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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Published in | Journal of nanomaterials Vol. 2011; pp. 1 - 5 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
01.12.2011
|
Online Access | Get full text |
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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. |
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ISSN: | 1687-4110 1687-4129 |
DOI: | 10.1155/2011/432947 |