The optical absorption and hydrogen production by water splitting of (Si,Fe)-codoped anatase TiO2 photocatalyst

被引：59
|
作者：
Lin, Yanming [1 ,2 ,3 ]
Jiang, Zhenyi [1 ]
Zhu, Chaoyuan [2 ,3 ]
Hu, Xiaoyun [4 ]
Zhu, Haiyan [1 ]
Zhang, Xiaodong [1 ]
Fan, Jun [5 ]
Lin, Sheng Hsien [2 ,3 ,6 ]
机构：
[1] NW Univ Xian, Inst Modern Phys, Xian 710069, Peoples R China
[2] Natl Chiao Tung Univ, Inst Mol Sci, Dept Appl Chem, Hsinchu 30050, Taiwan
[3] Natl Chiao Tung Univ, Ctr Interdisciplinary Mol Sci, Hsinchu 30050, Taiwan
[4] NW Univ Xian, Dept Phys, Xian 710069, Peoples R China
[5] NW Univ Xian, Sch Chem Engn, Xian 710069, Peoples R China
[6] Acad Sinica, Inst Atom & Mol Sci, Taipei 106, Taiwan
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2013年 / 38卷 / 13期
基金：
中国国家自然科学基金;
关键词：
TiO2; Codoped; Photocatalytic activity for hydrogen production; Density functional theory;
D O I：
10.1016/j.ijhydene.2013.02.079
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 electronic and optical properties are studied using the density functional theory in (Si,Fe)-codoped anatase TiO2. The calculated results suggest that the synergistic effects of (Si,Fe) codoping can effectively induce the redshift of optical absorption edge, which leads to higher visible-light photocatalytic activity for hydrogen production by water splitting than pure anatase TiO2. To verify the reliability of our calculated results, nanocrystalline (Si,Fe)-codoped TiO2 is synthesized by a sol-gel-solvothermal method, and excellent absorption performance and photocatalytic activity for hydrogen production by water splitting are observed in our experiments. Copyright (C) 2013, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：5209 / 5214
页数：6
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