Synthesis and UV-shielding properties of metal oxide doped ceria via soft solution chemical processes

Shinryo Yabe, Mika Yamashita, Shigeyoshi Momose, Kazuyuki Tahira, akae Yoshida, Ruixing Li, Shu Yin, Tsugio Sato

    Research output: Contribution to journalArticlepeer-review

    128 Citations (Scopus)

    Abstract

    Ultrafine particles of M2+ doped ceria (M2+=Mg2+, Ca2+, Sr2+, Ba2+, Zn2+) for use as a UV filter have been prepared via soft solution chemical routes at 40°C. X-ray diffraction revealed that the prepared doped particles had cubic fluorite structures, although the peak positions changed depending on the kind and amount of the doped metal ion. Doping with 20 mol% Ca2+ and 20 mol% Zn2+ resulted in a considerable decrease in the particle size (2-4 nm) and catalytic activity of ceria for oxidation of castor oil. CaO doped cerium dioxide showed excellent UV absorption and transparency in the visible ray region compared with undoped cerium dioxide.

    Original languageEnglish
    Pages (from-to)1003-1008
    Number of pages6
    JournalInternational Journal of Inorganic Materials
    Volume3
    Issue number7
    DOIs
    Publication statusPublished - 2001 Jan 1

    Keywords

    • CaO
    • Catalytic activity
    • Doped cería
    • UV filter
    • Ultrafine particle
    • ZnO

    ASJC Scopus subject areas

    • Materials Chemistry

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