A cerium-iron-nitrogen-doped carbon nanozyme, its preparation method and application

By designing cerium-iron-nitrogen-doped carbon nanozymes, the problems of structural stability and specific recognition of bimetallic nanozymes were solved, enabling rapid and efficient detection and degradation of organophosphorus pesticides, which is suitable for portable sensors.

CN122298475APending Publication Date: 2026-06-30BEIJING UNIV OF CHEM TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING UNIV OF CHEM TECH
Filing Date
2026-05-18
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing bimetallic nanozymes suffer from insufficient structural stability, dispersed catalytic active sites, and limited functionality, lacking the ability to specifically identify organophosphorus pesticides and failing to meet the requirements for rapid and sensitive on-site detection.

Method used

The cerium-iron-nitrogen-doped carbon nanozyme is composed of a hexanuclear cerium cluster and an iron-nitrogen-carbon two-dimensional carrier to form a strong electronic coupling interface, construct a phosphate-specific recognition and mass transfer channel, realize multi-enzyme catalytic activity, simulate the activity of a variety of natural enzymes, and efficiently catalyze the characteristic reactions of organophosphorus pesticides.

Benefits of technology

It enables rapid and highly sensitive detection and degradation of organophosphorus pesticides, possesses multi-element catalytic activity and specific recognition capabilities, and is suitable for portable sensors to meet the needs of on-site real-time detection.

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Abstract

This invention discloses a cerium-iron-nitrogen-doped carbon nanozyme, its preparation method, and its applications, belonging to the field of environmental pollutant detection technology. The cerium-iron-nitrogen-doped carbon nanozyme disclosed in this invention is composed of a two-dimensional planar iron-nitrogen-carbon support and a surface-loaded hexanuclear cerium cluster catalytic center. This cerium-iron-nitrogen-doped carbon nanozyme possesses advantages such as structural stability, well-defined and diverse catalytic activities, and strong specificity for target analytes. It can efficiently catalyze the characteristic reactions of organophosphorus pesticides by mimicking the activities of various natural enzymes, achieving rapid and highly sensitive detection of these pesticides and efficiently degrading and recovering inorganic phosphates from organophosphorus pesticide residues.
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