Table of Contents Author Guidelines Submit a Manuscript
Journal of Nanomaterials
Volume 2012, Article ID 930763, 5 pages
http://dx.doi.org/10.1155/2012/930763
Research Article

Characterization of Orthorhombic α-MoO3 Microplates Produced by a Microwave Plasma Process

1Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
2Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
3Materials Science Research Center, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand

Received 1 October 2011; Accepted 8 November 2011

Academic Editor: William W. Yu

Copyright © 2012 Arrak Klinbumrung et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Orthorhombic α-MoO3 microplates were produced from (NH4)6Mo7O244H2O solid powder by a 900 W microwave plasma for 40, 50, and 60 min. Phase, morphologies, and vibration modes were characterized by X-ray diffraction (XRD), selected area electron diffraction (SAED), scanning electron microscopy (SEM), and Raman and Fourier transform infrared (FTIR) spectroscopy. Sixty min processing resulted in the best crystallization of the α-MoO3 phase, with photoluminescence (PL) in a wavelength range of 430–440 nm.