TiO2/TiO2-xNy nanocomposite and its acetaldehyde photodecomposition ability

Bin Liu, Yuhua Wang, Shu Yin, Tsugio Sato

    Research output: Contribution to journalArticlepeer-review

    9 Citations (Scopus)

    Abstract

    Nitrogen-doped titania was coupled with the commercial titania nanoparticles by mechanical milling in liquid medium. The as-prepared nanocomposites (TiO2/TiO2-xNy) were characterized by X-ray diffraction (XRD), Brunauer- Emmett-Teller (BET) specific surface area, UV-Vis spectroscopy, chemiluminescence, and acetaldehyde decomposition activity techniques. When a small amount of nitrogen-doped titania was added into the commercial titania, higher intensity and longer lifetime of 1O2 was observed, and the photocatalytic activity was efficiently improved. The TiO2-xNY acts as the acceptor of photoinduced holes. The recombination of the electron-hole was effectively depressed by the heterogeneous electron transfer. This could be an effective way to obtain highly active photocatalysts.

    Original languageEnglish
    Pages (from-to)39-49
    Number of pages11
    JournalResearch on Chemical Intermediates
    Volume36
    Issue number1
    DOIs
    Publication statusPublished - 2010 Jan

    Keywords

    • Acetaldehyde degradations
    • Photocatalyst
    • Singlet oxygen
    • Visible-light induced

    ASJC Scopus subject areas

    • Chemistry(all)

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