Crystallite, optical and photocatalytic properties of visible-light-driven ZnIn2S4 photocatalysts synthesized via a surfactant-assisted hydrothermal method

被引：117

作者：

Shen, Shaohua ^{[1
]}

Zhao, Liang ^{[1
]}

Guo, Liejin ^{[1
]}

机构：

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

来源：

MATERIALS RESEARCH BULLETIN | 2009年 / 44卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Chalcogenides; Semiconductors; Crystal structure; Catalytic properties; optical properties; COORDINATED D(10) CONFIGURATION; SOLID-SOLUTION PHOTOCATALYSTS; WATER DECOMPOSITION; H-2; EVOLUTION; HYDROGEN-PRODUCTION; IRRADIATION; NANOSTRUCTURE; CATALYSTS; O-2;

D O I：

10.1016/j.materresbull.2008.03.027

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A series of ZnIn2S4 photocatalysts were synthesized via a surfactant-assisted hydrothermal method. The products were characterized with X-ray diffraction (XRD), UV-vis-near-IR diffuse reflectance spectra (UV-vis), photoluminescence spectra (PL) and field emission scanning electron microscope (FESEM). The results indicated that the CTAB-assisted ZnIn2S4 product had a wider band gap than the other three ZnIn2S4 products (CPBr-assisted, SDS-assisted and no-surfactant-assisted ZnIn2S4). The surfactant (especially CTAB) addition would greatly affect the crystal structure (i.e. d(0 0 6) along the c-axis) of ZnIn2S4. The photocatalytic activities of the as-prepared samples were evaluated by photocatalytic hydrogen production from water under visible light irradiation. The CTAB-assisted ZnIn2S4 product, with quantum yield (420 nm) determined to be 11.9%, had a much higher photocatalytic activity than the other three ZnIn2S4 products in our photocatalytic system. The energy conversion efficiency in the whole visible light region was determined to be 3.1% for the CTAB-assisted ZnIn2S4 photocatalyst. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：100 / 105

页数：6

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