Preparation of graphene oxide-Ag3PO4 composite photocatalyst with high visible light photocatalytic activity
Preparation of graphene oxide-Ag3PO4 composite photocatalyst with high visible light photocatalytic activity
复制标题
高可见光光催化活性氧化石墨烯-Ag3PO4复合光催化剂的制备
DOI：
10.1016/j.apsusc.2013.01.173
复制
发表时间：
2013-04-15
影响因子：
6.7
通讯作者：
Qian, Jin
中科院分区：
文献类型：
--
作者：
Ao, Yanhui;Wang, Peifang;Qian, Jin
采用简单沉淀法制备了氧化石墨烯/磷酸银(GO-Ag3PO4)复合光催化剂。用X射线衍射仪、扫描电子显微镜、X射线光电子能谱和紫外-可见漫反射光谱对样品进行了表征。通过对亚甲基蓝的降解考察了其光催化活性。与纯Ag3PO4相比，GO-Ag3PO4复合材料在可见光下的光催化活性有所提高。这一改进归因于以下两个原因：光生电子迁移效率的提高和对染料分子的吸附活性的提高。研究了GO加入量对光催化活性的影响，发现最佳加入量为10%。(C)2013爱思唯尔B.V.保留所有权利。
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.