氯化甲基汞在ITO电极上的电化学行为及其降解

The Electric Chemical Behavior and Degradation of Methyl-mercuric Chloride at ITO Electrode

以氯化甲基汞为代表，对其在ITO导电玻璃上的电化学行为及其降解方法进行探讨。研究了在ITO导电玻璃上氯化甲基汞在不同条件下的降解过程。实验考察了不同扫描速率、支持电解液、溶液酸碱性、外加电压、降解时间等影响因素，结果表明在扫描速率为200mV、外加电压为0．6V、降解时间为30min时，降解率最大的。在上述条件下，发现当氯化甲基汞初始浓度在0～280mmol／L内时，氧化峰电流大小与其成线性关系，线性系数为0．9937。

The electric effect and degradation of methyl - mercuric chloride on ITO electrode was discussed. The factors influencing the degradation of methyl - mercuric chloride on ITO, such as the scanning rate, the pH value, the applied potential and the degradation time were all investigated. It was found that the degradation rate could reach the maximum when the scanning rate was 200mV/s, the applied potential was 0.6V, and the degradation time was 30mins. The photocurrent was linear with the initial concentration ranging from 0 to 280 Mm, with a linear coefficient correlation of 0. 9937 under optimized condition.