Preparation of Crystalline Sn-Doped TiO 2 and Its Application in Visible-Light Photocatalysis

Sn-doped TiO 2 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...

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Bibliographic Details
Published inJournal of nanomaterials Vol. 2011; pp. 1 - 5
Main Authors Xiufeng, Zhou, Juan, Lu, Lianghai, Li, Zuoshan, Wang
Format Journal Article
LanguageEnglish
Published 01.12.2011
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Summary:Sn-doped TiO 2 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 Ti 4+ by adjusting the flow speed of water vapor. Meanwhile, the photocatalytic properties of Sn-doped TiO 2 were tested, and the results showed that doping an appropriate amount of Tin would improve the photocatalytic activity of TiO 2 by enhancing the separation rate of photogenerated electrons and holes on the surface of TiO 2 . In addition, the calcination temperature and Tin content had an important influence on the photocatalytic activity of TiO 2 . When the mix ratio of Sn:Ti reached 1%, and the nano-Sn-TiO 2 sample was calcined at , it showed the best photocatalytic activity.
ISSN:1687-4110
1687-4129
DOI:10.1155/2011/432947