Improving visible-light photocatalytic activity for hydrogen evolution over ZnIn2S4: A case study of alkaline-earth metal doping

被引：103

作者：

Shen, Shaohua ^{[1
]}

Zhao, Liang ^{[1
]}

Guan, Xiangjiu ^{[1
]}

Guo, Liejin ^{[1
]}

机构：

[1] Xi An Jiao Tong Univ, State Key Lab Multiphase Flow Power Engn, Xian 710049, Shaanxi, Peoples R China

来源：

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 2012年 / 73卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Semiconductors; Chemical synthesis; Optical properties; DOPED ZNIN2S4; HYDROTHERMAL SYNTHESIS; WATER; RAMAN; PHOTOLUMINESCENCE; NANOPARTICLES; ZNS;

D O I：

10.1016/j.jpcs.2011.09.027

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A series of alkaline-earth metal doped ZnIn2S4 photocatalysts were prepared by the microwave-assisted hydrothermal method, and characterized using various analysis techniques, such as XRD, Raman, UV-vis spectra, photoluminescence spectra and SEM. The successful incorporation of Ca, Sr and Ba into the lattices of ZnIn2S4 was proved by Raman spectra. Photocatalytic results demonstrated that Ca doping could greatly enhance the activity of ZnIn2S4, with about two times higher than undoped ZnIn2S4, while Sr and Ba doping could not. The varied photocatalytic activities of doped ZnIn2S4 as a function of alkaline-earth metals as dopants were discussed on the basis of the sophisticated photoluminescence process. (C) 2011 Elsevier Ltd. All rights reserved.

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页码：79 / 83

页数：5

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