文献类型：期刊文献

英文题名：BiOBr/BiOF composites for efficient degradation of rhodamine B and nitrobenzene under visible light irradiation

作者：Jiang, Tingting[1];Li, Jinliang[1];Gao, Yang[2];Li, Lei[3];Lu, Ting[1];Pan, Likun[1]

机构：[1]East China Normal Univ, Shanghai Key Lab Magnet Resonance, Sch Phys & Mat Sci, Shanghai 200062, Peoples R China;[2]East China Univ Sci & Technol, Key Lab Pressure Syst & Safety, Minist Educ, Sch Mech & Power Engn, Shanghai 200237, Peoples R China;[3]Yangtze Normal Univ, Sch Mech & Elect Engn, Chongqing 408100, Peoples R China

年份：2017

卷号：490

起止页码：812

外文期刊名：JOURNAL OF COLLOID AND INTERFACE SCIENCE

收录：;EI(收录号：20165103152471);WOS:【SCI-EXPANDED(收录号:WOS:000393148300087)】；

语种：英文

外文关键词：BiOBr/BiOF composites; Rhodamine B; Nitrobenzene; Photocatalysis

摘要：BiOBr/BiOF (BF) composites were successfully synthesized via a facile one-step hydrothermal method for the first time. The structures, morphologies and photocatalytic performances of BF composites were characterized by X-ray diffraction, scanning electron microscopy, high-resolution transmission electron microscopy, UV-vis absorption spectroscopy, X-ray photoelectron spectroscopy, photoluminescence spectroscopy and electrochemical impedance spectroscopy respectively. The results show that the BF composites exhibit enhanced photocatalytic performances in the degradation of RhB and nitrobenzene with maximum degradation rates of 100% (25 min) and 94% (300 min) under visible light irradiation, respectively. The improved photocatalytic performance is mainly ascribed to the small crystalline size and the reduced electron-hole pair recombination with the presence of BiOF in the composites. Furthermore, the photodegradation mechanism was investigated and the h(+) and .OH radicals are suggested to be the main active species for photocatalytic degradation of RhB and nitrobenzene. (C) 2016 Elsevier Inc. All rights reserved.