Preparation of Ta-Doped TiO sub(2) Using Ta sub(2)O sub(5) as the Doping Source

A novel method for preparing Ta-doped TiO sub(2) via using Ta sub(2)O sub(5) as the doping source is proposed. The preparation process combines the hydrothermal fluorination of Ta sub(2)O sub(5) and the subsequent formation of Ta-doped TiO sub(2) sol. The results show that the doped sample annealed...

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Bibliographic Details
Published in:Chinese physics letters 2015-08, Vol.32 (8), p.088102-1-088102-4
Main Authors: Xu, Cheng, Lin, Di, Niu, Ji-Nan, Qiang, Ying-Huai, Li, Da-Wei, Tao, Chun-Xian
Format: Article
Language:English
Subjects:
Anatase
Annealing
Doping
Interstitials
Reflectance
Tantalum
Tantalum oxides
Titanium dioxide
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Summary:A novel method for preparing Ta-doped TiO sub(2) via using Ta sub(2)O sub(5) as the doping source is proposed. The preparation process combines the hydrothermal fluorination of Ta sub(2)O sub(5) and the subsequent formation of Ta-doped TiO sub(2) sol. The results show that the doped sample annealed at 393K generates an unstable intermediate NH sub(4)TiOF sub(3), which converts into anatase TiO sub(2) with the increase of temperature. After annealing at > or =673K, the Ta-doped TiO sub(2) nanocrystals with the grain size
ISSN:0256-307X
1741-3540
DOI:10.1088/0256-307X/32/8/088102