Photocatalytic performance of tetragonal and cubic β-In2S3 for the water splitting under visible light irradiation

被引：192

作者：

Fu, Xianliang ^{[1
]}

Wang, Xuxu ^{[1
]}

Chen, Zhixin ^{[1
]}

Zhang, Zizhong ^{[1
]}

Li, Zhaohui ^{[1
]}

Leung, Dennis Y. C. ^{[2
]}

Wu, Ling ^{[1
]}

Fu, Xianzhi ^{[1
]}

机构：

[1] Fuzhou Univ, Res Inst Photocatalysis, Fuzhou 350002, Peoples R China

[2] Univ Hong Kong, Dept Mech Engn, Hong Kong, Hong Kong, Peoples R China

来源：

APPLIED CATALYSIS B-ENVIRONMENTAL | 2010年 / 95卷 / 3-4期

基金：

中国国家自然科学基金;

关键词：

In2S3; Photocatalytic activity; Hydrogen evolution; Vacancy; HYDROGEN EVOLUTION; H-2; EVOLUTION; SULFIDE; IN2S3; NAXCU1-XIN5S8; INTERFACE; ZNIN2S4; IMPACT; EARTH; TIO2;

D O I：

10.1016/j.apcatb.2010.01.018

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：

Tetragonal (T-In2S3) and cubic (C-In2S3) beta-In2S3 were synthesized by hydrothermal method. The obtained products were characterized by X-ray diffraction (XRD), diffuse reflectance spectra (DRS), X-ray photoelectron spectroscopy (XPS), and transmission electron microscopy (TEM) technologies. Their photocatalytic activity for hydrogen evolution from water under visible light irradiation (lambda > 400 nm) was evaluated. It was revealed that the photocatalytic activity of beta-In2S3 was strongly affected by the arrangement characteristic of the indium vacancies. The vacancy ordered T-In2S3 showed no activity for hydrogen production, while the vacancy disordered C-In2S3 exhibited stable activity. For C-In2S3 sample, further studies indicated that the photoactivity strongly depended on the nature and the amount of noble metal cocatalyst. The optimum loading value of Pt cocatalyst was found to be 2 wt.%. With this loading amount as a reference value, the hydrogen production rate of noble-metal-loaded C-In2S3 decreased in the order Pd > Pt > Ru > Au/C-In2S3. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：393 / 399

页数：7

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