High performance visible light responsive photocatalysts for environmental cleanup via solution processing

Tsugio Sato, Peilin Zhang, Shu Yin

    研究成果: Article査読

    7 被引用数 (Scopus)

    抄録

    Fabrication of nitrogen-doped titania and/or strontium titanate nanoparticles via soft chemical reactions and their performance for environmental cleanup under visible light irradiation were introduced. Nitrogen-doped anatase, brookite and rutile with high specific surface area can be selectively prepared by the solvothermal reactions in mixed aqueous solution of titanium trichloride-hexamethylenetetramine. Nitrogen-doped strontium titanate can be prepared by mechanochemical reaction of strontium carbonate, titania and hexamethylenetetramine using a planetary ball-mill. Nitrogen-doped titania shows excellent photocatalytic activity for the nitrogen monoxide destruction under visible light irradiation. The photocatalytic activity of nitrogen-doped titania is in the order anatase > brookite > rutile. The photocatalytic activity of nitrogen-doped titania and strontium titanate can be improved by co-doping with higher valence metal ions to reduce oxygen vacancy and/or coupling with Fe 2O 3 and Pt to retard quick recombination of photo-induced electron and hole by the heterogeneous electron transfer.

    本文言語English
    ページ(範囲)92-105
    ページ数14
    ジャーナルProgress in Crystal Growth and Characterization of Materials
    58
    2-3
    DOI
    出版ステータスPublished - 2012 6 1

    ASJC Scopus subject areas

    • 材料科学(全般)
    • 凝縮系物理学

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