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

128 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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