Effect of the status of Sm on the properties of Sm contained N doped TiO2 photocatalysts

Huihui Li, Shu Yin, Yuhua Wang, Tsugio Sato

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    3 Citations (Scopus)

    Abstract

    Nitrogen-doped TiO2 (TiO2-xNy) nanoparticles with and without adding Sm3+ were synthesized by thermohydrolysis of TiCl3. The samples were characterized by X-ray diffraction, specific surface area determination, UV-Vis diffuse reflectance spectroscopy. The photocatalytic activity of the sample was investigated by employing the oxidative destruction of nitric oxide as a probe reaction using a flow reactor. Although the doping of Sm3+ in the lattice of titania was not useful to improve the photocatalytic activity, loading of samarium oxides on the surface of titania resulted in an improvement of the photocatalytic activity of the nitrogen-doped TiO2. The beneficial effect was explained by an increased separation efficiency of the photogenerated electron-hole pairs.

    Original languageEnglish
    Pages (from-to)859-864
    Number of pages6
    JournalJournal of Porous Materials
    Volume20
    Issue number4
    DOIs
    Publication statusPublished - 2013 Aug

    Keywords

    • Coupling
    • Nitrogen doped
    • Photocatalyst
    • Visible-light
    • deNO

    ASJC Scopus subject areas

    • Materials Science(all)
    • Mechanics of Materials
    • Mechanical Engineering

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