Preparation of graphene oxide-Ag3PO4 composite photocatalyst with high visible light photocatalytic activity

被引：78
作者：
Ao, Yanhui [1 ]
Wang, Peifang [1 ]
Wang, Chao [1 ]
Hou, Jun [1 ]
Qian, Jin [1 ]
机构：
[1] Hohai Univ, Coll Environm, Minist Educ, Key Lab Integrated Regulat & Resource Dev Shallow, Nanjing 210098, Jiangsu, Peoples R China
来源：
APPLIED SURFACE SCIENCE | 2013年 / 271卷
基金：
中国国家自然科学基金; 高等学校博士学科点专项科研基金;
关键词：
Photocatalysis; Visible light; Ag3PO4; Graphene oxide; Composite; TIO2 NANOTUBE ARRAYS; ASSISTED SYNTHESIS; NANOPARTICLES; REDUCTION; TITANIA; OXIDE; PHOTODEGRADATION; DEGRADATION; SYNERGY;
D O I：
10.1016/j.apsusc.2013.01.173
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：
Graphene oxide/Ag3PO4 (GO-Ag3PO4) composite photocatalysts were prepared by a simple precipitant method. The obtained samples were characterized by X-ray diffraction, scanning electron microscopy, X-ray photoelectron spectroscopy and UV-vis diffuse reflectance spectroscopy. The photocatalytic activity was investigated by the degradation of MB. An increase in photocatalytic activity was observed for GO-Ag3PO4 composite materials compared with pure Ag3PO4 under visible light. This improvement was attributed to the following two reasons: increased migration efficiency of photo-induced electrons and increased adsorption activity for dye molecules. A study of the effect of the amount of GO on the photocatalytic activity showed that there was an optimum amount of 10%. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：265 / 270
页数：6
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