Electrochemical and Photoelectrochemical Decoloration of Amaranth Dye Azo Using Composited Dimensional Stable Anodes
- 1 Ingeniería en Nanotecnología, Centro de Graduados e Investigación en Química del Instituto Tecnológico de Tijuana, Tijuana, México
- 2 Ingeniería en Nanotecnología, Centro de Graduados e Investigación en Química del Instituto Tecnológico de Tijuana, Tijuana, México
- 3 Ingeniería en Nanotecnología, Centro de Graduados e Investigación en Química del Instituto Tecnológico de Tijuana, Tijuana, México
- 4 Ingeniería en Nanotecnología, Centro de Graduados e Investigación en Química del Instituto Tecnológico de Tijuana, Tijuana, México
- 5 Ingeniería en Nanotecnología, Centro de Graduados e Investigación en Química del Instituto Tecnológico de Tijuana, Tijuana, México
Abstract
In this paper we report the results of our experimental work conducted to decoloration of a well-known highly toxic Amaranth dye by electrochemical and photoelectrochemical methods. Throughout this investigation were used two dif ferent Dimensional Stable Anode (DSA) electrodes, namely, IrO 2 -Ru 2 O-SnO 2 -TiO 2 /Ti and Ru 2 O-SnO 2 -TiO 2 /Ti. The experimental results show that IrO 2 -Ru 2 O-SnO 2 -TiO 2 /Ti electrode has higher performance on amaranth decoloration than Ru 2 O-SnO 2 -TiO 2 /Ti electrode, but with the disadvantage of higher energy consumption. For higher degradation of Amaranth dye with both DSA electrodes, the process was carried out via photoelectrochemical method. Our experi mental results clearly shown the decrease in absorbance of all UV-Vis peaks due to the mineralization of the azo dye; also, it was noteworthy photoelectrochemical process consumes less energy under the same experimental conditions than electrochemical process. The IrO 2 -Ru 2 O-SnO 2 -TiO 2 /Ti electrode reaches a higher degradation degree of Amaranth solutions than Ru 2 O-SnO 2 -TiO 2 /Ti electrode using a photoelectrochemical technique.
- C. Cripps, J. A. Bumpus and S. D. Aust, “Biodegradation of Azo and Heterocyclic Dyes by Phanerochaete Chrysosporium,” Applied and Environmental Microbiology, Vol. 56, No. 4, 1990, pp. 1114-1118.
- G. Centi, A. Grande and S. Perathoner, “Catalytic Conversion of MTBE to Biodegradable Chemicals in Contaminated Water,” Catalysis Today, Vol. 75, No. 1-4, 2002, pp. 69-76. doi:10.1016/S0920-5861(02)00046-9
- K. Huang, R. C. Couttenye and G. E. Hoag, “Kinetics of Heat-Assisted Persulfate Oxidation of Methyl Tert-Butyl Ether (MTBE),” Chemosphere, Vol. 49, No. 4, 2002, pp. 413-420. doi:10.1016/S0045-6535(02)00330-2
- N. Daneshvar, S. Aber, V. Vatanpour and M. H. Rasoulifard, “Electro-Fenton Treatment of Dye Solution Containing Orange II: Influence of Operational Parameters,” Journal of Electroanalytical Chemistry, Vol. 615, No. 2, 2008, pp. 165-174. doi:10.1016/j.jelechem.2007.12.005
- N. Daneshvar, H. Ashassi-Sorkhabi and M. B. Kasiri, “Decolorization of Dye Solution Containing Acid Red 14 by Electrocoagulation with a Comparative Investigation of Different Electrode Conections,” Journal of Hazardous Materials, Vol. 112, No. 1-2, 2004, pp. 55-62. doi:10.1016/j.jhazmat.2004.03.021
- M. F. Elahmadi, N. Bensalah and A. Gadri, “Treatment of Aqueous Wastes Contaminated with Congo Red Dye by Electrochemical Oxidation and Ozonation Processes,” Journal of Hazardous Materials, Vol. 168, No. 2-3, 2009, pp. 1163-1169. doi:10.1016/j.jhazmat.2009.02.139
- M. R. V. Lanza and R. Bertazzoli, “Cyanide Oxidation from Wastewater in a Flow Electrochemical Reactor,” Industrial & Engineering Chemistry Research, Vol. 41, No. 1, 2002, pp. 22-26. doi:10.1021/ie010363n
- G. R. P. Malpass, D. W. Miwa, A. C. P. Miwa, S. A. S. Machado and A. J. Motheo, “Photo-Assisted Electrochemical Oxidation of Atrazine on a Comercial Ti/Ru0.3Ti0.7O2 DSA Electrode,” Environmental Science & Technology, Vol. 41, No. 20, 2007, pp. 7120 7125. doi:10.1021/es070798n
- M. Panizza and G. Cerisola, “Electrocatalytic Materials for the Electrochemical Oxidation of Synthetic Dyes,” Applied Catalysis B, Vol. 75, No. 1-2, 2007, pp. 95-101. doi:10.1016/j.apcatb.2007.04.001
- V. K. Gupta, R. Jain, A. Mittal, T. A. Saleh, A. Nayak, S. Agarwal and S. Sikarwar, “Photo-Catalytic Degradation of Toxic Dye Amaranth on TiO2/UV in Aqueous Suspensions,” Materials Science and Engineering: C, Vol. 32, No. 1, 2012, pp. 12-17. doi:10.1016/j.msec.2011.08.018
- R. Semdé, D. Pierre, G. Geuskens, M. Devleeschouwer and A. J. Mo?s, “Study of Some Important Factors In volved in Azo Derivative Reduction by Clostridium Per fringens,” International Journal of Pharmaceutics, Vol. 161, No. 1, 1998, pp. 45-54. doi:10.1016/S0378-5173(97)00327-X