Metal organic framework membrane and preparation method and application thereof

A metal organic framework, solid carrier technology, applied in chemical instruments and methods, membrane technology, semi-permeable membrane separation, etc., can solve problems such as difficulty in preparing ZIF-8 membranes
CN104415670AActive Publication Date: 2015-03-18NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
Publication Date
2015-03-18

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Abstract

The present invention provides a high-selection hydrogen permeation separation performance metal organic framework membrane for efficient preparation, and especially relates to a zeolite imidazole organic framework membrane, and preparation method of ZIF-8 membrane and a metal organic framework membrane prepared by the method are provided. The method comprises the following steps: using dopamine for functional modification of a solid carrier; and synthesizing the metal organic framework membrane on the surface of the functionally modified solid carrier. By preparation of the metal organic framework membrane by the method, nucleation and growth are greatly enhanced, the prepared metal organic framework membrane is homogeneous and dense, falling-off condition after membrane formation can be significantly improved, and gas separation performance is good; the method has the advantages of mild operation condition, easy industrialized amplification, environment friendliness, and strong applicability. The method can also adopts microwave heating method, the reaction time can be shortened, and the cost of industrial production can be further reduced.
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Description

technical field

[0001] The invention relates to the field of metal organic framework membranes for gas separation and liquid separation. Specifically, the present invention relates to the preparation of uniform and dense metal-organic framework membranes with high selective hydrogen permeation separation performance through dopamine functional modification and the application of the prepared membranes. Background technique

[0002] The separation process is an important operation process in industrial production. Compared with traditional separation methods such as distillation, extraction, and adsorption, membrane separation has the advantages of low energy consumption, simple operation, low investment, and no pollution.

[0003] Metal-organic framework compounds are a new class of porous crystalline materials with regular pore structures developed in recent years, which have broad application prospects in the fields of gas adsorption and storage, catalysis, separation, and...

Claims

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