CoFe-LDO@CMS self-supporting electrode, capacitive deionization coupled electrocatalysis system and wastewater treatment method

Abstract

This invention proposes a CoFe-LDO@CMS self-supporting electrode, a capacitive deionization coupled electrocatalytic system, and a wastewater treatment method. The CoFe-LDO@CMS self-supporting electrode comprises: carbonized melamine sponge CMS and a cobalt-iron layered bimetallic oxide (CoFe-LDO) in situ grown on the carbonized melamine sponge CMS. The capacitive deionization coupled electrocatalytic system constructed using the CoFe-LDO@CMS self-supporting electrode can actively remove Cl- from wastewater containing organophosphonates and chloride ions when used for wastewater treatment. ‑ It is transformed into highly active chlorine species (RCS), which not only achieves efficient degradation and mineralization of organophosphonates, but also eliminates competing ions and improves the solution environment, thereby significantly improving the selective adsorption and recovery efficiency of subsequent phosphates and achieving the dual goals of "waste treatment" and "resource recovery".

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