Enhanced photocatalytic activity of sponge-like ZnFe2O4 synthesized by solution combustion method期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Enhanced photocatalytic activity of sponge-like ZnFe2O4 synthesized by solution combustion method

Authors:	Song Sun Xiaoyan Yang Yi Zhang Fan Zhang Jianjun Ding Jun Bao and Chen Gao

Affiliation:	CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China National Synchrotron Radiation Laboratory & School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230029, China;National Synchrotron Radiation Laboratory & School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230029, China;National Synchrotron Radiation Laboratory & School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230029, China;National Synchrotron Radiation Laboratory & School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230029, China;CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China National Synchrotron Radiation Laboratory & School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230029, China;CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China National Synchrotron Radiation Laboratory & School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230029, China;CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China National Synchrotron Radiation Laboratory & School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230029, China

Abstract:	A kind of cubic ZnFe2O4 with spinel structure was synthesized by an improved solution combustion method via a facile and environmentally friendly pathway and their photocatalytic activity under visible light radiation was investigated. The particle synthesized under the ignition temperature of 573 K has a pure phase. While a small amount impurities, a-Fe2O3 and ZnO, were formed in the sample during the combustion process at higher ignition temperature of 623 K. The synthesized ZnFe2O4 has a sponge-like porous structure and wide absorption in the visible-light region. The impurities a-Fe2O3 and ZnO formed in the sample probably enhance the reduction and oxidation ability and promote the separation of photo-generated electrons and holes. Comparing with ZnFe2O4 synthesized by the conventional solid state reaction, the ZnFe2O4 derived by solution combustion method showed the better photocatalytic activity under visible light radiation.

Keywords:	Zinc ferrite Photocatalysis Solution combustion Infrared thermal image
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