Application of metal ion doped graphene oxide membrane catalytic material in synthesis of sulfone by catalyzing thioether oxidation reaction

Through the use of metal ion-doped graphene oxide film catalytic materials, two-dimensional interlayer domain confined channels and metal activity centers are provided, which solves the problem that existing catalysts are difficult to achieve rapid and efficient catalytic sulfide oxidation reaction at room temperature, and achieves high conversion and selective sulfone generation.

CN120058570AActive Publication Date: 2025-05-30TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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Patent Information

Application Number
CN202510191232.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-20
Publication Date
2025-05-30
Estimated Expiration
2045-02-20

AI Technical Summary

Technical Problem

When existing catalysts catalyze the sulfide oxidation reaction to form sulfone, the reaction temperature is high, the reaction time is long, and the amount of oxidant is used, making it difficult to achieve rapid and efficient catalysis at room temperature.

Method used

A metal ion-doped graphene oxide film catalytic material is used to add metal salt to the dispersion of graphene oxide, and then use vacuum suction filtration to prepare a metal ion-doped graphene oxide film, providing a two-dimensional interlayer confined channel and metal active center, and synergistically catalyze the sulfide oxidation reaction.

Benefits of technology

The rapid and efficient catalytic sulfide oxidation of sulfone is achieved at room temperature. The reaction time is within 1-60 seconds, the conversion rate reaches 90-100%, the selectivity of sulfone reaches 60-100%, and the amount of oxidant is reduced.

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Abstract

The invention relates to application of a metal ion doped graphene oxide membrane catalytic material to efficiently and rapidly catalyze thioether to oxidize and synthesize sulfone at room temperature. Metal ions are added into dispersion liquid of graphene oxide, so that the graphene oxide interacts with the metal ions, the metal ions are doped, and then the dispersion liquid of the graphene oxide doped with the metal ions is prepared into the metal ion doped graphene oxide membrane catalytic material by using a vacuum filtration method. And the content of metal ions in the metal ion doped graphene oxide membrane catalytic material is continuously adjustable. Compared with a traditional catalytic method, the method has the advantages that a thioether substrate and an oxidizing agent react in a two-dimensional interlayer confinement channel of the metal ion doped graphene oxide membrane catalytic material in a continuous mobile phase reaction mode, and a product flows out along with a mobile phase; the catalytic method can achieve the purposes of high conversion rate (90-100%), high selectivity (60-100%) and high speed (1-60 s) of thioether oxidation reaction at room temperature.
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