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

被引：63
|
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
来源：
CATALYSIS COMMUNICATIONS | 2013年 / 38卷
基金：
中国国家自然科学基金;
关键词：
Silver bromide; Titanium dioxide; Core-shell structure; Photocatalytic degradation; Organic pollutants; AG-AT-AGCL; HIGHLY EFFICIENT; TITANIUM-DIOXIDE; PLASMONIC PHOTOCATALYST; ORGANIC-COMPOUNDS; ANATASE TIO2; DEGRADATION; NANOCOMPOSITE; MICROCRYSTALS; COMPLEX;
D O I：
10.1016/j.catcom.2013.04.006
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
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.
引用
收藏
页码：16 / 20
页数：5
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