Method for degrading neonicotinoid pesticide by activating persulfate with iron monatomic coordination imino COFs photocatalyst

Abstract

The invention discloses a method for degrading a neonicotinoid pesticide by activating persulfate with an iron monatomic coordination imino COFs photocatalyst, the method is characterized in that the photocatalyst is used for activating persulfate degradation to degrade the neonicotinoid pesticide, the photocatalyst comprises an imino covalent organic framework RTCOF-1Acb, and Fe < 3 + > ions are distributed in a cavity and on the surface of the imino covalent organic framework RTCOF-1Acb. According to the invention, the adopted photocatalyst has the advantages of wide photoresponse range, high carrier separation efficiency, strong persulfate activation capability, good stability, strong environmental interference resistance and the like, can realize efficient activation of persulfate, can be widely used for treating neonicotinoid pesticide wastewater, can realize efficient degradation of neonicotinoid pesticides, and has good application prospects. The method has the advantages of simple process, convenience in operation, low cost, high treatment efficiency, high removal efficiency, good cycle performance, no secondary pollution and the like, and is high in use value and good in application prospect.

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