Preparation of Propanethiol-Modified Nanoporous Silica Spherical Particles

  • Ogawa Makoto
    Graduate School of Science and Engineering, Waseda University Department of Earth Sciences, Waseda University
  • Kato Kei
    Graduate School of Science and Engineering, Waseda University
  • Shimura Naoki
    Graduate School of Science and Engineering, Waseda University

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Spherical particles of nanoporous silica (with a diameter of 600 nm) containing mercaptopropylsilyl groups on the pore surface were synthesized by a modified Stöber method and subsequently silylated using (3-mercaptopropyl)trimethoxysilane. The spherical particles of organosilica formed an artificial opal structure by simply casting the suspension (water dimethylformamide mixture) on a mercaptopropylsilylated Si wafer.

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