Preparation, characterization and photocatalytic performance of nano α-Fe2O3 supported on metal organic framework of Cd(II) for decomposition of Cefalexin aqueous solutions

International Journal of Nano Dimension

مقاله 4، دوره 12، شماره 2، تیر 2021، صفحه 113-127   

نوع مقاله: Reasearch Paper

شناسه دیجیتال (DOI): 10.22034/ijnd.2021.678595

نویسندگان

Seyed Kamal Blourfrosh؛ Kazem Mahanpoor^*

Department of Chemistry, Arak Branch, Islamic Azad University, Arak, Iran.

چکیده

In this study, a new and effective catalyst was prepared by supporting the α-Fe₂O₃ nanoparticles on a metal-organic framework (MOF). The synthesis of nano α-Fe₂O₃ photocatalyst was performed according to the reflux condensation method. The MOF was synthesized using cadmium nitrate and terephthalic acid. The nano α-Fe₂O₃ stabilized on the MOF by the solid-state distribution method. The α-Fe₂O₃/MOF was characterized by FTIR, XRD, SEM, EDX, TEM, N₂ adsorption-desorption, and TGA techniques. The α-Fe₂O₃/MOF was used as a catalyst to the UV/H₂O₂ photocatalytic decomposition of Cefalexin (CFX) in the aqueous solutions. This process was optimized and modelled using the full factorial experimental design. Initial concentrations of CFX, pH, α- Fe₂O₃/MOF amounts, and initial concentration of H₂O₂ were the variables for determining the optimal conditions and mathematical model. The highest decomposition percentage of CFX was 95.84%. The kinetics of this reaction was obtained pseudo-first-order at a constant rate of 0.0769 min^-1.

کلیدواژه‌ها

α-Fe2O3؛ Cefalexin؛ Metal-Organic Framework؛ Photocatalyst؛ Solid-state distribution

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