Magnetic porous (Cu-MOF@Fe3O4) materials-based metal organic framework as heterogeneous catalytic supports for optimized tartrazine yellow (E102) dye degradation by Fenton-like process
Tchuifon D.R.T. Fotsop C.G. Tchaptchet T.H. Mekuete L.B.K. Feudjio F.D.S. Fongang J.G. Nguena K.L.T. Hosseini-Bandegharaei A. Bektenov N. Azebaze A.G.B.
25 December 2025Elsevier B.V.
Journal of Molecular Structure
2025#1348
This study examined the potential of copper-based metal-organic frameworks (Cu-MOFs) and magnetic composite (Cu-MOF@Fe₃O₄) as heterogeneous Fenton-like catalysts for the degradation of tartrazine yellow (E102) in solution. The Cu-MOF@Fe₃O₄ hybrid material was synthesized and characterized by several techniques including Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), N2 sorption and energy-dispersive spectroscopy (EDX). The analytical results revealed that the incorporation of Fe₃O₄ nanoparticles altered the structural crystallinity of the Cu-MOF, creating a dense morphological framework that is conducive to catalytic activity. Systematic optimization of operating conditions maximized dye degradation efficiency (94.40% predicted and 91.77% obtained experimentally) under weakly acidic conditions (pH 3.5), with a catalyst dosage of 50 mg, 1.22 mol/L H₂O₂, and an initial E102 concentration of 150 mg/L. Kinetic studies are in good agreement with a pseudo-first-order model, suggesting that surface-mediated radical mechanisms govern the oxidation process. Characterization of the catalyst after degradation showed minimal structural changes, demonstrating its stability and potential for reuse without significant performance deterioration. The impact of distilled water, tap water, rainwater, surface water (lake), and borehole water was evaluated. Lake water had the greatest influence on the degradation of E102 due to its organic matter, anions, and cations. This work emphasizes the synergistic advantages of magnetic MOF composites in Fenton-like systems, which offer enhanced catalytic activity and easy magnetic recovery, a key feature for scalable wastewater treatment processes.
Cu-MOFs , Fenton process , Magnetic Cu-MOF@Fe3O4 , Tartrazine yellow
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Laboratory of Chemical Engineering and Industrial Bio-Processes (LCEIBP), National Higher Polytechnic School of Douala, University of Douala, Douala, P.O. Box 2701, Cameroon
Institute of Chemistry, Faculty of Process and Systems Engineering, Universität Platz 2, Magdeburg, 39106, Germany
Department of Chemistry, Faculty of Science, University of Douala, PO Box: 24157, Douala, Cameroon
Institut Universitaire de la Côte: Pôle de Recherche, de LInnovation et de lEntrepreneuriat, B.P. 3001, Douala, Cameroon
Laboratory of Applied Physical and Analytical Chemistry, Department of inorganic Chemistry, Faculty of Science, University of Yaoundé 1, PO Box 812, Yaoundé, Cameroon
Department of Chemistry, Research Unit of Noxious Chemistry and Environmental Engineering. Faculty of Science, University of Dschang, P.O. Box 67, Dschang, Cameroon
Africa Center of Excellence in Future and Electrochemical Systems, Federal University of Technology Owerri, Nigeria
Faculty of Chemistry, Semnan University, Semnan, Iran
Department of Sustainable Engineering, Saveetha School of Engineering, SIMATS, Tamil Nadu, Chennai, 602105, India
Research and Innovation Cell, Rayat Bahra University, Punjab, Mohali, India
Institute of Natural Sciences and Geography, Abai University, Almaty, 050010, Kazakhstan
JSC Institute of Chemical Sciences named after A.B. Bekturov, Almaty, 050010, Kazakhstan
Laboratory of Chemical Engineering and Industrial Bio-Processes (LCEIBP)
Institute of Chemistry
Department of Chemistry
Institut Universitaire de la Côte: Pôle de Recherche
Laboratory of Applied Physical and Analytical Chemistry
Department of Chemistry
Africa Center of Excellence in Future and Electrochemical Systems
Faculty of Chemistry
Department of Sustainable Engineering
Research and Innovation Cell
Institute of Natural Sciences and Geography
JSC Institute of Chemical Sciences named after A.B. Bekturov
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