A kind of preparation method of flower cluster-like hierarchical structure ZIF series metal organic framework

A metal-organic framework and hierarchical structure technology, applied in the field of nanomaterials, can solve the problems of less active sites, small specific surface area, and limited dispersion, and achieve high active sites, large specific surface area, and efficient preparation.
CN110776645BActive Publication Date: 2021-11-23ZHEJIANG UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZHEJIANG UNIV OF TECH
Publication Date
2021-11-23

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Abstract

The invention relates to the technical field of nanometer materials, in particular to a preparation method of ZIF series metal-organic frameworks with a flower cluster hierarchical structure. It includes: 1) preparation of template solution 2) preparation of precursor solution A containing metal ligands and precursor solution B containing organic ligands; 3) separation of precursors: mixing precursor solution A and precursor solution B and standing still, after standing Centrifuge to obtain the precursor; 4) Product acquisition: Add the precursor to the organic liquid, filter to remove impurities and centrifuge to separate the solid product, and then obtain the ZIF series metal organic framework with a flower cluster hierarchical structure. The preparation method of the present invention is simple and efficient, can realize high-efficiency preparation under low temperature conditions, and has low demand for equipment; the prepared ZIF series metal-organic frameworks with flower cluster-like hierarchical structure have larger specific surface area and higher active sites; overall The preparation is highly controllable, and is suitable for the preparation of various ZIF series metal-organic frameworks.
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Description

technical field

[0001] The invention relates to the technical field of nanometer materials, in particular to a preparation method of ZIF series metal-organic frameworks with a flower cluster hierarchical structure. Background technique

[0002] Metal-organic frameworks (MOFs) are porous materials with a uniform pore structure formed by the connection of metal ions and organic ligands through coordination bonds. In recent years, due to their high specific surface area, unique crystalline porosity, excellent thermal and chemical stability, MOFs have shown great potential application value in many fields. At present, the research on this kind of materials has realized the tailoring and assembly at the molecular level, gradually moving towards the level of controllable molecular design and synthesis, and has broad applications in research fields such as body separation and storage, heterogeneous catalysis, organic molecule adsorption, and drug delivery. prospect. Among them, t...

Claims

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