Non-basic solution routes to prepare ZnO nanoparticles

Eiji Hosono, Shinobu Fujihara, Toshio Kimura, Hiroaki Imai

Research output: Contribution to journalArticlepeer-review

139 Citations (Scopus)


Nanocrystalline ZnO particles were prepared from alcoholic solutions of zinc acetate dihydrate without using base such as NaOH or LiOH through a colloid process carried out at a low temperature of 60°C. A comparative study of chemical reactions from zinc acetate dihydrate to ZnO was made using different types of monool solvents, i.e. methanol, ethanol, and 2-methoxyethanol. It was revealed that layered hydroxide zinc acetate was formed as an intermediate and its transformation into ZnO was a key reaction step in any of the solutions. Reaction time necessary for the precipitation of ZnO was greatly influenced by the solvents used. Methanol was useful for the preparation of the ZnO nanoparticles, which were chemically pure in terms of cation impurities and exhibited green photoluminescence by the ultraviolet excitation.

Original languageEnglish
Pages (from-to)71-79
Number of pages9
JournalJournal of Sol-Gel Science and Technology
Issue number2
Publication statusPublished - 2004 Feb


  • Formation mechanisms
  • Nanoparticles
  • Photoluminescence
  • ZnO

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Chemistry(all)
  • Biomaterials
  • Condensed Matter Physics
  • Materials Chemistry


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