Persistent deNOx Ability of CaAl2O4:(Eu, Nd)/TiO2-xNy Luminescent Photocatalyst

Huihui Li, Shu Yin, Tsugio Sato

    Research output: Contribution to journalArticlepeer-review

    34 Citations (Scopus)

    Abstract

    CaAl2O4:(Eu, Nd)/TiO2-xNy composite luminescent photocatalyst was successfully synthesized by a simple planetary ball milling process. Improvement of photocatalytic deNOx ability of TiO2-xNy, together with the persistent photocatalytic activity for the decomposition of NO after turning off the light were realized, by coupling TiO2-xNy with long afterglow phosphor, CaAl2O4:(Eu, Nd). The novel persistent photocatalytic behavior was related to the overlap between the absorption wavelength of TiO2-xNy and the emission wavelength of the CaAl2O4:(Eu, Nd). It was found that CaAl2O4:(Eu, Nd)/TiO2-xNy composites provided the luminescence to persist photocatalytic reaction for more than 3 h after turning off the light.

    Original languageEnglish
    Article number5
    Pages (from-to)1-4
    Number of pages4
    JournalNanoscale Research Letters
    Volume6
    Issue number1
    DOIs
    Publication statusPublished - 2011 Jan

    Keywords

    • Composite
    • Luminescent photocatalyst
    • deNOx

    ASJC Scopus subject areas

    • Materials Science(all)
    • Condensed Matter Physics

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