Synthesis of K3Ta3B2O12 photocatalytic material by aqueous solution-based process using a novel water soluble tantalum complex

Norio Yamatani, Valery Petrykin, Yuma Matsumoto, Koji Tomita, Akihiko Kudo, Masato Kakihana

    Research output: Contribution to journalArticlepeer-review

    8 Citations (Scopus)

    Abstract

    The K3Ta3B2O12 photocatalytic material for water splitting was prepared by an aqueous solution-based process using a novel water soluble Ta-peroxolactate complex. Use of water as a processing solvent is essential to prevent formation of volatile boron compounds and to synthesize the stoichiometric single phase material by a solution technique. Photocatalytic activity of K3Ta3B 2O12 for water splitting was the highest when a stoichiometric amount of lactic acid (LA) with Ta:La = 1:2 was used for preparation of the Ta-peroxo lactate complex. Additionally, activities of K 3Ta3B2O12 in the photocatalytic water splitting have been improved when NiO was used as a co-catalyst. The highest photocatalytic hydrogen and oxygen evolution rates exhibited by the materials prepared in this work were H2: 392 μ mol/h and O 2: 192 μ mol/h.

    Original languageEnglish
    Pages (from-to)308-312
    Number of pages5
    JournalJournal of the Ceramic Society of Japan
    Volume117
    Issue number1363
    DOIs
    Publication statusPublished - 2009 Mar

    Keywords

    • Amorphous complex method
    • Aqueous solution-based process
    • Photocatalytic water splitting
    • Water soluble tantalum complex

    ASJC Scopus subject areas

    • Ceramics and Composites
    • Chemistry(all)
    • Condensed Matter Physics
    • Materials Chemistry

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