Preparation of Titanium Dioxide Fibers and Their Photocatalysis Reactivity

Abstract

Abstract: Titanium dioxide fibers(TiO₂) were prepared from K₂Ti 4O₉ fiber precursors by ion exchange reaction in hydrochloric acid. The photocatalytic reactivity of titanium dioxide fibers was studied with helianthin Bas a model compound of waste water and the property of suspension sedimentation at different pHvalues was studied. The results show that TiO₂ fibers have good photocatalysis properties equivalent to the commercial micron size TiO₂. Furthermore, the serious agglomeration appears at pH=6.0 and can be easily separated from solution.

Key words: Titanium dioxide fibers, Photocatalysis, Helianthin B, Treatment of waste water, Properties of suspension sedimentation

CLC Number:

O643.1

TrendMD:

YANG Zhu-Hong, BAO Ning-Zhong, LIU Chang, FENG Xin, XIE Jing-Wei, JI Xiao-Yan, LU Xiao-Hua . Preparation of Titanium Dioxide Fibers and Their Photocatalysis Reactivity[J]. Chem. J. Chinese Universities, 2002, 23(7): 1371.

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Preparation of Titanium Dioxide Fibers and Their Photocatalysis Reactivity

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