An electro-anode composite hydrolysis membrane, its preparation method and application

By preparing an electroanodic composite membrane by combining Zr-MOF with acidified multi-walled carbon nanotubes, the problems of poor mass transfer performance and difficult catalyst recovery in traditional electrocatalytic oxidation technology are solved, achieving efficient degradation of organophosphorus pollutants and simultaneous mineralization of by-products, and the catalyst is easy to recover.

CN119370955BActive Publication Date: 2026-07-24GUILIN UNIV OF ELECTRONIC TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
GUILIN UNIV OF ELECTRONIC TECH
Filing Date
2024-11-18
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing electrocatalytic oxidation technologies suffer from poor mass transfer performance, long hydraulic retention time, and difficulty in catalyst recovery when treating organophosphorus pollutants, resulting in limited degradation capacity. Furthermore, the low conductivity of traditional MOF materials restricts their application.

Method used

By combining Zr-MOF with acidified multi-walled carbon nanotubes to prepare an electroanodic composite membrane, a composite electrocatalyst is synthesized by a one-pot hydrothermal method and loaded onto a polyvinylidene fluoride membrane to form an electroanodic composite hydrolysis membrane, thereby achieving simultaneous hydrolysis of organophosphorus pollutants and electrocatalytic oxidation of byproducts.

Benefits of technology

It improves the degradation efficiency of organophosphorus pollutants, realizes the simultaneous mineralization and removal of organophosphorus pollutants and their toxic byproducts, the catalyst is easy to recover, it is suitable for continuous flow systems, and solves the shortcomings of traditional technologies.

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Abstract

The present application relates to the technical field of hydrolysis and electrocatalytic oxidation, and particularly relates to an electro-anode composite hydrolysis membrane capable of synchronously performing hydrolysis and by-product electrocatalytic oxidation reaction on organic phosphorus pollutants, and a preparation method and application thereof. The present application loads a composite conductive catalytic layer on a polyvinylidene fluoride membrane, wherein the composite conductive catalytic layer comprises multi-walled carbon nanotubes after acid treatment and a zirconium-based metal organic framework with zirconium as a metal center. Meanwhile, by virtue of the highly adjustable topological structure, large specific surface area of the metal organic framework and the high conductivity of carbon nanotubes, the electro-anode composite hydrolysis catalytic membrane is realized to continuously operate in a flow-through reactor, so as to increase the contact and oxidation efficiency of pollutants and the composite membrane interface, and overcome the problems of limited mass transfer and treatment of toxic by-products after hydrolysis of pollutants. The electro-anode composite membrane can realize the synchronous hydrolysis and degradation of toxic by-products on organic phosphorus pollutants.
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Citation Information

Patent Citations

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