ZnS/CuS nanotubes for visible light-driven photocatalytic hydrogen generation

被引：36
|
作者：
Shao, Yi-Biao [1 ]
Wang, Long-Hao [1 ]
Huang, Jian-Hua [1 ]
机构：
[1] Zhejiang Sci Tech Univ, Dept Chem, Hangzhou 310018, Zhejiang, Peoples R China
来源：
RSC ADVANCES | 2016年 / 6卷 / 87期
基金：
中国国家自然科学基金;
关键词：
SOLID-SOLUTION PHOTOCATALYSTS; H-2; EVOLUTION; DOPED ZNS; ONE-STEP; IRRADIATION; COMPOSITE; WATER; SEMICONDUCTOR; EFFICIENT; SULFIDE;
D O I：
10.1039/c6ra17046c
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
ZnS/CuS nanotubes are synthesized by using ZnO nanorods as the precursor, followed by sulfuration and subsequent cation exchange reaction. The deposition of CuS on ZnS nanotubes are confirmed by EDS analysis, XPS and UV-Vis diffuse reflectance spectroscopy. HRTEM images clearly display the heterojunctions between ZnS and CuS nanoparticles. ZnS/CuS nanotubes exhibit good photocatalytic activity for H-2 generation without cocatalysts under visible light irradiation (lambda > 420 nm). The H-2 generation rate depends on the CuS content in the ZnS/CuS nanotubes. The highest H-2 generation rate is 85 times higher than that of copper-free ZnS tubes. The highly improved performance for H-2 evolution is supposed to originate from the formation of heterojunctions between ZnS and CuS nanoparticles.
引用
收藏
页码：84493 / 84499
页数：7
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