An ozone catalyst, its preparation method and application

By preparing a core-shell structured ozone catalyst, the problems of single active center and insufficient interfacial structure in traditional catalysts were solved, achieving efficient ozone catalytic activation and stability, and improving the purification capacity of industrial wastewater treatment.

CN122076449APending Publication Date: 2026-05-26EAST CHINA ENGINEERING SCIENCE AND TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
EAST CHINA ENGINEERING SCIENCE AND TECHNOLOGY CO LTD
Filing Date
2026-03-19
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Traditional ozone catalysts suffer from limited activity of single-metal active centers, single-component carriers, and a lack of hierarchical interfacial structures, resulting in low ozone catalytic oxidation efficiency and difficulty in effectively removing recalcitrant organic matter.

Method used

The ozone catalyst with a core-shell structure consists of an inorganic support layer, a composite metal oxide layer, and a metal oxide layer from the inside out. It is prepared by granulation and calcination to form a multi-level structure, which improves the exposure of active sites and the migration of interfacial electrons, thereby enhancing catalytic activity and stability.

Benefits of technology

It significantly improves the catalytic activity and stability of ozone catalysts, enhances the degradation efficiency of recalcitrant organic matter, and exhibits excellent purification effects, especially in industrial wastewater treatment.

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Abstract

This invention discloses an ozone catalyst, its preparation method, and its application, belonging to the field of environmental materials technology. The ozone catalyst has a core-shell structure; the core-shell structure consists of an inorganic support layer, a composite metal oxide layer, and a metal oxide layer, from the inside out. The inorganic support layer is composed of one or more of attapulgite, kaolin, and modified silica-alumina minerals; the composite metal oxide layer is composed of calcium oxide, magnesium oxide, kaolin, and attapulgite; and the metal oxide layer is composed of iron oxide, copper oxide, and cobalt oxide. The ozone catalyst has a multi-level structure of core-functional layer-shell layer, exhibiting excellent catalytic activity, structural stability, and metal immobilization ability. Applying the ozone catalyst to the advanced treatment of industrial wastewater can significantly improve the degradation efficiency of recalcitrant organic matter.
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