Table of Contents
ISRN Analytical Chemistry
Volume 2012 (2012), Article ID 951465, 7 pages
http://dx.doi.org/10.5402/2012/951465
Research Article

UV Irradiation Chlorine Dioxide Photocatalytic Oxidation of Simulated Fuchsine Wastewater by UV-Vis and Online FTIR Spectrophotometric Method

School of Chemistry and Chemical Engineering, Shandong University, South Campus, Jinan 250061, China

Received 29 December 2011; Accepted 12 February 2012

Academic Editors: D. Patra and A. Szemik-Hojniak

Copyright © 2012 Laishun Shi 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

The photocatalyst TiO2/SiO2 was prepared and used for chlorine dioxide photocatalytic oxidation of simulated fuchsine wastewater under UV irradiation. The removal efficiency of fuchsine treated by photocatalytic oxidation process is higher than that of chemical oxidation process. By using UV-Vis and online FTIR analysis technique, the intermediates during the degradation process were obtained. The benzene ring in fuchsine was degraded into quinone and carboxylic acid and finally changed into carbon dioxide and water during the photocatalytic oxidation. The degradation reaction mechanism of fuchsine by UV irradiation chlorine dioxide photocatalytic oxidation was proposed based upon the experiment evidence.