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Citation: 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, ;2014, 31(12): 1441-1446. doi: 10.3724/SP.J.1095.2014.40048 shu

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

1.
School of Chemical and Material Engineering;the Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, Jiangnan University, Wuxi 214122, China

Corresponding author: LIU Shirong,
Received Date: 20 February 2014
Available Online: 6 May 2014

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.
- sandwich-vacuum method,
- colloidal crystal template,
- three-dimensional ordered macroporous titanium dioxide,
- anatase
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