Cobalt-based metal nitride nanoscale enzyme and preparation method and application thereof

By preparing cobalt-based metal nitride nanozymes Co4N-600, the "oxygen wall rule" was broken, the electronic state of the cobalt active center was optimized, and Co(IV)=O species were generated. This solved the problem of low efficiency of cobalt catalyst activation of PMS in the existing technology and achieved the effect of efficient degradation of organic pollutants.

CN122273559APending Publication Date: 2026-06-26HEBEI AGRICULTURAL UNIV.
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Patent Information

Application Number
CN202610603378.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-05-06
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing transition metal catalysts are constrained by the "oxygen wall rule" during the activation of PMS, which results in the electronic state of the cobalt active center being locked, making it difficult to efficiently form a high valence state and thus unable to effectively degrade organic pollutants.

Method used

By preparing cobalt-based metal nitride nanozymes Co4N-600, and sintering benzimidazole, cobalt nitrate hexahydrate, and triethylamine in a specific atmosphere, Co4N-600 nanozymes are formed, breaking the "oxygen wall rule", optimizing the electronic state of the cobalt active center, generating Co(IV)=O species, and activating PMS.

Benefits of technology

It achieves highly efficient degradation of organic pollutants, with a degradation rate increased by 63.9 times. It exhibits excellent stability and reusability, making it suitable for industrial production. The degradation products have low toxicity and are applicable to complex aquatic environments.

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Abstract

This invention provides a cobalt-based metal nitride nanozyme, its preparation method, and its applications. The cobalt-based metal nitride nanozyme provided by this invention is a cobalt-based nitride nanozyme Co4N-600 with a Co-N coordination structure. Experiments have shown that the nanozyme provided by this invention, when used as a catalyst in a PMS system for degrading organic matter, exhibits a high degradation rate and low toxicity of the degradation products, demonstrating great potential for application in complex aquatic environments. Furthermore, the nanozyme provided by this invention exhibits good stability and reproducibility, showing broad application prospects.
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