An Experimental Study on the Shape Changes of TiO2 Nanocrystals Synthesized by Microemulsion-Solvothermal MethodReportar como inadecuado




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Journal of NanomaterialsVolume 2011 2011, Article ID 467083, 6 pages

Research Article

State Key Laboratory of Silicon Materials, Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China

Center of Analysis and Measurement, Zhejiang University, Hangzhou 310029, China

Received 19 March 2010; Revised 22 April 2010; Accepted 14 June 2010

Academic Editor: William W. Yu

Copyright © 2011 Wei Kong 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.

Abstract

Titanium dioxide Ti nanocrystals of different shape were successfully synthesized in a new microemulsion system through a solvothermal process. The Ti nanocrystals were prepared from the reaction of tetrabutyl titanate TBT, O, and oleic acid OA, which were used as solvent and surfactant at 300 and 240 in a stainless steel autoclave. The sphere, polygon, and rhombus-shaped nanocrystals have been prepared at 300 and the dot- and- rod shaped nanocrystals have been synthesized at 240 . The effect of the reaction time on the shape and size of Ti nanocrystals in this method was studied in the present paper. The size distribution of Ti nanocrystals prepared at 300 for different hours is also studied. In addition, an attempt to describe the mechanism of shape change of Ti nanocrystals was presented in this paper.





Autor: Wei Kong, Bo Liu, Bo Ye, Zhongping Yu, Hua Wang, Guodong Qian, and Zhiyu Wang

Fuente: https://www.hindawi.com/



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