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Journal of Nanomaterials
Volume 2014, Article ID 835450, 5 pages
Research Article

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

1State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
2Beijing Bioprocess Key Laboratory, Beijing University of Chemical Technology, Beijing 100029, China
3Amoy-BUCT Industrial of Biotechnovation Institute, Amoy 361026, China

Received 16 January 2014; Accepted 2 February 2014; Published 10 March 2014

Academic Editor: Shao-Wen Cao

Copyright © 2014 Guozhu Fu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


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.