Selective synthesis of bismuth vandate with different crystalline phases and their photocatalytic activity
Li Jie1, Pang Xianjuan2, Song Chenfei2
1.Medical College,Henan University of Science and Technology,Luoyang 471023; 2.School of Chemical Engineering and Pharmaceutics,Henan University of Science and Technology,Luoyang 471023
Abstract: Using bismuth nitrate and ammonium metavanadate as raw materials,the visible-light-driven photocatalyst bismuth vanadate (BiVO4) were synthesized via a microwave hydrothermal method.BiVO4 (z-t) and BiVO4 (s-m) were selective synthesized by controlling the temperature of reaction solution under microwave hydrothermal process.The as-synthesized samples were characterized by X-ray powder diffraction,UV-Vis diffuse reflectance spectroscopy and scanning electron microscopy.The photocatalytic activity was investigated using methylene blue as the target degradation material.The results showed that the reaction temperature had a great influence on the crystal form and morphology of BiVO4 photocatalyst,and the BiVO4 (s-m) showed higher photocatalytic activity than that of BiVO4 (z-t),and the degradation rate of MB was 90% under visible light irradiation for 5 h.
李杰, 逄显娟, 宋晨飞. 钒酸铋的选择性合成及其光催化性能研究[J]. 化工新型材料, 2018, 46(8): 217-220.
Li Jie, Pang Xianjuan, Song Chenfei. Selective synthesis of bismuth vandate with different crystalline phases and their photocatalytic activity. New Chemical Materials, 2018, 46(8): 217-220.
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