Fabrication of novel composites of ZnO-nanoparticles and magadiite

Kiyoshi Ozawa, Yasuhiro Nakao, Zhenxiang Cheng, Defa Wang, Minoru Osada, Reika Okada, Kazuhiko Saeki, Hiroyasu Itoh, Fumio Iso

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Novel composites of ZnO-nanoparticles and magadiite were successfully prepared by a simple ion-exchange technique in an aqueous suspension of magadiite (Na2Si14O29·nH2O) and Zn(NO3)2. The TEM and STEM measurements showed that the composites have a structure in which ZnO-nanoparticles with relatively uniform particle sizes are well dispersed within the interlaminar spaces of the magadiite matrix. The particle sizes of the ZnO-nanoparticles were found to depend on the heat-treatment temperature; the average particle sizes are ~ 2.6, ~ 2.8, ~ 4.4 and ~ 4.6 nm, respectively, for the temperatures of 40, 180, 300 and 600 °C. It was also found that the ZnO nanoparticles crystallize and form a single-crystalline particle when the temperature exceeds ~ 300 °C.

Original languageEnglish
Pages (from-to)366-369
Number of pages4
JournalMaterials Letters
Volume63
Issue number3-4
DOIs
Publication statusPublished - 2009 Feb 15
Externally publishedYes

Keywords

  • Composites
  • Ion-exchange technique
  • Magadiite compound
  • ZnO-nanoparticles

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering
  • Mechanics of Materials

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    Ozawa, K., Nakao, Y., Cheng, Z., Wang, D., Osada, M., Okada, R., Saeki, K., Itoh, H., & Iso, F. (2009). Fabrication of novel composites of ZnO-nanoparticles and magadiite. Materials Letters, 63(3-4), 366-369. https://doi.org/10.1016/j.matlet.2008.10.038