Fabrication of Eu-coated silica particles by homogeneous precipitation method

Y. Kobayashi, J. Imai, D. Nagao, M. Konno

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)


This paper describes a method for Eu-coating of submicron-sized silica particles. The core silica particles with an average size of 333 nm were prepared with Stöber method. The Eu-coating was performed in a water/propanol solvent in the presence of silica particles and europium acetate with a homogeneous precipitation method with the use of urea. Transmission electron microscopy (TEM) observation and measurements of ζ-potentials revealed that the silica particles were successfully coated with Eu shell. Eu shell size of the Eu-silica particles ranged from 5 to 38 nm with varying concentration of silica particles.

Original languageEnglish
Pages (from-to)109-114
Number of pages6
JournalColloids and Surfaces A: Physicochemical and Engineering Aspects
Issue number1-2
Publication statusPublished - 2008 Aug 15


  • Core-shell
  • Europium
  • Homogeneous precipitation
  • Particle
  • Silica


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