Ag-Ag2CO3/Bi2MoO6 composites with enhanced visible-light-driven catalytic activity

被引：14
作者：
Zhang, Junlei [1 ]
Ma, Zhen [1 ,2 ]
机构：
[1] Fudan Univ, Dept Environm Sci & Engn, Shanghai Key Lab Atmospher Particle Pollut & Prev, Shanghai 200433, Peoples R China
[2] Shanghai Inst Pollut Control & Ecol Secur, Shanghai 200092, Peoples R China
来源：
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS | 2018年 / 88卷
基金：
中国国家自然科学基金;
关键词：
Heterojunction; Ag2CO3; Bi2MoO6; Visible-light-driven; Photocatalysis; PHOTOCATALYTIC ACTIVITY; HYDROGEN-PRODUCTION; FACILE SYNTHESIS; BI2MOO6; HETEROJUNCTION; PERFORMANCE; NANOCOMPOSITES; PHOTOACTIVITY; DECOMPOSITION; DISINFECTION;
D O I：
10.1016/j.jtice.2018.03.043
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Novel Ag-Ag2CO3/Bi2MoO6 composites were obtained through in situ formation of Ag2CO3 rods/nanoparticles onto Bi2MoO6 nanosheets, followed by photoreduction. These composites were found to be much more active than Bi2MoO6 in photocatalytic degradation of rhodamine B (RhB) under visible-light irradiation. In particular, an Ag-Ag2CO3/Bi2MoO6 composite with a theoretical Ag2CO3/Bi2MoO6 mass ratio of similar to 27.5% exhibited the highest photocatalytic activity. It was also the most active in photocatalytic degradation of methyl blue (MB) and tetracycline hydrochloride (TC), due to the enhanced visible-light absorption and efficient separation of photogenerated carriers. The good reusability of Ag-Ag2CO3/Bi2MoO6 was verified by cycling degradation experiments. The dominant active species were found to be photogenerated holes (h(+)). A possible photocatalytic mechanism was proposed. (C) 2018 Taiwan Institute of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
引用
收藏
页码：121 / 129
页数：9
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