Ionic covalent organic nanomaterials and applications thereof

Ionic covalent organic nanomaterials were prepared by Knoevenagel condensation reaction, which solved the problem of insufficient hydrophilicity, achieved high efficiency in photocatalytic hydrogen evolution performance and chemical stability, and improved the photocatalytic hydrogen production rate under optimized conditions.

CN116948124BActive Publication Date: 2026-05-29LANZHOU UNIV +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
LANZHOU UNIV
Filing Date
2023-07-24
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

In the existing technology, ionic covalent organic nanomaterials have poor hydrophilicity in the field of photocatalytic hydrogen evolution, resulting in insufficient catalytic performance, and there is a lack of highly efficient photocatalysts that can be prepared by one-pot method.

Method used

Ionic covalent organic nanomaterials were prepared by Knoevenagel condensation reaction. N-ethyl-2,4,6-trimethylpyridinium bromide and other raw materials were used to form nanomaterials with strong conjugated structures to avoid crystal loss. The combination of co-catalyst, sacrificial electron donor and dispersant was optimized to improve hydrophilicity and photocatalytic performance.

Benefits of technology

It achieves high efficiency in photocatalytic hydrogen evolution performance and chemical stability. The design of ultrathin nanosheets exposes active sites, and the photocatalytic hydrogen production rate and efficiency are improved under optimized conditions.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses ion covalent organic nanomaterials and application thereof, and belongs to the technical field of photocatalytic hydrogen evolution. It comprises application of four kinds of ion covalent organic nanomaterials obtained by Knoevenagel condensation reaction of N-ethyl-2,4,6-trimethylpyridinium bromide with 1,3,5-tri(4-formylphenyl)triazine, 1,3,5-tri(4-formylphenyl)benzene, 4,4',4"-azinotribenzaldehyde and tri(4-aldehyde biphenyl) amine in photocatalytic hydrogen evolution. The four kinds of ion covalent organic nanomaterials in the application exhibit excellent photocatalytic hydrogen evolution performance and chemical stability.
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