Chem. J. Chinese Universities ›› 2010, Vol. 31 ›› Issue (11): 2136.

• Articles • Previous Articles     Next Articles

Synthesis and Characteristic of Pore Size-tailored Self-supporting Mesoporous Film via Solvent Evaporation Induced Self-assembly

YU Yi-Xuan, LIU Jian, NAN Hai-Ming, LIU Xi, CAI Qiang*, LI Heng-De   

  1. Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
  • Received:2010-03-24 Online:2010-11-10 Published:2010-11-10
  • Contact: CAI Qiang. E-mail: caiqiang@mail.tsinghua.edu.cn
  • Supported by:

    国家“八六三”计划项目(批准号: 041403311)资助.

Abstract: Mesoporous silica films with pore diameters of 1.7—3.1 nm were synthesized through evaporation induced self-assembly using CTAB as surfactant and TEOS as Si source in weak acid media. The films were flexible, self-supporting and centimeter-sized with wormhole-like channel systems. By controlling the solvent remove process, the pore size of films could be tailored without negative influence on the pore size uniformity. A fast volatilization speed would lead to a large pore size, while a slow volatilization speed would result in a small pore size.

Key words: Mesoporous film, Solvent evaporation induced self-assembly, Pore size tailoring

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