A hydrogen peroxide-induced electron transfer advanced oxidation system for removing organic pollutants and its application

By regulating the coordination environment and electronic structure of single-atom catalysts, the selectivity and stability issues of hydrogen peroxide activation process were resolved, achieving efficient and low-consumption removal of organic pollutants.

CN122324967APending Publication Date: 2026-07-03NANCHANG HANGKONG UNIVERSITY
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
NANCHANG HANGKONG UNIVERSITY
Filing Date
2026-03-30
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

In existing technologies, the hydrogen peroxide activation process has poor selectivity, high oxidant consumption, and is easily affected by the matrix of the coexisting environment, making it difficult to achieve a stable electron transfer process.

Method used

By employing a single-atom catalyst, including a modified graphitic carbon nitride support and metal active centers anchored thereon, the activation pathway of H2O2 is transformed from a non-selective free radical process to a selective surface electron transfer process by regulating the coordination environment and the electronic structure of the metal active sites.

Benefits of technology

It achieves efficient and low-consumption removal of organic pollutants, reduces the amount of oxidant added, and the catalyst maintains high activity and good stability in complex water conditions.

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Abstract

This invention discloses a hydrogen peroxide-induced electron transfer advanced oxidation system for removing organic pollutants and its application. The advanced oxidation system includes a hydrogen peroxide-induced electron transfer pathway and a single-atom catalyst. The single-atom catalyst includes a modified graphitic carbon nitride support and a metal single atom supported on the support. The metal single-atom site has a coordination environment jointly formed by the support and introduced carbon-nitrogen heterocyclic ligands. By regulating the electronic properties of the single-atom metal center, its d-band center is shifted downward, thereby inhibiting the breaking of O-O bonds in H2O2 and promoting its selective oxidation of organic pollutants through the electron transfer pathway in the form of a surface complex. The single-atom catalyst has high catalytic activity and selectivity in activating H2O2, and exhibits good anti-interference ability and stability in complex water quality and continuous flow reactions. In addition, it is suitable for efficient and green water treatment processes.
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