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Electrochemical degradation of 4-chloroguaiacol for wastewater treatment using PbO2 anodes.
J Hazard Mater. 2006 Dec 01; 138(3):614-9.JH

Abstract

Electrochemical oxidation of 4-chloroguaiacol (4-CG) at Nb/PbO(2) anodes was studied under different experimental conditions such as initial concentration of substrate, electrolysis time, temperature and pH. We measured the concentrations of 4-chlorocatechol (4-CC), 2-methoxyhydroquinone (2-MHQ), maleic acid (MA) and carbon dioxide as the main products. Black solid particles consisting mainly of polymers were formed during electrolysis. A mechanism of electrochemical oxidation of 4-CG was investigated. The oxidation of 4-CG can generally be described by simple pseudo first-order kinetics. The degradation of 4-CG was favoured at high temperature and lower initial concentration of 4-CG and low solution pH. However, the increase of temperature has not a significant effect on the mineralization of carboxylic acids. Moreover, these products required long electrolysis time.

Authors+Show Affiliations

UR Electrochimie et Environnement, Ecole Nationale d'Ingénieurs de Sfax, BPW, 3038 Sfax, Tunisia. youssefsamet@yahoo.comNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

16844292

Citation

Samet, Y, et al. "Electrochemical Degradation of 4-chloroguaiacol for Wastewater Treatment Using PbO2 Anodes." Journal of Hazardous Materials, vol. 138, no. 3, 2006, pp. 614-9.
Samet Y, Elaoud SC, Ammar S, et al. Electrochemical degradation of 4-chloroguaiacol for wastewater treatment using PbO2 anodes. J Hazard Mater. 2006;138(3):614-9.
Samet, Y., Elaoud, S. C., Ammar, S., & Abdelhedi, R. (2006). Electrochemical degradation of 4-chloroguaiacol for wastewater treatment using PbO2 anodes. Journal of Hazardous Materials, 138(3), 614-9.
Samet Y, et al. Electrochemical Degradation of 4-chloroguaiacol for Wastewater Treatment Using PbO2 Anodes. J Hazard Mater. 2006 Dec 1;138(3):614-9. PubMed PMID: 16844292.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Electrochemical degradation of 4-chloroguaiacol for wastewater treatment using PbO2 anodes. AU - Samet,Y, AU - Elaoud,S Chaabane, AU - Ammar,S, AU - Abdelhedi,R, Y1 - 2006/06/06/ PY - 2006/03/18/received PY - 2006/05/30/revised PY - 2006/05/30/accepted PY - 2006/7/18/pubmed PY - 2007/2/21/medline PY - 2006/7/18/entrez SP - 614 EP - 9 JF - Journal of hazardous materials JO - J. Hazard. Mater. VL - 138 IS - 3 N2 - Electrochemical oxidation of 4-chloroguaiacol (4-CG) at Nb/PbO(2) anodes was studied under different experimental conditions such as initial concentration of substrate, electrolysis time, temperature and pH. We measured the concentrations of 4-chlorocatechol (4-CC), 2-methoxyhydroquinone (2-MHQ), maleic acid (MA) and carbon dioxide as the main products. Black solid particles consisting mainly of polymers were formed during electrolysis. A mechanism of electrochemical oxidation of 4-CG was investigated. The oxidation of 4-CG can generally be described by simple pseudo first-order kinetics. The degradation of 4-CG was favoured at high temperature and lower initial concentration of 4-CG and low solution pH. However, the increase of temperature has not a significant effect on the mineralization of carboxylic acids. Moreover, these products required long electrolysis time. SN - 0304-3894 UR - https://www.unboundmedicine.com/medline/citation/16844292/Electrochemical_degradation_of_4_chloroguaiacol_for_wastewater_treatment_using_PbO2_anodes_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0304-3894(06)00622-4 DB - PRIME DP - Unbound Medicine ER -