Synthesis of Titania-Doped Mesoporous Silica and Its Gas Adsorbability.

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  • LI Xianying
    Department of Applied Chemistry, Faculty of Engineering, Kyushu University
  • UEHARA Masato
    Department of Applied Chemistry, Faculty of Engineering, Kyushu University
  • ENOMOTO Naoya
    Department of Applied Chemistry, Faculty of Engineering, Kyushu University
  • HOJO Junichi
    Department of Applied Chemistry, Faculty of Engineering, Kyushu University

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  • チタニア添加したメソポーラスシリカの合成及びそのガス吸着特性

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Sol-gel synthesis, characterization and a possible explanation for the formation of TiO2-modified SiO2 mesoporous materials are described. The effects of TEOS-aging time and Ti-quantity have been investigated systematically. Surface area above 1000m2/g was obtained with low quantity of Ti-loading when SiO2 gelation was only half completed. The higher sorption capacity for water was interrelated to higher acidity. Phase separation may occur in the Ti-rich region.

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