Enhanced photocatalytic performance of Er-doped Bi24O31Br10: Facile synthesis and photocatalytic mechanism

被引：39

作者：

Liu, Zhang Sheng ^{[1
]}

Liu, Zhi Lin ^{[1
]}

Liu, Jin Long ^{[1
]}

Zhang, Jing Wen ^{[1
]}

Zhou, Ting Fei ^{[1
]}

Ji, Xiang ^{[1
]}

机构：

[1] China Univ Min & Technol, Sch Mat Sci & Engn, Xuzhou 221116, Peoples R China

来源：

MATERIALS RESEARCH BULLETIN | 2016年 / 76卷

关键词：

Nanostructures; Solvothermal; Optical properties; Transmission electron microscopy; Catalytic properties; UP-CONVERSION; DEGRADATION; OXIDE; PHOTOACTIVITY; LUMINESCENCE; NANOSHEETS; WATER;

D O I：

10.1016/j.materresbull.2015.12.033

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Erbium (Er) doped Bi24O31Br10 samples were successfully prepared by using a solvothermal method. The samples were characterized by XRD, XPS, SEM, TEM, BET, DRS, PL and EIS. The photocatalytic activity was evaluated by the degradation of rhodamine B (RhB) and methyl orange (MO) under visible light irradiation. The result shows that Er dopant induces a significant improvement in the photocatalytic activity. 1.0% Er-Bi24O31Br10 sample exhibits the best photocatalytic performance. The enhanced photocatalytic activity is attributed to the effective trapping of photogenerated electron by Er3+ ion and the up-conversion process resulting from Er dopant. In addition, it is found that holes and super-oxide radicals play main role in the photocatalytic degradation of RhB and MO. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：256 / 263

页数：8

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