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Journal of Nanomaterials
Volume 2008 (2008), Article ID 356765, 5 pages
http://dx.doi.org/10.1155/2008/356765
Research Article

Preparation of Glass Plate-Supported Nanostructure ZnO Thin Film Deposited by Sol-Gel Spin-Coating Technique and Its Photocatalytic Degradation to Monoazo Textile Dye

Catalysis Division, Department of Chemistry, University of Isfahan, Isfahan 81746-73441, Iran

Received 9 July 2007; Accepted 8 January 2008

Academic Editor: Robert Dorey

Copyright © 2008 Mohammad Hossein Habibi and Mohammad Khaledi Sardashti. 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

Glass plate-supported nanostructure ZnO thin films were deposited by sol-gel spin coating. Films were preheated at for 10 minutes and annealed at 350, 450, and for 80 minutes. The ZnO thin films were transparent ca 80–90% in visible range and revealed that absorption edges at about 370 nm. The c-axis orientation improves and the grain size increases which was indicated by an increase in intensity of the (002) peak at in XRD corresponding to the hexagonal ZnO crystal. The photocatalytic degradation of X6G an anionic monoazo dye, in aqueous solutions, was investigated and the effects of some operational parameters such as the number of layer and reusability of ZnO nanostructure thin film were examined. The results showed that the five-layer coated glass surfaces have a very high photocatalytic performance.