Energy band structure and photocatalytic activity of Sn-doped TiO2 thin film

被引：0

作者：

Zheng, Shu-Kai ^{[1
,2
]}

Wu, Guo-Hao ^{[1
,2
]}

Zhang, Jun-Ying ^{[3
]}

Kang, Jian-Nan ^{[1
,2
]}

Wang, Fang ^{[1
,2
]}

Zhao, Rui ^{[1
,2
]}

Liu, Su-Ping ^{[1
,2
]}

Liu, Lei ^{[1
,2
]}

机构：

[1] College of Electronic and Informational Engineering, Hebei University, Baoding 071002, Hebei

[2] Research Center for Computational Materials, Hebei University, Baoding 071002, Hebei

[3] School of Physics and Nuclear Energy Engineering, Beihang University

来源：

Cailiao Gongcheng/Journal of Materials Engineering | 2014年 / 01期

关键词：

Energy band structure; Photocatalysis;

D O I：

10.3969/j.issn.1001-4381.2014.01.013

中图分类号：

学科分类号：

摘要：

TiO2 thin films were successfully deposited onto microscope glass substrates by using RF sputtering technology. Then Sn ions were implanted into the TiO2 thin film with ion implantation method. The photocatalytic activities of the Sn-doped and un-doped TiO2 thin films under visible light were evaluated by the photodegradation of methylene blue dye solution. The results indicate that the photocatalytic activity of the Sn-doped anatase TiO2 thin film is enhanced under the visible light irradiation. The energy band structures of the Sn-doped and un-doped TiO2 were calculated by the first-principle based on density functional theory (DFT). The Sn doping takes slight effect on the band structure of TiO2, whereas doping energy level is formed by Sn 5s orbit near the bottom of the TiO2 valence band.

引用

页码：70 / 74

页数：4

共 14 条

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