Preparation of Ordered Porous TiO2 Film from Honeycomb Structured TBT/PMMA Hybrid Film

doi:10.3724/SP.J.1077.2010.00485

Abstract

Abstract:

TBT/PMMA organic-inorganic hybrid honeycomb patterned film was prepared by Breath Figures method, then it was suffered vapor phase hydrothermal treatment and transformed into ordered porous TiO₂ film via pyrolysis process. The hole structure was investigated during the vapor phase hydrothermal treatment and pyrolysis process. The results show that, during the vapor phase hydrothermal treatment, TBT hydrolyzes to titanium hydrogen oxide hydrates, forming the strongerTiOnetworks, which therefore prevents the PMMA from “liquefied” in the pyrolysis process, as a result the ordered porous TiO₂film is obtained. Compared with non-hydrothermal treated TiO₂ film, the resulted ordered porous TiO₂ film enhances the photoelectrochemical response and its photocurrent density is increased by 3 times under UV light irradiation.

Key words: Breath Figures, vapor phase hydrothermal treatment, honeycomb pattern, TiO₂ film, ordered porous structure, photoelectrocatalysis

CLC Number:

O647

SHEN Yan-Ming, LIU Dan, WU Jing, LIU Ya-Qi, JI Sheng-Fei, LI Tian-Shu. Preparation of Ordered Porous TiO₂ Film from Honeycomb Structured TBT/PMMA Hybrid Film[J]. Journal of Inorganic Materials, 2010, 25(5): 485-489.

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Preparation of Ordered Porous TiO₂ Film from Honeycomb Structured TBT/PMMA Hybrid Film

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