Photochromism of an azobenzene in a nanoporous silica film

M. Ogawa, J. Mori, Kazuyuki Kuroda

    Research output: Contribution to journalArticle

    4 Citations (Scopus)

    Abstract

    The incorporation of a cationic azobenzene derivative, p-(ω-dimethylethanolammonioethoxy)-azobenzene bromide, into nanoporous silica films and the photochemical reactions of the adsorbed dye were investigated. The nanoporous silica films were prepared from tetramethoxysilane and octadecyltrimethylammonium chloride by the rapid solvent evaporation method which we have reported previously. The adsorption of the cationic azo dye was conducted by casting an ethanol solution of the dye onto the nanoporous silica films. Upon UV light irradiation, frans-azobenzene isomerized photochemically to the cis-form and photochemically formed cis-form turned back to the trans-form upon visible light irradiation. The nanoporous silica films were proved to be an excellent reaction media to immobilize organic photocromic species.

    Original languageEnglish
    Pages (from-to)865-870
    Number of pages6
    JournalStudies in Surface Science and Catalysis
    Volume129
    Publication statusPublished - 2000

    Fingerprint

    Photochromism
    photochromism
    Azobenzene
    Silicon Dioxide
    Silica
    silicon dioxide
    dyes
    Coloring Agents
    Azo Compounds
    Dyes
    Irradiation
    irradiation
    Azo dyes
    Photochemical reactions
    Bromides
    Ultraviolet radiation
    photochemical reactions
    Chlorides
    bromides
    Casting

    ASJC Scopus subject areas

    • Physical and Theoretical Chemistry
    • Catalysis

    Cite this

    Photochromism of an azobenzene in a nanoporous silica film. / Ogawa, M.; Mori, J.; Kuroda, Kazuyuki.

    In: Studies in Surface Science and Catalysis, Vol. 129, 2000, p. 865-870.

    Research output: Contribution to journalArticle

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