• photocatalytic activity and photoinduced hydrophilicity of brookite–heteropolyacid hybrid films

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
    • تعداد بازدید: 1032
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     after transparent hybrid films of brookite (tio2) and 12 tungsto(vi) phosphoric acid (pw12) were prepared using layer-by-layer (lbl) processing, a comparative study of photocatalytic decomposition activity and photoinduced hydrophilicity for the films was conducted using gaseous 2-propanol (ipa) decomposition and sessile drop method. the ttp (tio2/tio2/pw12) film exhibited better photocatalytic activity on the decomposition of gaseous ipa than that of the tt (tio2/tio2) film. moreover, the ttp film provided a higher hydrophilization rate under uv illumination, and provided better sustainability of the hydrophilicity in the dark than the tt film did. the generation of pw12 by electron transfer from tio2 to pw12 was inferred as a key factor underpinning the overall performance of wettability conversion before and after uv illumination on this hybrid film.

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