A MOFs derived iron sulfide heterogeneous electro-fenton catalyst, a preparation method thereof and application of the catalyst in degradation and removal of organic pollutants

Abstract

The application discloses a MOFs derived iron sulfide heterogeneous electro-Fenton catalyst, a preparation method thereof and application of the catalyst in degradation and removal of organic pollutants. The preparation method of the catalyst is as follows: iron metal organic framework material MOFs and sublimed sulfur are mixed, supercritical technology is used to make the sulfur easily enter the MOFs material channel, and then calcination is performed to make the MOFs framework collapse, and the sulfur element reacts with the metal iron element to generate iron sulfide, so that the electron transfer efficiency of the material is further improved, and the pH of the Fenton reaction is widened. The catalyst synthesis process is simple, convenient and controllable, the prepared granular catalyst is applied to a heterogeneous electro-Fenton system, has good catalytic effect, and overcomes the defect that a traditional electro-Fenton catalyst is difficult to recover. The method provides an innovative method for a heterogeneous electro-Fenton cathode.

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