Influence of Sn Doping on Phase Transformation and Crystallite Growth of TiO 2 Nanocrystals

Sn doped TiO2 nanocrystals were synthesized via a single-step hydrothermal method and the influences of Sn doping on TiO2 have been investigated. It is found that Sn doping not only facilitates the crystal transfer from anatase to rutile but also facilitates the morphology change from sphere to rod....

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Bibliographic Details
Published in:Journal of nanomaterials 2014, Vol.2014 (2014), p.1-5
Main Authors: Yang, Yanqiu, Wei, Gang, Fu, Guozhu, Shu, Xin, Qiao, Ning, Deng, Li
Format: Article
Language:English
Subjects:
Alloys
Colleges & universities
Crystal structure
Microstructure
Nanocrystals
Nanomaterials
Phase transitions
Ratios
Scanning electron microscopy
Semiconductors
Spectrum analysis
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Summary:Sn doped TiO2 nanocrystals were synthesized via a single-step hydrothermal method and the influences of Sn doping on TiO2 have been investigated. It is found that Sn doping not only facilitates the crystal transfer from anatase to rutile but also facilitates the morphology change from sphere to rod. The states of Sn were studied by XPS and the creation of oxygen vacancies by Sn doping is confirmed. Moreover, the HRTEM results suggest that Sn facilitates preferential growth of resulting nanocrystals along (110) axis, which results in the formation of rod-like rutile nanocrystals.
ISSN:1687-4110
1687-4129
DOI:10.1155/2014/835450