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Method for preparing nanometer material@metal organic framework material

A technology of metal-organic frameworks and nanomaterials, which is applied in the field of composite materials and catalyst preparation, can solve the problems of difficult coating of nanoparticles and limited application range of MOFs, and achieve the effect of effective coating, widening application range and good packaging effect

Active Publication Date: 2016-11-16
NANJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional preparation methods often have problems such as the difficulty of completely covering nanoparticles and the limited scope of application of MOFs.

Method used

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  • Method for preparing nanometer material@metal organic framework material
  • Method for preparing nanometer material@metal organic framework material
  • Method for preparing nanometer material@metal organic framework material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1: Preparation of metal-organic complex CuHBTC

[0026] Will be dissolved with 2g Cu(C 2 h 3 o 2 ) 2 ·H 2 O in 15ml deionized water and dissolved in 1g trimesic acid (H 3 BTC) in 15ml ethanol solution was mixed, stirred, reacted for 3h, filtered and dried to obtain CuHBTC.

Embodiment 2

[0027] Embodiment 2: Preparation of metal-organic complex ZIF-L

[0028] Dissolve 0.059g of zinc nitrate hexahydrate and 0.13g of dimethylimidazole in 4ml of deionized water respectively, add 100μl of polyvinylpyrrolidone (molecular weight: 29000, 10mg / ml) to the aqueous solution of zinc nitrate hexahydrate, and sonicate for 1min After that, it was added into an aqueous solution of dimethylimidazole, stirred for 4 hours in an ice bath, centrifuged, washed with methanol three times, and dried to obtain ZIF-L.

Embodiment 3

[0030] Weigh 0.02g of CuHBTC and disperse it in 5ml of deionized water, add dropwise 100μl of 2wt% 13nm Au solution pre-dispersed in N,N-dimethylformamide (DMF), stir at room temperature for 2h, and centrifuge to obtain a solid material. 3.6g / L solid-liquid ratio Add 5ml deionized water to the solid material, gradually drop 500μl N,N-dimethylformamide solution, react at room temperature for 2h, centrifuge, and dry to obtain Au@CuBTC composite material.

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Abstract

The invention discloses a method for preparing a nanometer material@metal organic framework material. The method comprises the following steps: subjecting a nanometer material to pre impregnating and depositing on the surface of a metal organic complex, carrying out centrifugal separation so as to obtain a composite material containing the nanometer material, and subjecting the composite material to a reaction in a mixed solvent of an organic solvent or an organic solvent and water so as to obtain the nanometer material@metal organic framework material. Compared with a permeation method, the method provided by the invention can realize complete coating of the nanometer material, and achieves a better packaging effect. Compared to an in-situ growth method, the method can broaden the application scope of metal organic frameworks (MOFs) in the nanometer material@metal organic framework material, and realizes effective coating of carboxylic acid metal organic frameworks (MOFs) on the nanometer material.

Description

technical field [0001] The invention relates to the field of preparation of composite materials and catalysts, in particular to a method for preparing nanomaterials@metal organic framework materials. Background technique [0002] Metal organic frameworks (MOFs) are porous materials with a periodic network structure formed by metal ions or clusters and organic ligands through coordinated self-assembly. Due to their high specific surface area and high porosity, The special physical and chemical properties such as adjustable structure are widely used in the research of gas storage, separation, catalysis, sensing, drug delivery and other fields, and have attracted widespread attention from academia and industry. In recent years, in order to further utilize the structural advantages of MOFs and expand their functions, the development of composite materials of nanomaterials@MOFs has become a new research hotspot. Nanomaterials@MOFs composite materials not only ensure the physical...

Claims

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Application Information

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IPC IPC(8): C08J9/40C08L87/00C08G83/00
CPCC08G83/008C08J9/40C08L87/00C08J2387/00
Inventor 霍峰蔚管金菊张所瀛胡雨张伟娜黄维
Owner NANJING UNIV OF TECH
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