EFFECT OF PRETREATMENT ON SUPERHYDROPHILICITY OF TiO2 FILMS

doi:10.7517/j.issn.1674-0475.2000.03.204

Abstract

Abstract: High humidity and UV-light irradiation were used to pretreat the precursor films of TiO₂.It’s shown that the pretreatment could enhance the superhydrophilicity of the resulting films and an optimization time existed.IR and Raman results showed that hydrolysis and condensation were promoted by pretreatment.The superhydrophilicity could last several weeks in the dark.Large amount of acid pinkie red was adsorbed on superhydrophilic TiO₂ films and underwent photodegradation gradually.

Key words: pretreatment, TiO₂, superhydrophilicity, photocatalytic property

CLC Number:

GUAN Zi-sheng, MA Ying, CAO Ya-an, ZHANG Xin-tong, YAO Jian-nian . EFFECT OF PRETREATMENT ON SUPERHYDROPHILICITY OF TiO₂ FILMS[J]. Imaging Science and Photochemistry, 2000, 18(3): 204-207.

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EFFECT OF PRETREATMENT ON SUPERHYDROPHILICITY OF TiO₂ FILMS

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