Preparation method and application of porous nano metal organic framework material

A nano metal and organic framework technology is applied to the preparation of porous nano metal organic framework materials and the application field of adsorption and separation, which can solve the problems of cumbersome production steps, high economic cost and low yield, and achieves improved uniformity and synthesis. Efficiency, high surface area, large pore volume effect
CN104892518AActive Publication Date: 2015-09-09DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
Publication Date
2015-09-09

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Abstract

The invention aims to provide a preparation method and application of a porous nano metal organic framework material, and is characterized in that the preparation method comprises the steps: adding a metal ion, an organic ligand, a surfactant and a nanocrystalline guide agent or a reagent forming the nanocrystalline guide agent into a growth medium, forming a framework structure through chemical complexation, crystallizing, filtering, washing, drying, and finally obtaining the porous nano metal organic framework material. The addition amount of the surfactant is 0-30% of the molar concentration of the metal ion; the metal ion is one or more of Cu<II>, Al<III>, Mg<II>, Fe<III>, Ni<II>, Co<II> and Zn<II>; the organic ligand has at least one atom independently selected from oxygen, sulfur and nitrogen and can be subjected to coordinated complexation to the metal ion through the atom. The method not only can effectively suppress the size of MOFs materials, but also easily improves size homogeneity and synthetic efficiency of the product.
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Description

technical field

[0001] The invention belongs to the field of new materials and synthetic chemistry, and in particular relates to the preparation of a porous nano metal organic framework material and its application in the adsorption and separation of low-quality methane gas. Background technique

[0002] Metal Organic Frameworks (MOFs) materials are one-dimensional, two-dimensional or three-dimensional network materials formed by the coordination complexation of metal ions or their nanoclusters and organic linkers. Metal-organic frameworks have high specific surface areas, extremely low densities, and specific pore distributions. In addition, the cavity structure and surface chemical structure of metal organic framework materials can be effectively designed and manufactured by physical and chemical means. Therefore, the applications of MOFs in gas storage / separation, catalytic processes, drug delivery, and optoelectronics have received extensive attention.

[0003] Usually...

Claims

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