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Electrolytic treatment of C.I. Acid Orange 7 in aqueous solution using a three-dimensional electrode reactor
Open accessAbstract
A simulated wastewater containing the monoazo dye C.I. Acid Orange 7 was electrolytically treated using a three-dimensional electrode reactor equipped with granular activated carbon as particle electrode. The activated carbon fiber cathode was more effective than either a graphite or a stainless steel cathode due to its larger surface area which was beneficial to the electrogeneration of H(2)O(2). Under the reaction conditions of 20 V and 3.0 g L(-1) Na(2)SO(4) at pH 3.0, decrease in the COD of up to 80%, and in the TOC by up to 72% were achieved and almost the complete decolorization of the dye was secured after 180 min electrolysis. Furthermore, decay of the dye followed a pseudo-first-order reaction in the first 60 min treatment. The three-dimensional electrode system generated more hydroxyl radicals than a two-dimensional system due to the formation of microelectrodes under applied high potential. (C) 2007 Elsevier Ltd. All rights reserved.
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Cited by
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Brillas, E., Sirés, I., & Oturan, M. A. (2009) · Chemical Reviews · doi:10.1021/cr900136g · Cited by 3,437
Martínez-Huitle, C. A., & Brillas, E. (2009) · Applied Catalysis B: Environmental · doi:10.1016/j.apcatb.2008.09.017 · Cited by 2,250
Brillas, E., & Martínez-Huitle, C. A. (2015) · Applied Catalysis B: Environmental · doi:10.1016/j.apcatb.2014.11.016 · Cited by 2,009
Three-dimensional electrochemical process for wastewater treatment: A general review
Zhang, C., Jiang, Y., Li, Y., Hu, Z., Zhou, L., & Zhou, M. (2013) · Chemical Engineering Journal · doi:10.1016/j.cej.2013.05.033 · Cited by 583
Mezohegyi, G., van der Zee, F. P., Font, J., Fortuny, A., & Fabregat, A. (2012) · Journal of Environmental Management · doi:10.1016/j.jenvman.2012.02.021 · Cited by 468
Metadata
- Authors
- XU, L., ZHAO, H., SHI, S., ZHANG, G., & NI, J.
- Venue
- Dyes and Pigments
- Publisher
- Elsevier BV
- Published
- 2008
- Volume
- 77
- Issue
- 1
- Pages
- 158-164
- ISSN
- 0143-7208 (ISSN-L)
- OpenAlex
- W1994344237
- Cited by
- 158
- References
- 0
- FWCI
- 5.99
- Type
- journal article
- Language
- en
- Open access
- green
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- XU, L., ZHAO, H., SHI, S., ZHANG, G., & NI, J. (2008). Electrolytic treatment of C.I. Acid Orange 7 in aqueous solution using a three-dimensional electrode reactor. Dyes and Pigments. https://doi.org/10.1016/j.dyepig.2007.04.004
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