Preparation method of conjugated three-dimensional porphyrin-based covalent organic framework material

A covalent organic framework and three-dimensional porphyrin-based technology, applied in chemical instruments and methods, organic compound/hydride/coordination complex catalysts, physical/chemical process catalysts, etc., can solve porosity reduction and three-dimensional structure interpenetration , less research work and other issues, to achieve the effect of improving the performance of biomimetic catalysis
CN110294843AActive Publication Date: 2019-10-01JIANGNAN UNIV
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGNAN UNIV
Publication Date
2019-10-01

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Abstract

The invention discloses a preparation method of a conjugated three-dimensional porphyrin-based covalent organic framework material. The preparation method comprises the following steps: taking 3,3', 5,5'-tetra (4-formylphenyl) hexamethylbiphenyl (TFBM) and a series of porphyrin derivatives as raw materials, o-dichlorobenzene and n-butanol as solvents and acetic acid as a catalyst, and carrying outsolvothermal reaction for several days; after the reaction is finished, sequentially using DMF and THF for suction filtration and washing, carrying out soxhlet extraction for 24 hours, and carrying out vacuum drying to obtain purple black powder, namely the target product. For the first time, tetrahedral tetraaldehyde based on steric hindrance effect is used as a building block, so that the material has a fully conjugated three-dimensional skeleton structure, good thermal stability and chemical stability, and porphyrin units facing three-dimensional pore channels are used as single active catalytic sites, so that the material shows good application prospects in the field of bionic catalysis.
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Description

technical field

[0001] The invention belongs to the field of covalent organic framework materials, and in particular relates to a preparation method of a conjugated three-dimensional porphyrin-based covalent organic framework material.

[0002] technical background

[0003] Covalent organic frameworks (COFs) are a new type of crystalline organic porous materials formed by dynamic covalent bonds. Compared with traditional pure inorganic molecular sieves and porous carbon materials, this material has the advantages of precise design, adjustable structure, ordered channels and diverse functions. However, COF materials are mostly pure organic porous polymers, and most COF materials themselves do not have active catalytic sites. The research on heterogeneous catalysis mainly focuses on using COF only as a catalytic carrier material, that is, using COF to disperse and immobilize it with catalytic activity. of nanoparticles. This not only fails to reflect the advantages of COF as ...

Claims

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