matériaux, Faculty of Sciences, MohammedV University in Rabat Morocco
- Université de Toulon, AMU, CNRS, IM2NP CS 60584 Toulon Cedex 9 France
| | - S Lotfi
- Laboratoire de Chimie Appliquée des Matériaux, Centre des Sciences des Matériaux, Faculty of Sciences, MohammedV University in Rabat Morocco
| | - A BaQais
- Department of Chemistry, College of Science, Princess Nourah Bint Abdulrahman University P. O. Box 84428 Riyadh 11671 Saudi Arabia
| | - M Saadi
- Laboratoire de Chimie Appliquée des Matériaux, Centre des Sciences des Matériaux, Faculty of Sciences, MohammedV University in Rabat Morocco
| | - M Arab
- Université de Toulon, AMU, CNRS, IM2NP CS 60584 Toulon Cedex 9 France
| | - H Ait Ahsaine
- Laboratoire de Chimie Appliquée des Matériaux, Centre des Sciences des Matériaux, Faculty of Sciences, MohammedV University in Rabat Morocco
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Ali MA, Mobarak M, Salah AM, Yehia A, Lima EC, Seliem AQ, Elshimy AS, Al-Dossari M, El-Gawaad NSA, Bendary HI, Seliem MK. Facile synthesis and characterization of a magnetic biosorbent derived from sodium alginate and activated graphite schist: Experimental and statistical physics analysis for Mn(VII) remediation. Int J Biol Macromol 2024; 261:129692. [PMID: 38278398 DOI: 10.1016/j.ijbiomac.2024.129692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 01/13/2024] [Accepted: 01/21/2024] [Indexed: 01/28/2024]
Abstract
H2O2-modified graphite schist (GS) and sodium alginate (SA) interface was loaded by Fe3O4 nanoparticles (MNPs) to prepare a magnetic biosorbent that was employed in removing Mn(VII) from solutions. The prepared GS/SA/MNPs adsorbent was investigated using a variety of techniques, including elemental mapping, TEM, XPS, FTIR, FESEM, EDX, XRD, XPS, and zeta potential. An experimental study supported by statistical physics calculations was carried out to obtain a new outline of the Mn(VII) uptake mechanism. The classical Freundlich and the statistical physical double-layer models adequately described the Mn(VII) uptake process at pH 3.0 and a temperature of 25-55 °C. The removed number of Mn ions (such as Mn+7 and Mn+2) per GS/SA/MNPs active site ranged from 0.70 to 0.84, indicating a mixed adsorption orientation driven by surface complexation and attraction forces mechanisms. The adsorption energies (∆E) calculated by the double-layer model ranged from 18.79 to 24.94 kJ/mol, suggesting that the interaction between Mn(VII) and GS/SA/MNPs was controlled by physical forces. Increasing the adsorption capacity at saturation (Qsat) from 333.14 to 369.52 mg/g with temperature proposed an endothermic capture process. Thermodynamic functions clarified the viability and spontaneity of Mn(VII) uptake on the GS/SA/MNPs adsorbent.
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Affiliation(s)
- Mohamed A Ali
- School of Biotechnology, Badr University in Cairo (BUC), Badr City, Cairo 11829, Egypt
| | - Mohamed Mobarak
- Physics Department, Faculty of Science, Beni-Suef University, 62511, Egypt
| | - Ahmed M Salah
- Faculty of Earth Science, Beni-Suef University, 62511, Egypt
| | - Ahmed Yehia
- Department of Mineral Beneficiation and Agglomeration, Central Metallurgical R&D Institute, P.O. Box 87, Helwan, Cairo, Egypt
| | - Eder C Lima
- Postgraduate Program in Mine, Metallurgical, and Materials Engineering (PPGE3M), School of Engineering, Federal University of Rio Grande do Sul (UFRGS), Av. Bento Gonçalves, 9500, Porto Alegre, RS, Brazil; Institute of Chemistry, Federal University of Rio Grande do Sul (UFRGS), Av. Bento Goncalves 9500, Postal Box, 15003, Porto Alegre, RS ZIP 91501-970, Brazil
| | - Ali Q Seliem
- Faculty of Earth Science, Beni-Suef University, 62511, Egypt
| | - Ahmed S Elshimy
- Faculty of Earth Science, Beni-Suef University, 62511, Egypt
| | - M Al-Dossari
- Department of Physics, Faculty of Science, King Khalid University, Abha 62529, Saudi Arabia
| | - N S Abd El-Gawaad
- Department of Physics, Faculty of Science, King Khalid University, Abha 62529, Saudi Arabia
| | - Hazem I Bendary
- Chemical Engineering Department, Higher Institute of Engineering, El-Shorouk Academy, Shorouk City, Cairo, Egypt
| | - Moaaz K Seliem
- Faculty of Earth Science, Beni-Suef University, 62511, Egypt.
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El Aouni A, El Ouardi M, Arab M, Saadi M, Haspel H, Kónya Z, Ben Ali A, Jada A, BaQais A, Ait Ahsaine H. Design of Bismuth Tungstate Bi 2WO 6 Photocatalyst for Enhanced and Environmentally Friendly Organic Pollutant Degradation. MATERIALS (BASEL, SWITZERLAND) 2024; 17:1029. [PMID: 38473501 DOI: 10.3390/ma17051029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Revised: 02/10/2024] [Accepted: 02/16/2024] [Indexed: 03/14/2024]
Abstract
In this study, a chemical precipitation approach was adopted to produce a photocatalyst based on bismuth tungstate Bi2WO6 for enhanced and environmentally friendly organic pollutant degradation. Various tools such as X-ray diffraction (XRD), Raman spectroscopy, scanning electron microscopy (SEM), optical spectroscopy and X-ray photoelectron spectroscopy, were employed to assess the structural and morphological properties. Hence, the XRD profiles showed a well crystallized Bi2WO6 orthorhombic phase. The photocatalytic performance of the resulting photocatalyst was assessed by the decomposition of Rhodamine B (RhB) and methyl orange (MO) with a decomposition efficiency of 97 and 92%, along with the highest chemical oxygen demand of 82 and 79% during 120 min of illumination, respectively. The principal novelty of the present work is to focus on the changes in the crystalline structure, the morphology, and the optical and the photoelectrochemical characteristics of the Bi2WO6, by tuning the annealing temperature of the designed photocatalyst. Such physicochemical property changes in the as-prepared photocatalyst will affect in turn its photocatalytic activity toward the organic pollutant decomposition. The photocatalytic mechanism was elaborated based on electrochemical impedance spectroscopy, photocurrent analysis, photoluminescence spectroscopy, and radical trapping measurements. The overall data indicate that the superoxide O2•- and holes h+ are the principal species responsible for the pollutant photodegradation.
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Affiliation(s)
- Aicha El Aouni
- Laboratoire de Chimie Appliquée des Matériaux, Centre des Sciences des Matériaux, Faculty of Sciences, Mohammed V University, Rabat 1014, Morocco
| | - Mohamed El Ouardi
- Laboratoire de Chimie Appliquée des Matériaux, Centre des Sciences des Matériaux, Faculty of Sciences, Mohammed V University, Rabat 1014, Morocco
- Aix Marseille University, Université de Toulon, CNRS, IM2NP, CS CEDEX 9, 60584 Toulon, France
| | - Madjid Arab
- Aix Marseille University, Université de Toulon, CNRS, IM2NP, CS CEDEX 9, 60584 Toulon, France
| | - Mohamed Saadi
- Laboratoire de Chimie Appliquée des Matériaux, Centre des Sciences des Matériaux, Faculty of Sciences, Mohammed V University, Rabat 1014, Morocco
| | - Henrik Haspel
- HUN-REN-SZTE Reaction Kinetics and Surface Chemistry Research Group, Rerrich Béla tér 1, H-6720 Szeged, Hungary
- Department of Applied and Environmental Chemistry, University of Szeged, Rerrich Béla tér 1, H-6720 Szeged, Hungary
| | - Zoltán Kónya
- HUN-REN-SZTE Reaction Kinetics and Surface Chemistry Research Group, Rerrich Béla tér 1, H-6720 Szeged, Hungary
- Department of Applied and Environmental Chemistry, University of Szeged, Rerrich Béla tér 1, H-6720 Szeged, Hungary
| | - Abdelkader Ben Ali
- Laboratoire de Chimie Appliquée des Matériaux, Centre des Sciences des Matériaux, Faculty of Sciences, Mohammed V University, Rabat 1014, Morocco
| | - Amane Jada
- Institute of Materials Science of Mulhouse (IS2M), Haute Alsace University, 68100 Mulhouse, France
- Strasbourg University, 67081 Strasbourg, France
| | - Amal BaQais
- Department of Chemistry, College of Science, Princess Nourah Bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Hassan Ait Ahsaine
- Laboratoire de Chimie Appliquée des Matériaux, Centre des Sciences des Matériaux, Faculty of Sciences, Mohammed V University, Rabat 1014, Morocco
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El Allaoui B, Benzeid H, Zari N, Qaiss AEK, Bouhfid R. Cellulose beads supported CoFe 2O 4: A novel heterogeneous catalyst for efficient rhodamine B degradation via advanced oxidation processes. Int J Biol Macromol 2024; 259:128893. [PMID: 38159693 DOI: 10.1016/j.ijbiomac.2023.128893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Revised: 12/01/2023] [Accepted: 12/17/2023] [Indexed: 01/03/2024]
Abstract
In this study, a novel mechanical process was used to produce cellulose beads (CB). These beads were then doped with cobalt ferrite nanoparticles (CoFe2O4 NPs) to serve as catalysts for the degradation of rhodamine B (RhB) through peroxymonosulfate (PMS) activation. The physical and chemical properties of CoFe2O4 and CoFe2O4@CB catalysts were characterized using X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM) combined with energy dispersive X-ray spectrometer (EDX), scanning transmission electron microscopy (STEM) techniques, and thermogravimetric analysis (TGA). To optimize RhB degradation efficiency, Response Surface Methodology (RSM) was employed, utilizing the Box-Behnken design (BBD). Under the optimized conditions of a catalyst dosage of 0.40 g/L, PMS dosage of 0.98 mM, RhB concentration of 40 mg/L, pH of 5.27, and reaction time of 60 min, a remarkable degradation efficiency of 98.51 % was achieved at a temperature of 25 °C. In quenching experiments, 1O2, SO4•-, and HO• species are produced in the CoFe2O4@CB/PMS system, with 1O2, and SO4•- species dominating RhB degradation. Remarkably, the new CoFe2O4@CB catalyst has demonstrated exceptional stability and reusability, validated by recycling tests (up to 78 % of RhB degradation efficiency after a 5-cycle experiment) and subsequent characterizations (FTIR, SEM, and EDX) emphasizing unchanged bands, uniform distribution, and consistent composition after reuse cycles. These results demonstrate the effectiveness of mechanically produced CoFe2O4@CB catalysts for advanced oxidation processes (AOPs), with promising applications in wastewater treatment.
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Affiliation(s)
- Brahim El Allaoui
- Moroccan Foundation of Advanced Science Innovation and Research MAScIR, Composites and Nanocomposites Center, Rabat Design Center, Madinat Al Irfane, Rabat, Morocco; Laboratoire de Chimie Analytique, Faculté de Médecine et de Pharmacie, Université Mohammed V de Rabat, Rabat, Morocco; Mohammed VI Polytechnic University, Lot 660 Hay Moulay Rachid, Ben Guerir 43150, Morocco
| | - Hanane Benzeid
- Laboratoire de Chimie Analytique, Faculté de Médecine et de Pharmacie, Université Mohammed V de Rabat, Rabat, Morocco
| | - Nadia Zari
- Moroccan Foundation of Advanced Science Innovation and Research MAScIR, Composites and Nanocomposites Center, Rabat Design Center, Madinat Al Irfane, Rabat, Morocco; Mohammed VI Polytechnic University, Lot 660 Hay Moulay Rachid, Ben Guerir 43150, Morocco
| | - Abou El Kacem Qaiss
- Moroccan Foundation of Advanced Science Innovation and Research MAScIR, Composites and Nanocomposites Center, Rabat Design Center, Madinat Al Irfane, Rabat, Morocco; Mohammed VI Polytechnic University, Lot 660 Hay Moulay Rachid, Ben Guerir 43150, Morocco
| | - Rachid Bouhfid
- Moroccan Foundation of Advanced Science Innovation and Research MAScIR, Composites and Nanocomposites Center, Rabat Design Center, Madinat Al Irfane, Rabat, Morocco; Mohammed VI Polytechnic University, Lot 660 Hay Moulay Rachid, Ben Guerir 43150, Morocco.
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10
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Elshimy AS, Mobarak M, Ajarem JS, Maodaa SN, Bonilla-Petriciolet A, Li Z, Korany MA, Ammar DS, Awad DG, Elberbash SA, Seliem MK. Sodium alginate-modified alkali-activated eggshell/Fe 3O 4 nanoparticles: A magnetic bio-based spherical adsorbent for cationic dyes adsorption. Int J Biol Macromol 2024; 256:128528. [PMID: 38040164 DOI: 10.1016/j.ijbiomac.2023.128528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Revised: 11/19/2023] [Accepted: 11/29/2023] [Indexed: 12/03/2023]
Abstract
Herein, a mixture of eggshell (ES) and magnetite nanoparticles (MNPs) was alkali-activated using NaOH/Na2SiO3 solution and then, impregnated with sodium alginate (SA) to prepare a magnetic bio-based adsorbent (namely SAAES/SA/MNPs) for the decontamination of water containing basic dyes, in particular, methylene blue (MB) and crystal violet (CV). The physicochemical properties of magnetic spheres of SAAES/SA/MNPs were characterized using XRD, FTIR, FESEM, EDX, elemental mapping, TEM, and zeta potential techniques. Dye adsorption equilibrium was studied experimentally at pH 8.0 and 25-55 °C, and a statistical physics multilayer model was applied to understand the removal mechanism of these dyes including the adsorption orientations on the adsorbent surface. The number of adsorbed dye molecules per functional group (n) of this bio-based adsorbent ranged from 0.70 to 0.91, indicating the presence of vertical and horizontal adsorption orientations for these organic molecules at all tested solution temperatures. The calculated saturation adsorption capacities (Qsat) were 332.57-256.62 mg/g for CV and 304.47-240.62 mg/g for MB, and an exothermic adsorption was observed for both adsorbates. The estimated adsorption energies (∆E) were < 25 kJ/mol, confirming that the SAAES/SA/MNPs-dye interactions were governed by physical forces as electrostatic interactions. This bio-based adsorbent was effectively regenerated using ethanol and it can be reused showing a removal of 71 and 74 % of MB and CV, respectively, after fourth adsorption-desorption cycles. Overall, the results of this article suggest the attractive performance of SAAES/SA/MNPs for removing basic dyes from aqueous solutions, thus highlighting the promising potential of this magnetic bio-based adsorbent for sustainable wastewater treatment at an industrial level.
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Affiliation(s)
- Ahmed S Elshimy
- Faculty of Earth Science, Beni-Suef University, 62511, Egypt
| | - Mohamed Mobarak
- Physics Department, Faculty of Science, Beni-Suef University, 62511, Egypt
| | - Jamaan S Ajarem
- Zoology Department, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Saleh N Maodaa
- Zoology Department, College of Science, King Saud University, Riyadh, Saudi Arabia
| | | | - Zichao Li
- State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, Qingdao 266071, China; Department of Food Science and Engineering, College of Life Sciences, Institute of Biomedical Engineering, Qingdao University, Qingdao 266071, China
| | - Mariam A Korany
- Faculty of Earth Science, Beni-Suef University, 62511, Egypt
| | - Dina S Ammar
- Faculty of Earth Science, Beni-Suef University, 62511, Egypt
| | - Dina G Awad
- Faculty of Earth Science, Beni-Suef University, 62511, Egypt
| | | | - Moaaz K Seliem
- Faculty of Earth Science, Beni-Suef University, 62511, Egypt.
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11
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Farsad S, Ben Hamou A, Chaoui A, Amjlef A, Lhanafi S, Et-Taleb S, El Alem N. Maximizing bio-methane potential from municipal landfill leachate through ultrasonic pretreatment. Heliyon 2023; 9:e21347. [PMID: 37908711 PMCID: PMC10613918 DOI: 10.1016/j.heliyon.2023.e21347] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 10/07/2023] [Accepted: 10/19/2023] [Indexed: 11/02/2023] Open
Abstract
In the quest for sustainable waste management solutions, this study explores the integration of ultrasonic pretreatment as a preparatory step for the anaerobic digestion of landfill leachate. Employing response surface methodology (RSM) coupled with central composite design (CCD), we systematically optimize the process parameters, including pH, inoculum volume, and ultrasonic pretreatment duration, to maximize the yield of bio-methane potential (ml CH4/g VS). The results demonstrate the effective application of RSM-CCD for predicting and modelling methane generation, with a highly significant model (R2 = 0.899). The optimized conditions reveal a remarkable biomethane potential of 177 ml CH4/g VS. Additionally, this study contributes to the understanding of the positive effect of ultrasound pretreatment on the anaerobic digestion of landfill leachate, and the quality of the digestate obtained after anaerobic digestion was studied and different valorisations were proposed.
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Affiliation(s)
- Salaheddine Farsad
- Laboratory of Materials and Environment, Ibn Zohr University, Agadir, 80000, Morocco
| | - Aboubakr Ben Hamou
- Laboratory of Materials and Environment, Ibn Zohr University, Agadir, 80000, Morocco
| | - Ayoub Chaoui
- Laboratory of Materials and Environment, Ibn Zohr University, Agadir, 80000, Morocco
| | - Asma Amjlef
- Laboratory of Materials and Environment, Ibn Zohr University, Agadir, 80000, Morocco
| | - Saaida Lhanafi
- Laboratory of Materials and Environment, Ibn Zohr University, Agadir, 80000, Morocco
| | - Said Et-Taleb
- Laboratory of Materials and Environment, Ibn Zohr University, Agadir, 80000, Morocco
| | - Noureddine El Alem
- Laboratory of Materials and Environment, Ibn Zohr University, Agadir, 80000, Morocco
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