Removal of pesticide chlorobenzene by anodic degradation: Variable effects and mechanism

The oxidation of chlorobenzene (CB) was studied by electrochemical electrolysis using boron-doped diamond (BDD), PbO2 or platine (Pt) as anode and graphite bar as cathode. The effect of applied current density, supporting electrolyte and initial pH value were also studied. The results demonstrated t...

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Main Authors:	Amel Ouni, Nejmeddine Rabaaoui, Lassaad Mechi, Nasreddine Enaceur, Abdulmohsen K.D. AlSukaibi, Eid M. Azzam, Khalaf M. Alenezi, Younes Moussaoui
Format:	Article
Language:	English
Published:	Elsevier 2021-10-01
Series:	Journal of Saudi Chemical Society
Subjects:	Anodic oxidation Chlorobenzene Hydroxyl radical Mineralization Boron-doped diamond
Online Access:	http://www.sciencedirect.com/science/article/pii/S1319610321001319

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spelling	doaj-8fd7d3fa355a4c91a0536c079362d3a32021-10-03T04:38:55ZengElsevierJournal of Saudi Chemical Society1319-61032021-10-012510101326Removal of pesticide chlorobenzene by anodic degradation: Variable effects and mechanismAmel Ouni0Nejmeddine Rabaaoui1Lassaad Mechi2Nasreddine Enaceur3Abdulmohsen K.D. AlSukaibi4Eid M. Azzam5Khalaf M. Alenezi6Younes Moussaoui7Laboratory for the Application of Materials to the Environment, Water and Energy (LR21ES15), Faculty of Sciences of Gafsa, University of Gafsa, Tunisia; Faculty of Sciences of Gafsa, University of Gafsa, TunisiaLaboratory for the Application of Materials to the Environment, Water and Energy (LR21ES15), Faculty of Sciences of Gafsa, University of Gafsa, TunisiaDepartment of Chemistry, College of Science, University of Ha’il, 81451 Hail, P.O. Box 2440, Saudi ArabiaLaboratory for the Application of Materials to the Environment, Water and Energy (LR21ES15), Faculty of Sciences of Gafsa, University of Gafsa, Tunisia; Faculty of Sciences of Gafsa, University of Gafsa, TunisiaDepartment of Chemistry, College of Science, University of Ha’il, 81451 Hail, P.O. Box 2440, Saudi ArabiaDepartment of Chemistry, College of Science, University of Ha’il, 81451 Hail, P.O. Box 2440, Saudi ArabiaDepartment of Chemistry, College of Science, University of Ha’il, 81451 Hail, P.O. Box 2440, Saudi ArabiaFaculty of Sciences of Gafsa, University of Gafsa, Tunisia; Organic Chemistry Laboratory (LR17ES08), Faculty of Sciences of Sfax, University of Sfax, Tunisia; Corresponding author at: Faculty of Sciences of Gafsa, University of Gafsa, 2112 Gafsa, Tunisia.The oxidation of chlorobenzene (CB) was studied by electrochemical electrolysis using boron-doped diamond (BDD), PbO2 or platine (Pt) as anode and graphite bar as cathode. The effect of applied current density, supporting electrolyte and initial pH value were also studied. The results demonstrated that BDD anode had the best effectiveness and accomplishment of electrochemical degradation of CB compared to PbO2 and Pt anodes. For a current density of 20 mA/cm2 and at pH = 3, the elimination of COD and TOC were about 97% and 98%, respectively, after 360 min of electrolysis with the BDD anode. Pseudo-first order kinetics appears to be the most appropriate to describe the degradation of chlorobenzene. The electrochemical mechanism of chlorobenzene on BDD was proposed based on the identified intermediates.http://www.sciencedirect.com/science/article/pii/S1319610321001319Anodic oxidationChlorobenzeneHydroxyl radicalMineralizationBoron-doped diamond
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Amel Ouni Nejmeddine Rabaaoui Lassaad Mechi Nasreddine Enaceur Abdulmohsen K.D. AlSukaibi Eid M. Azzam Khalaf M. Alenezi Younes Moussaoui
spellingShingle	Amel Ouni Nejmeddine Rabaaoui Lassaad Mechi Nasreddine Enaceur Abdulmohsen K.D. AlSukaibi Eid M. Azzam Khalaf M. Alenezi Younes Moussaoui Removal of pesticide chlorobenzene by anodic degradation: Variable effects and mechanism Journal of Saudi Chemical Society Anodic oxidation Chlorobenzene Hydroxyl radical Mineralization Boron-doped diamond
author_facet	Amel Ouni Nejmeddine Rabaaoui Lassaad Mechi Nasreddine Enaceur Abdulmohsen K.D. AlSukaibi Eid M. Azzam Khalaf M. Alenezi Younes Moussaoui
author_sort	Amel Ouni
title	Removal of pesticide chlorobenzene by anodic degradation: Variable effects and mechanism
title_short	Removal of pesticide chlorobenzene by anodic degradation: Variable effects and mechanism
title_full	Removal of pesticide chlorobenzene by anodic degradation: Variable effects and mechanism
title_fullStr	Removal of pesticide chlorobenzene by anodic degradation: Variable effects and mechanism
title_full_unstemmed	Removal of pesticide chlorobenzene by anodic degradation: Variable effects and mechanism
title_sort	removal of pesticide chlorobenzene by anodic degradation: variable effects and mechanism
publisher	Elsevier
series	Journal of Saudi Chemical Society
issn	1319-6103
publishDate	2021-10-01
description	The oxidation of chlorobenzene (CB) was studied by electrochemical electrolysis using boron-doped diamond (BDD), PbO2 or platine (Pt) as anode and graphite bar as cathode. The effect of applied current density, supporting electrolyte and initial pH value were also studied. The results demonstrated that BDD anode had the best effectiveness and accomplishment of electrochemical degradation of CB compared to PbO2 and Pt anodes. For a current density of 20 mA/cm2 and at pH = 3, the elimination of COD and TOC were about 97% and 98%, respectively, after 360 min of electrolysis with the BDD anode. Pseudo-first order kinetics appears to be the most appropriate to describe the degradation of chlorobenzene. The electrochemical mechanism of chlorobenzene on BDD was proposed based on the identified intermediates.
topic	Anodic oxidation Chlorobenzene Hydroxyl radical Mineralization Boron-doped diamond
url	http://www.sciencedirect.com/science/article/pii/S1319610321001319
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Removal of pesticide chlorobenzene by anodic degradation: Variable effects and mechanism

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