Preparation, characterization and photocatalytic performance of nano α-Fe۲O۳ supported on metal organic framework of Cd(II) for decomposition of Cefalexin aqueous solutions
- سال انتشار: 1400
- محل انتشار: مجله بین المللی ابعاد نانو، دوره: 12، شماره: 2
- کد COI اختصاصی: JR_IJND-12-2_004
- زبان مقاله: انگلیسی
- تعداد مشاهده: 82
نویسندگان
Department of Chemistry, Arak Branch, Islamic Azad University, Arak, Iran.
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-Fe۲O۳ nanoparticles on a metal-organic framework (MOF). The synthesis of nano α-Fe۲O۳ photocatalyst was performed according to the reflux condensation method. The MOF was synthesized using cadmium nitrate and terephthalic acid. The nano α-Fe۲O۳ stabilized on the MOF by the solid-state distribution method. The α-Fe۲O۳/MOF was characterized by FTIR, XRD, SEM, EDX, TEM, N۲ adsorption-desorption, and TGA techniques. The α-Fe۲O۳/MOF was used as a catalyst to the UV/H۲O۲ 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- Fe۲O۳/MOF amounts, and initial concentration of H۲O۲ were the variables for determining the optimal conditions and mathematical model. The highest decomposition percentage of CFX was ۹۵.۸۴%. The kinetics of this reaction was obtained pseudo-first-order at a constant rate of ۰.۰۷۶۹ min-۱.کلیدواژه ها
α-Fe۲O۳, Cefalexin, Metal-organic framework, Photocatalyst, Solid-state distributionاطلاعات بیشتر در مورد COI
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