Study on improving visible light photocatalytic activity of Ag3PO4 through morphology control

被引：29
作者：
Wang, Bo [1 ]
Wang, Lai [1 ]
Hao, Zhibiao [1 ]
Luo, Yi [1 ]
机构：
[1] Tsinghua Univ, Dept Elect Engn, Tsinghua Natl Lab Informat Sci & Technol, Beijing 100084, Peoples R China
来源：
CATALYSIS COMMUNICATIONS | 2015年 / 58卷
基金：
中国国家自然科学基金;
关键词：
Visible light photocatalysts; Ag3PO4; Morphology control; Dye degradation; DEGRADATION; WATER; SEMICONDUCTOR;
D O I：
10.1016/j.catcom.2014.09.013
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：
Improving the visible light activity of Ag3PO4 photocatalyst through morphology control was studied using a precipitation synthetic method. It was found that the morphology depended on the reactants' constitution. With its alteration, polyhedral microcrystals, spherical and irregular nanocrystals were obtained, respectively. Among them, the polyhedrons exhibited the highest efficiency in degrading methylene blue. This was attributed to the higher visible-light absorption efficiency and more effective electron-hole separation ability of the polyhedrons, according to UV-visible diffuse reflectance spectroscopy (UV-vis DRS) and photoluminescence (PL) investigation. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：117 / 121
页数：5
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