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Proceedings Paper

Compound TiO2 nanocrystals synthesized by hydrothermal method
Author(s): Shuhua Liu; Sanling Fu; Yanshuang Kang
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Paper Abstract

In this work, rutile Sn-doped TiO2 nanocrystals are synthesized by hydrothermal method, with TiCl4 and SnCl4 aqueous solutions serve as the precursors. When the TiCl4 and SnCl4·5H2O serve as precursors with ratio of Ti4+/Sn4+ 4:1, most of the Synthesized crystals are square morphology, with diameter of 30nm. When the ratio of Ti4+/Sn4+ changed to about 1:1, the obtained samples display various kinds of morphology. Some of them are tiny square crystals with the size less than 20nm. The bigger ones is about 100-120nm in length and 30-50nm in diameter. And the aspect ratio is about 3:1. When the ratio of Ti4+/Sn4+ is 0:1, the crystals is 20nm in diameter, and 30-120nm in length. The results indicate that combination of Ti4+ and Sn4+ has relative evident effect on the crystals morphology. The component of the obtained samples has been analyzed by X-ray energy dispersive spectroscopy (EDS). The result shows that the highest atomic percent concentration of the doped-Sn is very low. The experiments results indicate that it is hard for other metal ions to dope into the rutile TiO2 by the way of lattice-substitute.

Paper Details

Date Published: 24 August 2009
PDF: 6 pages
Proc. SPIE 7381, International Symposium on Photoelectronic Detection and Imaging 2009: Material and Device Technology for Sensors, 73811C (24 August 2009); doi: 10.1117/12.835208
Show Author Affiliations
Shuhua Liu, Agricultural Univ. of Hebei (China)
Sanling Fu, Science and Technology Univ. of Henan (China)
Yanshuang Kang, Agricultural Univ. of Hebei (China)


Published in SPIE Proceedings Vol. 7381:
International Symposium on Photoelectronic Detection and Imaging 2009: Material and Device Technology for Sensors
Xu-yuan Chen; Yue-lin Wang; Zhi-ping Zhou; Qing-kang Wang, Editor(s)

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