Preparation of aluminum-containing mesoporous silica films

Makoto Ogawa, Kazuyuki Kuroda, Jun Ichi Mori

    Research output: Contribution to journalArticle

    35 Citations (Scopus)

    Abstract

    Aluminum-containing mesoporous silica films were synthesized by the solvent evaporation method using tetraethoxysilane, aluminum tri(sec-butoxide), and octadecyltrimethylammonium chloride as the silica source, the alumina source, and a supramolecular template, respectively. The Al/Si ratios were 0.004-0.031 in the present synthesis. The resulting films with the Al/Si ratios of 0.004, 0.013, and 0.022 were highly transparent in the wavelength region of 200-800 nm. The porous structures of the aluminum-containing films were characterized by X-ray diffraction, transmission electron microscopy, and nitrogen adsorption. Although the hexagonal pore arrangements were disordered to some extent by the addition of aluminum, the pore size uniformity was confirmed by the nitrogen adsorption isotherms. The cation exchange ability was evaluated by the adsorption of a cationic azobenzene derivative, p-(ω-dimethyl-hydroxyethylammonioethoxy)-azobenzene bromide, which was not adsorbed effectively on a siliceous mesoporous film. The cation exchange ability of the aluminum-containing mesoporous silica films was semiquantitatively controlled by the amount of added aluminum.

    Original languageEnglish
    Pages (from-to)744-749
    Number of pages6
    JournalLangmuir
    Volume18
    Issue number3
    DOIs
    Publication statusPublished - 2002 Feb 5

    Fingerprint

    Aluminum
    Silicon Dioxide
    Silica
    silicon dioxide
    aluminum
    preparation
    Azobenzene
    adsorption
    Cations
    Ion exchange
    Nitrogen
    Positive ions
    porosity
    Adsorption
    nitrogen
    cations
    Aluminum Oxide
    Bromides
    Adsorption isotherms
    Pore size

    ASJC Scopus subject areas

    • Colloid and Surface Chemistry
    • Physical and Theoretical Chemistry

    Cite this

    Preparation of aluminum-containing mesoporous silica films. / Ogawa, Makoto; Kuroda, Kazuyuki; Mori, Jun Ichi.

    In: Langmuir, Vol. 18, No. 3, 05.02.2002, p. 744-749.

    Research output: Contribution to journalArticle

    Ogawa, Makoto ; Kuroda, Kazuyuki ; Mori, Jun Ichi. / Preparation of aluminum-containing mesoporous silica films. In: Langmuir. 2002 ; Vol. 18, No. 3. pp. 744-749.
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