Preparation and characterisation of Ag3PO4/BiOBr composites with enhanced visible light driven photocatalytic performance

被引：12

作者：

Cui, Z. K. ^{[1
]}

Zhang, F. L. ^{[1
]}

Zheng, Z. ^{[1
]}

Fa, W. J. ^{[1
]}

Huang, B. J. ^{[1
]}

机构：

[1] Xuchang Univ, Inst Surface Micro & Nano Mat, Key Lab Micronano Mat Energy Storage & Convers He, Xuchang 461000, Peoples R China

来源：

MATERIALS TECHNOLOGY | 2014年 / 29卷 / 04期

基金：

中国国家自然科学基金;

关键词：

BiOBr; Ag3PO4; Composites; Visible light driven; Photocatalyst; DEGRADATION; SEMICONDUCTOR; NANOPARTICLES;

D O I：

10.1179/1753555714Y.0000000131

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Ag3PO4/BiOBr composites were prepared by a facile room temperature liquid phase method. The samples were characterised by X-ray diffraction, SEM, energy dispersive X-ray spectroscopy, ultraviolet-visible and photoluminescence (PL) techniques. The photocatalytic activity was evaluated by photodegrading methylene blue under visible light irradiation. The results show that Ag3PO4/BiOBr composites were successfully formed and the Ag3PO4 nanoparticles were randomly distributed on the surface of BiOBr nanosheets. The composites exhibit better visible light absorption ability, and the PL results show that the composites have enhanced photogenerated carrier separation efficiency. The best photocatalytic performance is obtained for the sample with Ag/Bi ratio of 0.5, the photocatalytic efficiency of which is six times that of BiOBr. The improvement of the photocatalytic activity is associated with the coupling effects of the two semiconductors.

引用

页码：214 / 219

页数：6

共 36 条

[1] Visible-light photocatalysis in nitrogen-doped titanium oxides [J].