文献类型：期刊文献

英文题名：AgBr@Ag/TiO2 core-shell composite with excellent visible light photocatalytic activity and hydrothermal stability

作者：Dong, Rongfang;Tian, Baozhu[1];Zhang, Jinlong;Wang, Tingting;Tao, Qingsong;Bao, Shenyuan;Yang, Fan;Zeng, Cuiyun

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：2013

卷号：38

起止页码：16

外文期刊名：CATALYSIS COMMUNICATIONS

收录：;EI(收录号：20132316391879);WOS:【SCI-EXPANDED(收录号:WOS:000320681600004)】；

基金：This work has been supported by the National Natural Science Foundation of China (21277046, 21047002, 21173077), the Shanghai Natural Science Foundation (10ZR1407400), the Project of International Cooperation of the Ministry of Science and Technology of China (2011DFA50530), and the Science and Technology Commission of Shanghai Municipality (10JC1403900).

语种：英文

外文关键词：Silver bromide; Titanium dioxide; Core-shell structure; Photocatalytic degradation; Organic pollutants

摘要：AgBr@Ag/TiO2 core-shell photocatalysts were fabricated by a facile green route. TiO2 was uniformly coated on the surface of cubic AgBr, making AgBr@Ag/TiO2 core-shell photocatalyst show excellent hydrothermal stability. Beneficial from that Ag nanoparticles and AgBr can respond to visible light and core-shell structure can effectively separate the photogenerated electrons and holes, AgBr@Ag/TiO2 core-shell composites exhibited outstanding visible light photocatalytic activity for the degradation of acid orange 7. The activity of AgBr@Ag/TiO2 is related to the thickness of TiO2 shell, and the optimal shell thickness for obtaining the highest activity is 10 nm. (C) 2013 Elsevier B.V. All rights reserved.