Method for degrading organic pollutants by activating persulfate by using carbon-based catalyst derived from waste anode graphite

By using carbon-based catalysts prepared by the anode graphite material of waste lithium battery, the problem of poor catalyst activation effect in the prior art is solved, and the rapid and thorough degradation of organic pollutants in the water is achieved, and the advantages of high efficiency and environmental protection are achieved.

CN119707077APending Publication Date: 2025-03-28GUIZHOU UNIV
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Patent Information

Application Number
CN202311264776.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2023-09-27
Publication Date
2025-03-28

AI Technical Summary

Technical Problem

The prior art has poor activation effect of catalysts when activating persulfate, resulting in difficulty in rapidly and thoroughly degrading organic pollutants in water.

Method used

A carbon-based catalyst with high catalytic activity and stability was prepared by calcining the anode graphite material of the waste lithium battery and degrading the organic pollutants by controlling the calcining temperature between 500°C and calcining under a nitrogen atmosphere.

Benefits of technology

It has achieved the rapid mineralization of various organic pollutants into water and carbon dioxide under normal temperature and pressure. It has the advantages of simple operation, low treatment cost, wide application range, high treatment efficiency, good treatment effect, strong reusability and environmentally friendly.

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Abstract

The invention discloses a method for degrading organic pollutants by activating persulfate by using a carbon-based catalyst derived from waste anode graphite, which is characterized in that the organic pollutants in wastewater are degraded by activating peroxymonosulfate by using the carbon-based catalyst. Wherein the carbon-based catalyst is prepared by calcining an anode graphite material of a waste lithium battery at 500-900 DEG C. According to the method, the adopted carbon-based catalyst has defect sites, the surface of the carbon-based catalyst contains rich oxygen-containing functional groups, and the carbon-based catalyst has high purity and graphitization degree, so that more active sites can be provided in the degradation reaction process, electron transfer is easy to occur, and the carbon-based catalyst shows very good catalytic activity. The method disclosed by the invention has the advantages of simplicity in operation, low treatment cost, wide application range, high treatment efficiency, good treatment effect, strong reusability, environmental friendliness and the like, can quickly remove organic pollutants in a water body environment, and has a wide application prospect in the aspect of organic pollutant degradation.
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