Table of Contents
Indian Journal of Materials Science
Volume 2014, Article ID 536123, 10 pages
http://dx.doi.org/10.1155/2014/536123
Research Article

Visible Light Photocatalytic Activity of CeO2-ZnO-TiO2 Composites for the Degradation of Rhodamine B

1Department of Chemistry, Bharathidasan Institute of Technology, Anna University, Tiruchirappalli 620024, India
2Department of Petrolum Enginnering, Archana Institiute of Technology, Krishnagiri, Tamil Nadu, India
3Centre for Nanoscience and Nanotechnology, School of Physics, Bharathidasan University, Tiruchirappalli 620 024, Tamil Nadu, India

Received 14 November 2013; Accepted 19 January 2014; Published 3 March 2014

Academic Editors: R. K. Dey, M. Jayachandran, and R. Meena

Copyright © 2014 S. Prabhu 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

TiO2 plays a significant role in many applications including solar cell. Consecutively to absorb the low-energy radiation, it is very much essential to tune the optical property of TiO2. We fabricated CeO2-ZnO-TiO2 semiconductor composites by sol-gel method and achieved the absorption of lower energy radiation. The prepared composites were characterized by TG-DTA, UV-DRS, XRD, AFM, TEM and FESEM techniques. The particle and crystalline size of the composites was calculated using FESEM and XRD techniques, respectively. The photocatalytic activity of the synthesized composite for the degradation of Rhodamine B (RhB) under visible light irradiation was investigated. The photocatalytic degradation of RhB under various experimental conditions such as amount of catalyst, initial dye concentration and H2O2 amount was also demonstrated and the rate constant was calculated using L-H model.