Fabrication of novel composites of ZnO-nanoparticles and magadiite

Authors

Kiyoshi Ozawa, National Institute for Materials Science, JapanFollow
Y. Nakao, Honda Engineering Co, Ltd, Japan
Zhenxiang Cheng, University of WollongongFollow
Defa Wang, National Institute for Materials Science, Japan
M Osada, National Institute for Materials Science, Japan
R. Okada, Yoshizawa Lime Industry Co, Ltd, Japan
K. Saeki, Industrial Technology Center of Tochigi Prefecture, Japan
H. Itoh, Yoshizawa Lime Industry Co, Ltd, Japan
Fumio Iso, Ashikaga Institute of Technology, Japan

RIS ID

24986

Publication Details

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, Material Letters, 63, pp. 366-369.

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.