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

详细信息    查看全文

• 作者：Rongfang Dong ; Baozhu Tian ; ^{baozhutian@ecust.edu.cn} ; Jinlong Zhang ; Tingting Wang ; Qingsong Tao ; Shenyuan Bao ; Fan Yang ; Cuiyun Zeng
• 关键词：Silver bromide ; Titanium dioxide ; Core&ndash ; shell structure ; Photocatalytic degradation ; Organic pollutants
• 刊名：Catalysis Communications
• 出版年：2013
• 出版时间：5 August, 2013
• 年：2013
• 卷：38
• 期：Complete
• 页码：16-20
• 全文大小：813 K

文摘

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.