Preparation of Crystalline Sn-Doped TiO2 and Its Application in Visible-Light Photocatalysis
Sn-doped TiO2 nanoparticles were prepared by the vapor transport method of water molecules and characterized by XRD and XPS analyses. The TEM images indicated that as-prepared samples were highly dispersed nanoparticles with a small and uniform size below 20 nm, as it would effectively control the r...
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Series: | Journal of Nanomaterials |
Online Access: | http://dx.doi.org/10.1155/2011/432947 |
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doaj-eedbd785b7434b9e80b9da936add1e5a2020-11-24T22:36:21ZengHindawi LimitedJournal of Nanomaterials1687-41101687-41292011-01-01201110.1155/2011/432947432947Preparation of Crystalline Sn-Doped TiO2 and Its Application in Visible-Light PhotocatalysisZhou Xiufeng0Lu Juan1Li Lianghai2Wang Zuoshan3College of Chemistry, Chemical Engineering and Materials Science, SooChow University, SooChow 215021, ChinaCollege of Chemistry, Chemical Engineering and Materials Science, SooChow University, SooChow 215021, ChinaCollege of Chemistry, Chemical Engineering and Materials Science, SooChow University, SooChow 215021, ChinaCollege of Chemistry, Chemical Engineering and Materials Science, SooChow University, SooChow 215021, ChinaSn-doped TiO2 nanoparticles were prepared by the vapor transport method of water molecules and characterized by XRD and XPS analyses. The TEM images indicated that as-prepared samples were highly dispersed nanoparticles with a small and uniform size below 20 nm, as it would effectively control the rate of hydrolysis of Ti4+ by adjusting the flow speed of water vapor. Meanwhile, the photocatalytic properties of Sn-doped TiO2 were tested, and the results showed that doping an appropriate amount of Tin would improve the photocatalytic activity of TiO2 by enhancing the separation rate of photogenerated electrons and holes on the surface of TiO2. In addition, the calcination temperature and Tin content had an important influence on the photocatalytic activity of TiO2. When the mix ratio of Sn:Ti reached 1%, and the nano-Sn-TiO2 sample was calcined at 400oC, it showed the best photocatalytic activity.http://dx.doi.org/10.1155/2011/432947 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Zhou Xiufeng Lu Juan Li Lianghai Wang Zuoshan |
spellingShingle |
Zhou Xiufeng Lu Juan Li Lianghai Wang Zuoshan Preparation of Crystalline Sn-Doped TiO2 and Its Application in Visible-Light Photocatalysis Journal of Nanomaterials |
author_facet |
Zhou Xiufeng Lu Juan Li Lianghai Wang Zuoshan |
author_sort |
Zhou Xiufeng |
title |
Preparation of Crystalline Sn-Doped TiO2 and Its Application in Visible-Light Photocatalysis |
title_short |
Preparation of Crystalline Sn-Doped TiO2 and Its Application in Visible-Light Photocatalysis |
title_full |
Preparation of Crystalline Sn-Doped TiO2 and Its Application in Visible-Light Photocatalysis |
title_fullStr |
Preparation of Crystalline Sn-Doped TiO2 and Its Application in Visible-Light Photocatalysis |
title_full_unstemmed |
Preparation of Crystalline Sn-Doped TiO2 and Its Application in Visible-Light Photocatalysis |
title_sort |
preparation of crystalline sn-doped tio2 and its application in visible-light photocatalysis |
publisher |
Hindawi Limited |
series |
Journal of Nanomaterials |
issn |
1687-4110 1687-4129 |
publishDate |
2011-01-01 |
description |
Sn-doped TiO2 nanoparticles were prepared by the vapor transport method of water molecules and characterized by XRD and XPS analyses. The TEM images indicated that as-prepared samples were highly dispersed nanoparticles with a small and uniform size below 20 nm, as it would effectively control the rate of hydrolysis of Ti4+ by adjusting the flow speed of water vapor. Meanwhile, the photocatalytic properties of Sn-doped TiO2 were tested, and the results showed that doping an appropriate amount of Tin would improve the photocatalytic activity of TiO2 by enhancing the separation rate of photogenerated electrons and holes on the surface of TiO2. In addition, the calcination temperature and Tin content had an important influence on the photocatalytic activity of TiO2. When the mix ratio of Sn:Ti reached 1%, and the nano-Sn-TiO2 sample was calcined at 400oC, it showed the best photocatalytic activity. |
url |
http://dx.doi.org/10.1155/2011/432947 |
work_keys_str_mv |
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