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Journal of Nanomaterials
Volume 2015, Article ID 269019, 8 pages
Research Article

Preparation of Mixed Semiconductors for Methyl Orange Degradation

Department of Ceramic Engineering, National Institute of Technology, Rourkela, Odisha 769008, India

Received 4 April 2015; Accepted 17 May 2015

Academic Editor: Anh-Tuan Le

Copyright © 2015 Sangeeta Adhikari and Debasish Sarkar. 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.


Attempts were made to compare the photocatalytic efficacy in between quasi-fiber and near spherical commercial grade ZnO through the addition of monoclinic WO3 nanocuboid. Mixed oxide semiconductors were assessed for their dye degradation performance under irradiation of visible light energy. Surface area and the particle morphology pattern have an influence on the resultant photocatalytic features of these mixed oxide composites. The high porous quasi-fibrous ZnO was successfully fabricated by a simple solution combustion method. It is deliberately made of clusters of primary near spherical particles that supports WO3 nanocuboid embedment and shows interactive characteristics in comparison to the counterpart commercial near spherical ZnO combined with WO3. The photocatalytic activity significantly increases up to 95% under visible radiation for 90 min due to high surface area imparted by unique quasi-fiber morphology. The photogenerated electron-hole pair interaction mechanism has been proposed to support the photocatalytic behavior.