Synthesis of HTaWO6/(Pt, TiO2) nanocomposite with high photocatalytic activities for hydrogen evolution and nitrogen monoxide destruction

Shu Yin, Daisaku Maeda, Masayuki Ishitsuka, Jihuai Wu, Tsugio Sato

    Research output: Contribution to journalConference articlepeer-review

    25 Citations (Scopus)

    Abstract

    HTaWO6/(Pt, TiO2) nanocomposite was synthesized by successive intercalation reactions of HTaWO6 with Pt(NH3)42+, C3H7NH2/heptane mixed solution and TiO2 acidic sol, followed by UV irradiation. The height of TiO2 and Pt pillar is less than 0.51 nm. The host HTaWO6 was white and possessed band gap energy of 3.11 eV, whereas the HTaWO6/(Pt, TiO2) nanocomposite was yellow and showed broad reflection over 400-600 nm together with that corresponding to the host layer, and possessed both excellent hydrogen evolution and nitrogen monoxide destruction photocatalytic activities even under visible light irradiation (λ>510 nm). The HTaWO6/(Pt, TiO2) possessed higher photocatalytic activity than those of undoped HTaWO6, commercial titania powder (Degussa P-25), fibrous titania and Pt-doped fibrous titania.

    Original languageEnglish
    Pages (from-to)377-383
    Number of pages7
    JournalSolid State Ionics
    Volume151
    Issue number1-4
    DOIs
    Publication statusPublished - 2002 Nov 1
    EventSSP- 2000 - Tokyo, Japan
    Duration: 2000 Dec 112000 Dec 13

    Keywords

    • Hydrogen evolution
    • Intercalation reactions
    • Layered compounds
    • Nitrogen monoxide destruction
    • Semiconductors

    ASJC Scopus subject areas

    • Chemistry(all)
    • Materials Science(all)
    • Condensed Matter Physics

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