文献类型：期刊文献

英文题名：Photocatalytic study of BiOCl for degradation of organic pollutants under UV irradiation

作者：Chen, Feng[1];Liu, Hongqi;Bagwasi, Segomotso;Shen, Xingxing;Zhang, Jinlong

机构：[1]E China Univ Sci & Technol, Key Lab Adv Mat, Shanghai 200237, Peoples R China; E China Univ Sci & Technol, Inst Fine Chem, Shanghai 200237, Peoples R China

年份：2010

卷号：215

期号：1

起止页码：76

外文期刊名：JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY

收录：;EI(收录号：20242716588754);WOS:【SCI-EXPANDED(收录号:WOS:000282864700011)】；

基金：This work was supported by the National Science Foundation of China (20777015), National Basic Research Program of China (2010CB732306, 2007CB613301) and the Fundamental Research Funds for the Central Universities.

语种：英文

外文关键词：BiOCl; Chlorides; Chlorine radical; Photocatalysis; Photostability

摘要：BiOCl exhibited high photocatalytic activities for the degradation of rhodamine B, methyl orange and phenol. Surface chloride ions were adverse to the BiOCl photocatalysis and dissociated from BiOCl via reaction with photogenerated holes and electrons under UV irradiation. Conduction band electrons of BiOCl directly reduced either chlorine radical or the azo-bond of MO during the photocatalytic process. Hydroxyl radical was the main oxidative species in the BiOCl photocatalysis, whose generation can be accelerated via enhancing the conduction band electron consumption by MO. After the photocatalytic reaction, the dissolved chloride ion would spontaneously recombine back to the BiOCl photocatalyst. hence qualifies BiOCl as a practical high-activity photocatalyst with long lifetime. (C) 2010 Elsevier B.V. All rights reserved.