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Journal of Chemistry
Volume 2016, Article ID 1873175, 9 pages
http://dx.doi.org/10.1155/2016/1873175
Research Article

New Method for Removal of Organic Dyes Using Supported Iron Oxide as a Catalyst

1King Abdulaziz University, P.O. Box 42805, Jeddah, Saudi Arabia
2Physical Chemistry Department, National Research Centre, Dokki, Cairo 12311, Egypt

Received 12 September 2015; Revised 26 November 2015; Accepted 29 November 2015

Academic Editor: Wenshan Guo

Copyright © 2016 Samia A. Kosa 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

In this study, we perform a catalytic decomposition of organic dye over Fe2O3-CeO2-TiO2-γ-Al2O3 catalyst in the presence of molecular oxygen and chlorate ions. The results showed that organic dye acts as a sensitizer during this process. The mechanism of the allover process is hypothesized. Several techniques were employed for the characterization of the catalyst, including XRD, SEM, EDAX, and thermal analysis and catalytic activity. The analysis showed that iron is the main active centers, and we have two types of active centers in this process: surface iron and dissolved iron in titanium dioxide. The dissolved iron was found to be the most active center; however, after Fe/Ti = 2.76, a synergism was observed to be occurring between the two active centers.