Electrochemical Oxidation of Chlorimuron-ethyl on Ti/SnO2-Sb2O5/PbO2 Anode for Waste Water Treatment

Chemical Research in Chinese Universities ›› 2010, Vol. 26 ›› Issue (4): 630-635.

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Electrochemical Oxidation of Chlorimuron-ethyl on Ti/SnO₂-Sb₂O₅/PbO₂ Anode for Waste Water Treatment

YU Shi-jun^1,2, XUE Bin², WANG Jian-ya^2*, SUN Jian² and SHEN Zhi-qiu¹

1. School of Chemical Engineering, Dalian University of Technology, Dalian 116012, P. R. China;
2. School of Petrochemical Engineering, Shenyang University of Technology, Liaoyang 111003, P. R. China

Received:2009-06-29 Revised:2009-09-22 Online:2010-07-25 Published:2010-10-01
Contact: WANG Jian-ya, E-mail: jianya-wang@163.com
Supported by:
Supported by the Science and Technology Foundation of the Education Department of Liaoning Province, China (No.2009A557).

Abstract

Abstract: The electrochemical oxidation of chlorimuron-ethyl on Ti/SnO₂-Sb₂O₅/PbO₂ electrode was studied by cyclic voltammetry. The electrochemical behaviour of the electrode in a sodium sulfate solution and in the mixture solution of sodium sulfate and chlorimuron-ethyl was studied. The experimental results of cyclic voltammetry show that the acidic medium was suitable for the efficient electrochemical oxidation of chlorimuron-ethyl. Some electro-generated reagent was formed in the electrolysis process and chlorimuron-ethyl could be oxidized by the electro-generated reagent. A Ti/SnO₂-Sb₂O₅/PbO₂ electrode was used as the anode and the electrolysis experiment was carried out under the optimized conditions. The electrolysis process was monitored by UV-Vis spectrometry and high performance liquid chromatography(HPLC), and the chemical oxygen demand(COD) was determined by the potassium dichromate method. The mechanism of chlorimuron-ethyl to be oxided was studied primarily by the cyclic voltammetry and UV-Vis spectrometry. The results of electrolysis experiment demonstrate the possibility of the electrode to be used as an anode for the electrochemical treatment of chlorimuron-ethyl contained in waste water.

Key words: Ti/SnO2-Sb2O5/PbO2 electrode, Chlorimuron-ethyl, Cyclic voltammetry, Electrochemical oxidation, Waste water treatment

YU Shi-jun, XUE Bin, WANG Jian-ya*, SUN Jian and SHEN Zhi-qiu. Electrochemical Oxidation of Chlorimuron-ethyl on Ti/SnO₂-Sb₂O₅/PbO₂ Anode for Waste Water Treatment[J]. Chemical Research in Chinese Universities, 2010, 26(4): 630-635.

References

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Electrochemical Oxidation of Chlorimuron-ethyl on Ti/SnO₂-Sb₂O₅/PbO₂ Anode for Waste Water Treatment

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