Synthesis of novel MoS2/g-C3N4 heterojunction photocatalysts with enhanced hydrogen evolution activity

被引：93

作者：

Tian Yuming ^{[1
]}

Ge Lei ^{[2
]}

Wang Kaiyue ^{[1
]}

Chai Yuesheng ^{[1
]}

机构：

[1] Taiyuan Univ Sci & Technol, Taiyuan 030024, Peoples R China

[2] China Univ Petr, Coll Sci, Key Lab Heavy Oil Proc, Beijing 102249, Peoples R China

来源：

MATERIALS CHARACTERIZATION | 2014年 / 87卷

基金：

美国国家科学基金会;

关键词：

Photocatalysis; Nanoparticles; Functional; Semiconductors;

D O I：

10.1016/j.matchar.2013.10.020

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Novel MoS2/g-C3N4 heterojunction photocatalysts were synthesized via a simple impregnation and heating methods. The products were characterized by X-ray diffraction, transmission electron microscopy and UV-vis diffuse reflectance spectra. The photocatalytic activities of MoS2/g-C3N4 samples were evaluated based on the hydrogen evolution experiments under visible light irradiation (lambda > 400 nm). The UV-vis diffuse reflectance spectra revealed that the MoS2/g-C3N4 photocatalysts had strong absorption in the visible light region. The photocatalytic results indicated that the highest H-2 evolution rate of 23.10 mu mol.h(-1) was achieved on the 0.5 wt.% MoS2/g-C3N4 sample, which was enhanced by 11.3 times compared to pure g-C3N4. This study may provide an approach to the development of novel heterojunction photocatalysts for hydrogen production under visible light irradiation. (C) 2013 Elsevier Inc. All rights reserved.

引用

页码：70 / 73

页数：4

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