UV-shielding properties of zinc oxide-doped ceria fine powders derived via soft solution chemical routes

Ruixing Li, Shinryo Yabe, Mika Yamashita, Shigeyosi Momose, Sakae Yoshida, Shu Yin, Tsugio Sato

    Research output: Contribution to journalConference articlepeer-review

    130 Citations (Scopus)

    Abstract

    Nanoparticles of zinc oxide-doped ceria (3-7 nm diameter) were synthesized by soft solution chemical processes at 40 °C and pH 6. Some zinc ions remained in the solution but cerium ions precipitated completely at pH 6. The solubility limit of ZnO in Ce1-xZnxO2-x was determined to be x = 0.561. The oxidation catalytic activity of ceria effectively decreased by doping with zinc oxide. The photocatalytic activity of undoped ceria and zinc oxide-doped ceria for oxidation of phenol was much smaller than that of titania. Zinc oxide-doped ceria showed excellent UV absorption and transparency in the visible ray region in a similar manner as that of undoped ceria.

    Original languageEnglish
    Pages (from-to)39-44
    Number of pages6
    JournalMaterials Chemistry and Physics
    Volume75
    Issue number1-3
    DOIs
    Publication statusPublished - 2002 Apr 28
    EventICMAT 2001 Symposium C (Novel and Advanced Ceramics) - Singapore, Singapore
    Duration: 2002 Apr 28 → …

    Keywords

    • Catalytic activity
    • Ceria
    • Fine powder
    • Solid solution
    • UV-shielding
    • Zinc oxide

    ASJC Scopus subject areas

    • Materials Science(all)
    • Condensed Matter Physics

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