An organic amine-modified zeolite octahedral niobium oxide photocatalyst, its preparation method and application

CN122298501APending Publication Date: 2026-06-30UNIV OF SHANGHAI FOR SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
UNIV OF SHANGHAI FOR SCI & TECH
Filing Date
2026-05-06
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing organic amine-modified Nb2O5 and ZOMO-NbOx photocatalysts are difficult to remove NO efficiently and stably under visible light, and suffer from problems such as low surface electron transfer efficiency, narrow visible light response range, and weak gas phase adsorption and catalytic ability.

Method used

Organic amines were directly composited with zeolite octahedral niobium oxide by stirring to form a van der Waals heterojunction structure, which optimized the interfacial electronic structure and enhanced visible light absorption and photogenerated carrier migration.

Benefits of technology

It improves the photocatalytic degradation efficiency of NO, reduces the formation of byproducts, has a stable structure and performance, and is suitable for efficient NO removal under visible light.

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Abstract

This invention belongs to the field of functional materials technology, specifically relating to an organic amine-modified zeolite octahedral niobium oxide photocatalyst, its preparation method, and its application. The method includes the following steps: adding an organic amine to a zeolite octahedral niobium oxide suspension, stirring until homogeneous, centrifuging to obtain a precipitate, and drying to obtain an organic amine-modified zeolite octahedral niobium oxide photocatalyst with a van der Waals heterostructure. Compared with existing technologies, this preparation method avoids the cumbersome process of traditional modification methods. The organic amine@ZOMO-NbO prepared by this invention... x The powder exhibits excellent visible light photocatalytic performance by improving visible light absorption, optimizing the interfacial electronic structure, regulating the reaction pathway, and enhancing the migration and conversion of photogenerated carriers. It can efficiently remove NO and avoid the generation of NO2, which is more toxic.
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