Degradation of nicosulfuron in water by pin-plate corona discharge coupled with persulfate

In this article, the needle plate corona discharge plasma water treatment device is used to treat nicosulfuron in water. In this article, the effects of treatment duration, discharge gap, discharge voltage, initial pH and concentration of persulfate in the synergistic system on the degradation rate of nicosulfuron in the corona discharge system and corona discharge synergistic persulfate system were investigated, and the reaction kinetics were also analyzed. The research found that the use of plasma technology alone had a certain degradation effect on nicosulfuron in water. However, when combined with persulfate to form a synergistic system, the degradation rate of nicosulfuron could be significantly enhanced. And finally, the degradation pathway of nicosulfuron was inferred by using Fukui function and Mulliken Buju analysis.