Preparation and application of composite g-c3n4 / vpo photothermal catalytic material

By electrostatically assembling g-C3N4/VPO photothermal catalytic material, the problems of high energy consumption and numerous side reactions in the selective oxidation of n-butane at high temperatures have been solved, enabling the efficient preparation of maleic anhydride at low temperatures, which has industrialization potential.

CN122164465APending Publication Date: 2026-06-09INSTITUTE OF PROCESS ENGINEERING CHINESE ACADEMY OF SCIENCES
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
INSTITUTE OF PROCESS ENGINEERING CHINESE ACADEMY OF SCIENCES
Filing Date
2024-12-09
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing technologies require high temperatures in the selective oxidation of n-butane to prepare maleic anhydride, resulting in high energy consumption and numerous side reactions, making it difficult to achieve efficient C-H bond activation and product selectivity at lower temperatures.

Method used

An electrostatic assembly strategy was used to assemble g-C3N4 nanosheets with vanadium phosphorus oxygen nanosheets to form g-C3N4/VPO photothermal catalytic material, which was used to achieve selective oxidation of n-butane to prepare maleic anhydride under photothermal conditions.

Benefits of technology

The efficient and selective oxidation of n-butane was achieved at a lower temperature, reducing reaction energy consumption and avoiding deep oxidation of the target product, thus showing broad industrial application prospects.

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Abstract

The application discloses a kind of preparation and application of g-C3N4 / VPO photothermal catalytic material, its characteristics are that g-C3N4 nanosheet is assembled with VPO nanosheet using electrostatic assembly strategy, and photothermal catalytic material of general formula g-C3N4 / VPO is obtained.Under photothermal condition, g-C3N4 / VPO is used as photothermal catalyst, and high-efficiency selective oxidation of n-butane is carried out to prepare maleic anhydride at low temperature.Compared with prior art, the application has the advantages of low reaction temperature, high selectivity, mild preparation conditions, large-scale preparation, green reaction, and wide application prospect.
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