期刊
JOURNAL OF NANOMATERIALS
卷 2011, 期 -, 页码 -出版社
HINDAWI LTD
DOI: 10.1155/2011/467083
关键词
-
资金
- Zhejiang Provincial Natural Science Foundation of China [Z4080021]
Titanium dioxide (TiO2) nanocrystals of different shape were successfully synthesized in a new microemulsion system through a solvothermal process. The TiO2 nanocrystals were prepared from the reaction of tetrabutyl titanate (TBT), H2O, and oleic acid (OA), which were used as solvent and surfactant at 300 degrees C and 240 degrees C in a stainless steel autoclave. The sphere, polygon, and rhombus-shaped nanocrystals have been prepared at 300 degrees C and the dot- and- rod shaped nanocrystals have been synthesized at 240 degrees C. The effect of the reaction time on the shape and size of TiO2 nanocrystals in this method was studied in the present paper. The size distribution of TiO2 nanocrystals prepared at 300 degrees C for different hours is also studied. In addition, an attempt to describe the mechanism of shape change of TiO2 nanocrystals was presented in this paper.
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