Photocatalytic H2 evolution on CdS modified with partially crystallized MoS2 under visible light irradiation

被引：22

作者：

Bo, Tingting ^{[1
]}

Wang, Yongzhao ^{[2
]}

Wang, Juan ^{[1
]}

Zhao, Zhiliang ^{[1
]}

Zhang, Jing ^{[1
]}

Zheng, Kang ^{[1
]}

Lin, Tsungwu ^{[3
]}

Zhang, Bingsen ^{[2
]}

Shao, Lidong ^{[1
]}

机构：

[1] Shanghai Univ Elect Power, Shanghai Key Lab Mat Protect & Adv Mat Elect Powe, 2103 Pingliang Rd, Shanghai 200090, Peoples R China

[2] Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China

[3] Tunghai Univ, Dept Chem, 181,Sec 3,Taichung Port Rd, Taichung 40704, Taiwan

来源：

CHEMICAL PHYSICS LETTERS | 2020年 / 746卷

基金：

中国国家自然科学基金;

关键词：

MoS2; CdS; Hydrogen evolution; Partially crystallized; Photocatalysis; HYDROGEN-EVOLUTION; EFFICIENT COCATALYST; MOLYBDENUM SULFIDES; NANOROD ARRAYS; GRAPHENE; MECHANISM; WATER; GENERATION; ELECTRON; CATALYST;

D O I：

10.1016/j.cplett.2020.137305

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：

We report a facile route to obtain MoS2/CdS heterostructure and tested for hydrogen production activity under visible light irradiation. The MoS2/CdS heterostructure containing 15 wt% MoS2 exhibits the highest H-2 pro- duction rate of 27.720 mmol g(-1) h(-1), which is 30.7 times higher than CdS alone. This promotion of photo- catalytic activity can be assigned to the modification of MoS2 on CdS surfaces by forming interfacial interactions, which effectively inhibits the recombination of photo-generated electrons and holes. Meanwhile, MoS2 exhibits a partially crystallized status, providing abundant exposed edges with coordinatively unsaturated S and Mo atoms as the photocatalytic active sites, thus facilitating hydrogen production.

引用

页数：7

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