Cerium oxide for sunscreen cosmetics

Shinryo Yabe, Tsugio Sato

    Research output: Contribution to journalArticlepeer-review

    251 Citations (Scopus)

    Abstract

    Ultrafine particles of Mn+-doped ceria (Mn+=Mg2+, Ca2+, Sr2+, Ba2+, Y3+, La3+, Nd3+, Sm3+, Eu3+, Tb3+) for UV filter were prepared via soft solution chemical routes at 40°C. X-ray diffraction revealed that the prepared doped particles had the cubic fluorite structures although peak positions changed depending on the kind and amount of doped metal ion. Doping with 20mol% Ca2+ and 20mol% Zn2+ resulted in extremely decreasing the particle size (2-4nm) and the catalytic activity of ceria for oxidation of castor oil. Ca2+-doped cerium dioxide showed excellent UV absorbing effect and transparency in the visible ray region compared with undoped cerium dioxide.

    Original languageEnglish
    Pages (from-to)7-11
    Number of pages5
    JournalJournal of Solid State Chemistry
    Volume171
    Issue number1-2
    DOIs
    Publication statusPublished - 2003

    Keywords

    • Ca
    • Catalytic activity
    • Doped ceria
    • UV filter
    • Ultrafine particle
    • Zn

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Ceramics and Composites
    • Condensed Matter Physics
    • Physical and Theoretical Chemistry
    • Inorganic Chemistry
    • Materials Chemistry

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