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Complete electrochemical dechlorination of chlorobenzenes in the presence of naphthalene mediator

Abdul Jalil, Aishah and Ali, Jalil and Akhbar, Suffiyana and Sundang, Murni and Tajuddin, Norhuda and Triwahyono, Sugeng (2007) Complete electrochemical dechlorination of chlorobenzenes in the presence of naphthalene mediator. Journal of Hazardous Materials, 148 (1-2). pp. 1-5.

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Official URL: http://dx.doi.org/10.1016/j.jhazmat.2007.06.024

Abstract

Electrochemical dechlorination of chlorobenzene in organic solutions was studied. Electrolysis of chlorobenzene in acetonitrile solution in a one-compartment cell fitted with a platinum cathode and a zinc anode at 60 mA/cm² and 0 ◦C was found to be the optimum conditions, which gave complete dechlorination of chlorobenzene. However, similar result could not be achieved when applying these conditions to 1,3-dichlorobenzene and 1,2,4-trichlorobenzene.We found that the use of naphthalene which reacted as a mediator in the appropriate system could accelerate the reduction and gave complete dechlorination of those chlorobenzenes. Moreover, in the presence of naphthalene the reaction time could be shortened by half compared to dechlorination in the absence of naphthalene.

Item Type:Article
Uncontrolled Keywords:Electrolysis; Dechlorination; Chlorobenzenes; Naphthalene; Mediator
Subjects:Q Science > QD Chemistry
Divisions:Chemical and Natural Resources Engineering (Formerly known)
ID Code:5455
Deposited By: Azlin Abd. Jamil
Deposited On:26 Jul 2008 04:07
Last Modified:01 Jun 2010 15:30

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