Synthesis and photocatalytic property of hectorite/(Pt,TiO2) and H4Nb6O17 /(Pt,TiO2) nanocomposites

Sambandan Ekambaram, Masaru Yanagisawa, Satoshi Uchida, Yoshinobu Fujishiro, Tsugio Sato

    Research output: Contribution to journalConference articlepeer-review

    5 Citations (Scopus)

    Abstract

    TiO2 and Pt have been intercalated in hectorite and H4Nb6O17. The height of TiO2 and Pt pillars was less than 0.8 nm and the band gap energy of TiO2 pillars was ca. 3.3 eV. Both hectorite/TiO2 and H4Nb6O17/(Pt,TiO2) were capable of hydrogen evolution following irradiation from a high pressure mercury arc (λ > 290 nm) in the presence of methanol as a sacrificial hole acceptor and the hydrogen evolution was enhanced by co-incorporation of Pt, although hectorite and hectorite/Pt did not show photocatalytic activity. Incorporation of Pt or Pt and TiO2 in the interlayer of H4Nb6O17 has resulted in enhanced photo evolution of hydrogen, however, TiO2 alone in the interlayer of H4Nb6O17 showed adverse photocatalytic activity.

    Original languageEnglish
    Pages (from-to)213-218
    Number of pages6
    JournalMolecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals
    Volume341
    DOIs
    Publication statusPublished - 2000 Jan 1
    Event10th International Symposium on Intercalation Compounds (ISIC 10) - Okasaki, Japan
    Duration: 1999 May 301999 Jun 3

    Keywords

    • Hexaniobate
    • Intercalation
    • Photocatalyst
    • Titania pillar

    ASJC Scopus subject areas

    • Condensed Matter Physics

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