2003•Plasma Science and TechnologyOpen access

Oxidative Degradation of o-Chlorophenol with Contact Glow Discharges in Aqueous Solution

Gao Jin-zhang, Wu Yang, Yongjun Liu, Chen Ping, Na Peng-jun, Quanfang Lu

Abstract

Contact glow discharge electrolysis (CGDE) of o-chlorophenol (2-CP) was investigated under different pH, voltages and initial concentrations. And the mechanism of the oxidation was explored. The results suggested that the degradation followed the first order kinetic law; Fe 2+ had a remarkable catalytic effect on the removal rate of o-chloropenol. In the presence of Fe 2+ , 2-CP underwent an exhaustive degradation, from which the major intermediates included o-dihydroxybenze, p-hydroxybenze, p-benzoquione and carboxlic acids.

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Key concepts: Degradation (telecommunications), Aqueous solution, Electrolysis, Chemistry, Glow discharge, Catalysis, Kinetic energy, Oxidative phosphorylation