Effect of Heat Treatment on the Microstructure of TiO2 Nanofibers Prepared by Refluxing in Basic Solution

Abstract:

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Using tetrabutyltitanate as titanium source, amorphous TiO2 powder was firstly prepared by a sol–miniemulsion–gel method. Prepared powder was refluxed in basic solution and then calcined at different temperatures to synthesize titania nanofibers. The prepared samples were characterized by XRD, TG–DSC, FT–IR and TEM. The results show that when the heat–treatment temperature increases, crystallization of the titania nanofibers occurs with two Ti–OH bonds dehydrate, meanwhile morphology of the fibers is gradually obvious and ratio of length to diameter decreases. When the temperature was raised above 550 °C, titania nanofibers were sintered.

Info:

Periodical:

Key Engineering Materials (Volumes 368-372)

Edited by:

Wei Pan and Jianghong Gong

Pages:

800-802

DOI:

10.4028/www.scientific.net/KEM.368-372.800

Citation:

S. Y. Zhang et al., "Effect of Heat Treatment on the Microstructure of TiO2 Nanofibers Prepared by Refluxing in Basic Solution", Key Engineering Materials, Vols. 368-372, pp. 800-802, 2008

Online since:

February 2008

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Price:

$35.00

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