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Iranian Journal of Chemistry and Chemical Engineering، جلد ۳۸، شماره ۲، صفحات ۲۱-۲۸
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عنوان انگلیسی Preparation, Characterization, and Application of Nanospherical α-Fe2O3 Supported on Silica for Photocatalytic Degradation of Methylene Blue
چکیده انگلیسی مقاله In the research, spherical α-Fe2O3 NanoParticles (NPs) were synthesized through Forced Hydrolysis and Reflux Condensation (FHRC) process and were supported on the surface of silica sand by Solid-State Dispersion (SSD) method. Characterization of silica and α-Fe2O3/SiO2 catalyst was done using Fourier-Transform InfraRed (FT-IR) spectroscopy, Scanning Electron Microscopy (SEM) images, X-Ray Diffraction (XRD) patterns and Brunauer, Emmet and Teller (BET) surface area. The supported α-Fe2O3/SiO2 nanocatalyst with the average crystallite size of 27.5 nm was used for photocatalytic removal of Methylene Blue (MB) from aqueous solutions under Ultra-Violet (UV) light.In order to optimization of effective parameters on MB degradation, the single-variable method was used. The optimal conditions were determined as pH=11, initial concentration of MB=10 ppm, and the mass of catalyst =1.0 g. Degradation efficiency in optimal conditions was 97.32%.
کلیدواژه‌های انگلیسی مقاله Methylene blue, SSD, FHRC, α-Fe2O3, SiO2
نویسندگان مقاله Ali Arasteh Nodeh |
Chemical Engineering Department, Quchan Branch, Islamic Azad University, Quchan, I.R. IRAN

Majid Saghi |
Young Researchers and Elite Club, Arak Branch, Islamic Azad University, Arak, I.R. IRAN

Mohammad Khazaei Nejad |
Department of Chemistry, Mashhad Branch, Islamic Azad University, Mashhad, I.R. IRAN

نشانی اینترنتی http://www.ijcce.ac.ir/article_30422_7ae81acb94b8d1c4aeb50c3ab66eed26.pdf
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