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Journal of Nanomaterials
Volume 2008, Article ID 286069, 5 pages
http://dx.doi.org/10.1155/2008/286069
Research Article

Structure and Property Investigation of Composite ZnO/ Nanocrystalline Particles after High-Pressure Treatment

1Center for Material Research and Analysis, Wuhan University of Technology, Wuhan 430070, China
2School of Science, Wuhan University of Technology, Wuhan 430070, China

Received 26 September 2007; Revised 21 January 2008; Accepted 20 February 2008

Academic Editor: Junlan Wang

Copyright © 2008 Sun Zhenya 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

Composite ZnO/ nanocrystalline particles (ZnO/) were synthesized by sol-gel method and with treatment of high pressure at 6 GPa. The crystallinity and the particle size of the prepared samples were analyzed by X-ray diffraction (XRD) spectroscopy. The results indicated that all the samples had the good crystallinity, and the particle size of ZnO and ZnO/ decreased after high-pressure treatment. The infrared (IR) spectra showed that the distance of crystal lattice was shortened after high-pressure treatment, and the size distribution became more uneven after doping. With the high-resolution transmission electron microscope (HRTEM), we got some morphology information and evidence to support the IR and XRD analysis results. The results of ultraviolet-visible absorption (UV-Vis) spectra showed that ZnO/ might improve the photocatalytic property of the samples after high-pressure treatment.