MoS2-coated ZnO nanocomposite as an active heterostructure photocatalyst for hydrogen evolution

被引：49

作者：

Zhang, Shibao ^{[1
]}

Tang, Fumin ^{[1
]}

Liu, Jinkun ^{[1
]}

Che, Wei ^{[1
]}

Su, Hui ^{[1
]}

Liu, Wei ^{[1
]}

Huang, Yuanyuan ^{[1
]}

Jiang, Yong ^{[1
]}

Yao, Tao ^{[1
]}

Liu, Qinghua ^{[1
]}

Wei, Shiqiang ^{[1
]}

机构：

[1] Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230029, Anhui, Peoples R China

来源：

RADIATION PHYSICS AND CHEMISTRY | 2017年 / 137卷

基金：

中国国家自然科学基金;

关键词：

MoS2; ZnO; Photocatalytic H-2 evolution; PL spectroscopy; WATER; MOS2; PHOTOLUMINESCENCE; CATALYST; GRAPHENE;

D O I：

10.1016/j.radphyschem.2016.09.026

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：

To obtain an efficient photocatalyst for solar energy conversion is a key issue in photocatalytic water splitting. Here, we have synthesized MoS2-coated ZnO nanocomposite photocatalyst and investigated the structure performance relationship by UV-vis absorption and photoluminescence (PL) spectroscopy. Under the simulated sunlight irradiation, the MoS2-coated ZnO nanocomposite in aqueous Na2SO3 solution achieves a high H-2 production rate of 1410 mu mol/g/h, 5.8 times higher than that of pristine ZnO nanoparticles. The UV- vis spectra and PL results reveal that the MoS2 coated on the 'surface of ZnO nanoparticles can significantly facilitate the photoexcited electrons transfer and suppress the recombination of the electrons and holes, thus increasing the H-2 evolution activity of the composite system.

引用

页码：104 / 107

页数：4

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