Fabrication of CdS nanowires decorated with TiO2 nanoparticles for photocatalytic hydrogen production under visible light irradiation

被引:171
作者
Jang, Jum Suk [1 ]
Kim, Hyun Gyu [2 ]
Joshi, Upendra A. [1 ]
Jang, Ji Wook [1 ]
Lee, Jae Sung [1 ]
机构
[1] Pohang Univ Sci & Technol, Dept Chem Engn, Ecofriendly Catalysis & Energy Lab, Pohang 790784, South Korea
[2] Korea Basic Sci Inst, Busan Ctr, Pusan 609735, South Korea
关键词
CdS nanowires; TiO2; nanoparticles; Composite; H-2; evolution; Photocatalysis;
D O I
10.1016/j.ijhydene.2008.07.105
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
A CdS/TiO2 composite photocatalyst consisting of one-dimensional CdS nanowire (NW) with a high crystallinity decorated with nanosized TiO2 particles (NP) was fabricated by solvothermal method and sol-gel synthesis. The new configuration photocatalyst exhibited higher rate of hydrogen production than that of single CdS NW under visible light irradiation (lambda >= 420 nm) from water containing sulfide and sulfite ions as hole scavengers. Physicochemical properties of CdS NW/TiO2 NP composite photocatalysts were investigated together with the effect of the mole ratio of TiO2 and CdS for photocatalytic hydrogen production from water under visible light irradiation. (C) 2008 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:5975 / 5980
页数:6
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