Nanoscale Structure Control of Titania/Surfactant Composite Particles Prepared with Catanionic Surfactant Mixtures as Structure Directing Agents

DOI Web Site 28 References
  • SAKAI Hideki
    Department of Pure and Applied Chemistry, Faculty of Science and Technology, Tokyo University of Science Research Institute of Science and Technology, Tokyo University of Science
  • KOHNO Hiroki
    Department of Pure and Applied Chemistry, Faculty of Science and Technology, Tokyo University of Science
  • HAGIWARA Hideki
    Department of Pure and Applied Chemistry, Faculty of Science and Technology, Tokyo University of Science
  • OGURA Taku
    Department of Pure and Applied Chemistry, Faculty of Science and Technology, Tokyo University of Science
  • SHIBATA Hirobumi
    Research Institute of Science and Technology, Tokyo University of Science Department of Material Science and Technology, Faculty of Industrial Science and Technology
  • SAKAI Kenichi
    Department of Pure and Applied Chemistry, Faculty of Science and Technology, Tokyo University of Science
  • OHKUBO Takahiro
    Graduate School of Natural Science and Technology, Okayama University
  • ABE Masahiko
    Department of Pure and Applied Chemistry, Faculty of Science and Technology, Tokyo University of Science Department of Material Science and Technology, Faculty of Industrial Science and Technology

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Other Title
  • カチオン／アニオン界面活性剤混合系を利用したチタニア／界面活性剤複合粒子の調製とナノ構造制御
  • カチオン アニオン カイメン カッセイザイ コンゴウケイ オ リヨウシタ チタニア カイメン カッセイザイ フクゴウ リュウシ ノ チョウセイ ト ナノ コウゾウ セイギョ

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Titania/surfactant composite particles with nanoscale ordered structure have been prepared by hydrolysis and condensation reactions of titanium oxysulfate in the presence of molecular assemblies formed at aqueous mixtures of cationic and anionic surfactants as structure-directing agents. When cetyltrimethylammonium bromide (CTAB) and sodium octylsulfate (SOS) were used as cationic and anionic surfactants, respectively, particles with hexagonal type ordered nanostructure were obtained at CTAB-rich compositions and their repetition unit increased with increasing SOS content, while the hexagonal structure changed to lamellar structure at a certain SOS content and the repetition unit decreased above this content. These results showed that precise control of geometry and size of the nanoscale-ordered structure is possible by manipulation of the compositions of cationic CTAB and anionic SOS.

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