Feof@mof composite material containing fe-o-co structure and preparation method and application thereof

The FeOF@MOF composite material with Fe-O-Co chemical bridging optimizes the electronic structure of the metal active center, solving the problem of slow Fe(III)/Fe(II) cycling rate in existing MOF-based Fenton catalysts, and achieving high-efficiency catalyst performance and stability, suitable for the degradation of antibiotic pollutants.

CN122424871APending Publication Date: 2026-07-21HUAZHONG AGRI UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HUAZHONG AGRI UNIV
Filing Date
2026-04-29
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

In existing MOF-based Fenton catalysts, the release of metal active centers is insufficient, the Fe(III)/Fe(II) cycling rate is slow, and the interfacial electron transfer efficiency is limited, resulting in unsatisfactory catalyst stability and reusability.

Method used

By constructing FeOF@MOF composites with Fe-O-Co chemical bonds, the electronic structure of the metal active center is optimized to achieve efficient Fe(III)/Fe(II) cycling. The co-calcination method is used to combine fluorinated iron oxide with amino-functionalized cobalt-based metal-organic frameworks to form strong chemical bonds.

Benefits of technology

It significantly improves the ability to generate free radicals, achieving a degradation efficiency of 99.77% for enrofloxacin within 30 minutes. The catalyst maintains a degradation efficiency of 92.7% after 4 cycles, exhibiting strong anti-interference capabilities and is suitable for complex aquatic environments.

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Abstract

The application belongs to the technical field of catalysts, and more particularly relates to a FeOF@MOF composite material containing Fe-O-Co structure and a preparation method and application thereof. The FeOF / Co-MOF-NH2 bimetallic heterojunction composite material with Fe-O-Co chemical bonding interface is constructed by coupling iron oxyfluoride and amino-functionalized cobalt-based metal organic framework through co-calcination, the material has the performance of synergistically catalyzing hydrogen peroxide activation and is used for eliminating antibiotic pollution, the Fe-O-Co bond bridge optimizes the d-band center, significantly enhances the adsorption-activation balance of the catalyst to the reactants, and promotes the generation of free radicals; the degradation efficiency of the catalyst on enrofloxacin is close to 100% within 30 minutes, the degradation efficiency still maintains 92.7% after 4 cycles, and the catalyst has strong anti-interference ability, and has wide application prospect in the field of antibiotic wastewater treatment.
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