Immobilization of photosynthetic pigments into silica-surfactant nanocomposite films

Hideo Hata, Tatsuo Kimura, Makoto Ogawa, Yoshiyuki Sugahara, Kazuyuki Kuroda

    Research output: Contribution to journalArticle

    15 Citations (Scopus)

    Abstract

    Highly transparent silica-surfactant nanocomposite films containing photosynthetic pigments have been successfully formed through the solubilization of chlorophyll a (Chl a) into surfactant micelles. The UV-vis absorption spectra indicated that a large amount of Chl a were transformed into pheophytin a in the films. These photosynthetic pigments were well dispersed in the surfactant assemblies and their chlorin rings were exposed to the surface of silica layers. Even under an air atmosphere, the photostability of immobilized pigments was largely improved in comparison with that in a homogeneous Chl a solution. Because both Chl a and pheophytin a molecules are effective for the photosensitive charge separation, the present film system is very suitable for heterogeneous immobilizing media for photosynthetic pigments from the viewpoint of in vitro biomimetic devices for solar energy conversion.

    Original languageEnglish
    Pages (from-to)543-547
    Number of pages5
    JournalJournal of Sol-Gel Science and Technology
    Volume19
    Issue number1-3
    DOIs
    Publication statusPublished - 2000 Dec

    Fingerprint

    Nanocomposite films
    chlorophylls
    Chlorophyll
    pigments
    immobilization
    Pigments
    Surface-Active Agents
    Silicon Dioxide
    nanocomposites
    Surface active agents
    surfactants
    Silica
    silicon dioxide
    solar energy conversion
    biomimetics
    Biomimetics
    Micelles
    polarization (charge separation)
    Energy conversion
    Solar energy

    ASJC Scopus subject areas

    • Ceramics and Composites

    Cite this

    Immobilization of photosynthetic pigments into silica-surfactant nanocomposite films. / Hata, Hideo; Kimura, Tatsuo; Ogawa, Makoto; Sugahara, Yoshiyuki; Kuroda, Kazuyuki.

    In: Journal of Sol-Gel Science and Technology, Vol. 19, No. 1-3, 12.2000, p. 543-547.

    Research output: Contribution to journalArticle

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