One-pot synthesis of AgBr/Ag2CO3 heterojunctions with enhanced visible-light photocatalytic activity

被引：8

作者：

Wang, Peifang ^{[1
]}

Wu, Tengfei ^{[1
]}

Ao, Yanhui ^{[1
]}

Wang, Chao ^{[1
]}

Hou, Jun ^{[1
]}

Qian, Jin ^{[1
]}

Li, Yi ^{[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：

MATERIALS LETTERS | 2016年 / 163卷

基金：

中国国家自然科学基金;

关键词：

Semiconductor; Composite materials; AgBr; Ag2CO3; Heterojunction; Photocaatalysis; TIO2; PHOTOCATALYSIS; FACILE SYNTHESIS; EFFICIENCY; WATER; DEGRADATION;

D O I：

10.1016/j.matlet.2015.10.050

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

AgBr/Ag2CO3 heterojunctions were synthesized via a simple one-pot co-precipitation process. Namely, the growth of Ag2CO3 and AgBr crystals occurred simultaneously in one single process. The obtained samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and UV-vis diffuse reflectance spectroscopy (DRS). The photocatalytic activity of as-prepared samples was investigated by degradation of Rhodamine B (RhB) under visible light irradiation. An enhancement in photocatalytic activity was observed in AgBr/Ag2CO3 composites compared with pure AgBr and Ag2CO3. We also investigated the effect of the ratio of AgBriAg(2)CO(3) on the photocatalytic activity of the as-prepared heterojunctions. With the optimal theoretical Br-/CO32- molar ratio of 1:2, the sample exhibits the highest photocatalytic activity. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：258 / 261

页数：4

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