TiO2 nanotubes incorporated with CdS for photocatalytic hydrogen production from splitting water under visible light irradiation

被引：216

作者：

Li, Caolong ^{[1
,2
]}

Yuan, Jian ^{[1
]}

Han, Bingyan ^{[1
]}

Jiang, Li ^{[1
]}

Shangguan, Wenfeng ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Res Ctr Combust & Environm Technol, Shanghai 200240, Peoples R China

[2] Kunming Univ Sci & Technol, Dept Appl Chem, Kunming 650093, Yunnan, Peoples R China

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2010年 / 35卷 / 13期

关键词：

Hydrogen production; Photocatalysis; CdS/TiO2; Nanotube; TITANATE NANOTUBES; STRUCTURAL FEATURES; NANOPARTICLES; ELECTRON;

D O I：

10.1016/j.ijhydene.2010.01.008

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：

The CdS/TiO2 composites were synthesized using titanate nanotubes (TiO2NTs) with different pore diameters as the precursor by simple ion change and followed by sulfurization process at a moderate temperature. Some of results obtained from XRD, TEM, BET, UV-vis and PL analysis confirmed that cadmium sulfide nanoparticles (CdSNPs) incorporated into the titanium dioxide nanotubes. The photocatalytic production of H-2 was remarkably enhanced when CdS nanoparticles was incorporated into TiO2NTs. The apparent quantum yield for hydrogen production reached about 43.4% under visible light around lambda = 420 nm. The high activity might be attributed to the following reasons: (1) the quantum size effect and homogeneous distribution of CdSNPs; (2) the synergetic effects between CdS particles and TiO2NTs, viz., the potential gradient at the interface between CdSNPs and TiO2NTs. (C) 2010 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved.

引用

页码：7073 / 7079

页数：7

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