Synergetic effect of MoS2 and MXene on the enhanced H2 evolution performance of CdS under visible light irradiation

被引：157

作者：

Chen, Ran ^{[1
]}

Wang, Peifang ^{[1
]}

Chen, Juan ^{[1
]}

Wang, Chao ^{[1
]}

Ao, Yanhui ^{[1
]}

机构：

[1] Hohai Univ, Coll Environm, Minist Educ, Key Lab Integrated Regulat & Resource Dev Shallow, 1 Xikang Rd, Nanjing 210098, Jiangsu, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2019年 / 473卷

基金：

中国国家自然科学基金;

关键词：

CdS; MoS2; MXene; Water splitting; PHOTOCATALYTIC HYDROGEN EVOLUTION; HIGHLY EFFICIENT COCATALYST; REDUCED GRAPHENE OXIDE; OXYGEN EVOLUTION; WATER; NANOSHEETS; NANORODS; HYBRID; FABRICATION; GENERATION;

D O I：

10.1016/j.apsusc.2018.12.071

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：

Water splitting under visible light irradiation over earth-abundant, inexpensive and high active catalysts is an effective and direct way to obtain renewable H-2 energy. Here, a kind of novel noble-metal-free composite photocatalyst with high hydrogen evolution performance was synthesized by a simple hydrothermal method. In the composite, MXene slice with excellent conductivity was used to promote the activity of CdS-MoS2 catalyst. A prominent H-2 generation rate of 9679 mu mnol.g(-1).h(-1) for the ternary composite was obtained under the irradiation of visible light (lambda = 420 nm). It exhibited a great enhancement by a factor of 251.3% in comparison with CdS-MoS2. The exceptional performance of CdS-MoS2-MXene was mainly arised from the high carrier mobility of MXene, which facilitates the separation of photoinduced electron-hole pairs. The present findings would provide a new direction towards exploring MXene-based composite photocatalysts with high photocatalytic performance in water splitting.

引用

页码：11 / 19

页数：9

共 80 条

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