Structure-controlled CdS(0D, 1D, 2D) embedded onto 2D ZnS porous nanosheets for highly efficient photocatalytic hydrogen generation

被引：23
|
作者：
Wang, Junmei [1 ,2 ]
Wang, Zhijian [1 ]
Li, Li [1 ]
Chen, Jiazang [1 ]
Zheng, Jianfeng [1 ]
Jia, Suping [1 ]
Zhu, Zhenping [1 ]
机构：
[1] Chinese Acad Sci, Inst Coal Chem, State Key Lib Coal Convers, Taiyuan 03001, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
来源：
RSC ADVANCES | 2017年 / 7卷 / 40期
基金：
中国国家自然科学基金;
关键词：
VISIBLE-LIGHT IRRADIATION; H-2; PRODUCTION; MESOPOROUS ZNS; EVOLUTION; WATER; COCATALYSTS; NANORODS; DRIVEN;
D O I：
10.1039/c7ra02565c
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The morphological characteristics of a photocatalyst is central to its photocatalytic activity for solar energy conversion. Herein, Pt-ZnS/CdS composites comprising ZnS nanosheets, embedded via the geometry and size modulation and tuning of band gap of CdS with 0D, 1D or 2D structure, were investigated for solar hydrogen production. The photoactivity results indicate that the shape and morphology of CdS in the Pt-ZnS/CdS heterojunction play a pivotal role in affecting the photocatalytic performance. CdS with a 1D structure deposited on porous Pt-ZnS nanosheets endow the heterojunction with increased efficiency for the separation and transport of photoinduced electron-hole pairs. The proposed mechanism for the boosted suppression of charge recombination was further confirmed by the transient photocurrent response and photoluminescence.
引用
收藏
页码：24864 / 24869
页数：6
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