Author(s)

Xuyan Mao, Maocheng Wu, Xiangyu Xu, Liang Jiang, Jie Yang, Zhongyu Du, Jianjun Li, Yuanyuan Zhang

Corresponding Author

Xuyan Mao

Abstract

To improve the efficiency of the detection of SO2, we propose a method using [Bmim][Tf2N]. Under normal atmospheric pressure, the [Bmim][Tf2N] has a good effect for absorbing SO2. The [Bmim][Tf2N] was directly used as an electrolyte to measure the SO2 absorption rate and good results were obtained. By comparing the redox reactions of SO2 with three kinds of electrodes, it was found that the reaction current was the highest, indicating that MoS2 has better electrochemical properties. This method was applied to the absorption and detection of SO2 in haze with MoS2 modified electrode, and good results were obtained.

Keywords

Electrochemical sensor, SO2, Ionic liquids, MoS2.