A flower-branch-like multifunctional CuO@MnO2 composite material, its preparation method and application

By preparing a flower-shaped CuO@MnO2 composite material, the problems of easy agglomeration of CuO catalyst under neutral and weakly acidic conditions and poor conductivity of MnO2 were solved, achieving efficient and stable degradation of organic pollutants, and having economical and environmentally friendly water treatment applications.

CN122273535APending Publication Date: 2026-06-26LIAONING UNIVERSITY
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
LIAONING UNIVERSITY
Filing Date
2026-04-03
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing CuO catalysts tend to agglomerate and decrease in activity under neutral and weakly acidic conditions. MnO2 has good stability but poor conductivity. The efficiency of single catalysts in the degradation of organic pollutants activated by PMS is limited, and tetracycline antibiotics are difficult to treat effectively.

Method used

A flower-shaped CuO@MnO2 composite material was prepared by reacting rod-shaped CuO with potassium permanganate via a hydrothermal method to form a core-shell structure, which increases the interfacial contact area, promotes charge transfer and active oxygen generation, inhibits copper ion leaching, and improves stability and reusability.

Benefits of technology

It achieves good catalytic performance and stability in acidic environments, efficiently degrades organic pollutants, and is economical and environmentally compatible, making it suitable for large-scale production.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122273535A_ABST
    Figure CN122273535A_ABST
Patent Text Reader

Abstract

This invention belongs to the field of catalyst technology, and relates to a flower-like multifunctional CuO@MnO2 composite material, its preparation method, and its application. The composite material constructs a flower-like core-shell structure with CuO as the core and thin-film MnO2 as the shell. The preparation method is as follows: rod-shaped copper hydroxide is added to deionized water and ultrasonically mixed to obtain a copper hydroxide suspension; potassium permanganate is dissolved in the copper hydroxide suspension and ultrasonically mixed to obtain a mixed solution B; mixed solution B is subjected to a hydrothermal reaction, and after the reaction is completed, it is cooled, washed, and dried to obtain the flower-like multifunctional CuO@MnO2 composite material. This method not only maximizes the interfacial contact area between the two phases and promotes interfacial charge transfer to achieve a synergistic catalytic effect, but also provides a MnO2 shell with good stability, forming a physical and chemical barrier for the CuO core and effectively inhibiting the excessive leaching of copper ions. Furthermore, the prepared CuO@MnO2 exhibits good catalytic performance, stability, and reproducibility.
Need to check novelty before this filing date? Find Prior Art