Journal
JOURNAL OF HAZARDOUS MATERIALS
Volume 186, Issue 1, Pages 745-750Publisher
ELSEVIER
DOI: 10.1016/j.jhazmat.2010.11.056
Keywords
CI Acid Red 14; Mineralization; Decolourization; Heterogeneous Fenton; Fe(II)-Y Zeolite; Catalyst
Categories
Funding
- European Union
- Spanish Ministry of Science and Innovation [CTQ2009-07432]
Ask authors/readers for more resources
The decolourization and mineralization of a solution of an azo dye using a catalyst based on Fe(II) supported on Y Zeolite (Fe(II)-Y Zeolite) and adding hydrogen peroxide (heterogeneous Fenton process) have been studied. The catalyst was prepared by ion exchange, starting from a commercial ultra-stable V Zeolite. All experiments were performed on a laboratory scale set-up. The effects of different parameters such as initial concentration of the dye, initial pH of the solution of the dye. H2O2 concentration, temperature and ratio of amount of catalyst by amount of solution on the decolourization efficiency of the process were investigated. A percentage of colour removal of 99.3 +/- 0.2% and a mineralization degree of 84 +/- 5% of the solution of the dye were achieved in only 6 min of contact time between the catalyst and the solution, under the following conditions: initial concentration of the dye of 50 ppm, pH 5.96, 8.7 mM of H2O2, T of 80 degrees C and catalyst concentration of 15 g/L. Moreover, the catalyst Fe(II)-Y Zeolite can be easily filtered from the solution, does not leach any iron into the solution (avoiding any secondary contamination due to the metal) and its effectivity can be reproduced after consecutive experiments. (C) 2010 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available