Rapid Fabrication of Three-dimensional Ordered Macroporous Titanium Dioxide via Vacuum Filling of Colloidal Crystal Templates

doi:10.3724/SP.J.1095.2014.40048

Chinese Journal of Applied Chemistry

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Rapid Fabrication of Three-dimensional Ordered Macroporous Titanium Dioxide via Vacuum Filling of Colloidal Crystal Templates

ZHANG Chen, LIU Huanhuan, CHEN Mingqing, LIU Shirong^*

(School of Chemical and Material Engineering;the Key Laboratory of Food Colloids and
Biotechnology,Ministry of Education,Jiangnan University,Wuxi 214122,China)

Received:2014-02-20 Revised:2014-05-24 Published:2014-11-08 Online:2014-11-08
Contact: LIU Shirong

Abstract

Abstract: The three-dimensional ordered macroporous titanium dioxide(3DOM TiO2) was rapidly fabricated via a sandwich-vacuum method. In this method, tetrabutyl titanate in ethanol solution was filled in the voids between the acrylic acid-modified polystyrene(PS) colloidal crystals that served as the templates and calcified to form 3DOM TiO2. The template was removed during calcination. 3DOM TiO2 has a typical inverse opal structure, and the macropores are arranged in a face-centered cubic(fcc) structure and interconnect with each other by small windows. The average diameter of macroporores is about 230 nm with a shrinkage of about 14%. The XRD result shows that the structure of macropores calcined at 500 ℃ is anatase.

Key words: sandwich-vacuum method, colloidal crystal template, three-dimensional ordered macroporous titanium dioxide, anatase

CLC Number:

O647

ZHANG Chen, LIU Huanhuan, CHEN Mingqing, LIU Shirong*. Rapid Fabrication of Three-dimensional Ordered Macroporous Titanium Dioxide via Vacuum Filling of Colloidal Crystal Templates[J]. Chinese Journal of Applied Chemistry, DOI: 10.3724/SP.J.1095.2014.40048.

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Rapid Fabrication of Three-dimensional Ordered Macroporous Titanium Dioxide via Vacuum Filling of Colloidal Crystal Templates

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