A metal organic framework derived MoWO4 catalyst, and a preparation method and application thereof

By preparing a metal-organic framework-derived MoWO4 catalyst, the problem of low removal efficiency of sulfadiazine in the prior art was solved, achieving highly efficient catalytic degradation with excellent catalytic performance and stability.

CN119972051BActive Publication Date: 2026-06-09NANJING UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NANJING UNIV
Filing Date
2024-12-31
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing technologies are insufficient for the efficient removal of sulfadiazine from water, especially given the limited research on bimetallic oxide catalysts and the limited catalytic activity of single metal oxides.

Method used

By using a metal-organic framework-derived MoWO4 catalyst and adjusting the ratio and distribution of molybdenum and tungsten, a catalyst with high specific surface area and abundant surface hydroxyl groups was prepared. This catalyst activated PMS to generate hydroxyl radicals and sulfate radicals, thereby improving the catalytic degradation ability of sulfadiazine.

Benefits of technology

It achieves highly efficient catalytic degradation of sulfadiazine, significantly improves catalytic activity, and has high electrical conductivity, good resistance to poisoning, strong thermal stability, and low environmental hazard. The catalyst can achieve a conversion rate of over 90% in a short time.

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Abstract

The application discloses a metal organic framework derived MoWO4 catalyst and a preparation method and application thereof, and belongs to the technical field of environmental catalytic purification. 2 The metal organic framework derived MoWO4 catalyst prepared by the application is in a plate shape, has a specific surface area greater than 30 m 2 / g, and contains a higher proportion of hydroxyl functional groups on the surface; the catalyst belongs to a bimetallic oxide catalyst, and has a catalytic activity obviously higher than that of a monometallic oxide catalyst; the catalyst prepared by the method has a high specific surface area and rich surface hydroxyl groups as active sites, so that the catalytic activity of the catalyst for PMS activation and sulfonamide degradation is obviously higher than that of a bimetallic oxide catalyst obtained by a conventional solvothermal synthesis method; the catalyst prepared by the method also has the advantages of good electrochemical performance and high stability, and can have a more long-term effect on the degradation of pollutants.
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