Original scientific paper
https://doi.org/10.5599/jese.2012.0022
Electrochemical degradation of Reactive Brilliant Red K-2BP on Ti/RuTiIrSnMn oxide anode in a batch cell
Luo Jiancheng
; School of Chemistry and Environment, South China Normal University, Guangzhou 510006, China
Yang Jie
; School of Chemistry and Environment, South China Normal University, Guangzhou 510006, China
Li Weishan
; School of Chemistry and Environment, South China Normal University, Guangzhou 510006, China
Huang Qiming
; School of Chemistry and Environment, South China Normal University, Guangzhou 510006, China
Xu Hongkang
; Dongguan Hongjie Environmental Technologies Ltd, Dongguan 523039, China
Abstract
Electrochemical degradation of Reactive Brilliant Red K-2BP on Ti/RuTiIrSnMn oxide anode in chloride containing solution was investigated by voltammetry and electrolysis in a batch cell. It is found that the degradation mechanism of K-2BP on Ti/RuTiIrSnMn oxide anode involves an indirect electrocatalytic oxidation, in which K-2BP is oxidized by the electrochemically generated active chlorine. This degradation reaction follows pseudo-first order reaction kinetics. Ti/RuTiIrSnMn oxide exhibits excellent electrocatalytic activity toward the generation of active chlorine from chloride. Hence, K-2BP can be electrochemically degraded effectively in chloride containing solution. The decolorization efficiency was found to increase with the decrease in pH and with the increase in current density, NaCl concentration, temperature, and flow rate of the solution.
Keywords
Decolorization; Electrooxidation; Active chlorine
Hrčak ID:
91143
URI
Publication date:
10.11.2012.
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