Synthesis and photocatalytic activity of Sr4Al 14O25:(Eu, Dy)/TiO2-xNy composite photocatalyst

Huihui Li, Shu Yin, Yuhua Wang, Qiang Dong, Chongshen Guo, Tsugio Sato

    Research output: Contribution to journalArticlepeer-review


    Sr4Al14O25:(Eu, Dy)/TiO 2-xNy composites were synthesised via the solvothermal reaction followed by the mild ball-milling, and the photocatalytic activities were evaluated for deNOx ability both under artificial solar irradiation with 69.3 W/m2 and after turning off the light. It was confirmed that TiO2-xNy nanoparticles with rutile phase could be uniformly dispersed on the surface of Sr4Al 14O25:(Eu, Dy). The improvement of photocatalytic deNOx ability of TiO2-xNy, together with the persistent photocatalytic activity for the decomposition of NO gas after turning off the light was realised.

    Original languageEnglish
    Pages (from-to)13-21
    Number of pages9
    JournalInternational Journal of Nanotechnology
    Issue number1-2
    Publication statusPublished - 2013


    • Air purification
    • Blue fluorescence
    • DeNOx
    • In the darkness
    • Long afterglow phosphor
    • Nitrogen-doped
    • Persistent decomposition
    • Photocatalytic
    • Titanium dioxide
    • Turning off light
    • Visible-light induction

    ASJC Scopus subject areas

    • Bioengineering
    • Condensed Matter Physics
    • Electrical and Electronic Engineering
    • Materials Chemistry


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