高等学校化学研究 ›› 2010, Vol. 26 ›› Issue (4): 630-635.
YU Shi-jun1,2, XUE Bin2, WANG Jian-ya2*, SUN Jian2 and SHEN Zhi-qiu1
YU Shi-jun1,2, XUE Bin2, WANG Jian-ya2*, SUN Jian2 and SHEN Zhi-qiu1
摘要: 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.