Preparation method of metal organic framework material film as well as product and application of metal organic framework material film

A metal-organic framework and film technology, which is applied in layered products, chemical instruments and methods, lamination devices, etc., can solve the problems of difficult production and application, long production cycle, difficult to produce dense films, etc. Large-scale promotion, good gas separation, and strong repeatability

Inactive Publication Date: 2014-06-25
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] For example, although the solvothermal method is relatively simple to prepare, its synthetic material is mainly powder, and it is difficult to produce a dense film;
[0005] For example, the thickness of the film prepared by the sol-gel method and the colloidal deposition method is difficult to be uniform, and the uniformity is not good;
[0006] For example, the steps of the layer-by-layer growth method are cumbersome and the film growth cycle is long;
[0007] For example, the development of microwav

Method used

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  • Preparation method of metal organic framework material film as well as product and application of metal organic framework material film
  • Preparation method of metal organic framework material film as well as product and application of metal organic framework material film
  • Preparation method of metal organic framework material film as well as product and application of metal organic framework material film

Examples

Experimental program
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Effect test

Embodiment 1

[0036] 1) Under magnetic stirring, add 1.4mM ethanolamine aqueous solution to the same volume of 4mM copper nitrate aqueous solution. After 1 minute, slow down the stirring speed, and seal the reaction vessel. After 24 hours, a copper cadmium hydroxide nanowire solution is obtained;

[0037] 2) Mix 30ml nanowire solution with 1ml diameter 10nm at a concentration of 5.7×10 12 pcs / ml of citrate-modified gold nanoparticles (manufacturer: BBInternational) were evenly mixed, filtered to form a 600 thick gold-nanowire layer on the porous alumina membrane, and the diameter of the porous alumina membrane was 2.5cm , pore size 200nm, porosity 25-50%;

[0038] 3) Add the gold-nanowire layer to the trimesic acid / ethanol aqueous solution with a concentration of 10 5mM, the volume ratio of ethanol to water in the ethanol aqueous solution is 1:1, and react for two hours at room temperature to obtain a metal organic framework film.

[0039] The metal-organic framework film prepared in this...

Embodiment 2

[0041] 1) Under magnetic stirring, add 1.4mM ethanolamine aqueous solution to the same volume of 4mM copper nitrate aqueous solution. After 1 minute, slow down the stirring speed, and seal the reaction vessel. After 24 hours, a copper cadmium hydroxide nanowire solution is obtained;

[0042] 2) Mix 60ml nanowire solution with 2ml diameter 100nm at a concentration of 5.6×10 9 pcs / ml of citrate-modified gold nanoparticles (manufacturer: BBInternational) were uniformly mixed, filtered to form a 1200nm thick gold-nanowire layer on the porous alumina membrane, the diameter of the porous alumina membrane was 2.5cm , pore size 200nm, porosity 25-50%;

[0043] 3) Add the gold-nanowire layer to 20ml of trimesic acid / ethanol aqueous solution with a concentration of 5mM, the volume ratio of ethanol to water in the ethanol aqueous solution is 1:1, and react for two hours at room temperature to obtain a metal organic framework film.

[0044] The metal-organic framework film prepared in t...

Embodiment 3

[0046] 1) Under magnetic stirring, add 1.4mM ethanolamine aqueous solution to the same volume of 4mM copper nitrate aqueous solution. After 1 minute, slow down the stirring speed, and seal the reaction vessel. After 24 hours, a copper cadmium hydroxide nanowire solution is obtained;

[0047] 2) Mix 30ml nanowire solution with 1ml diameter 50nm at a concentration of 4.5×10 10 pcs / ml of citrate-modified gold nanoparticles (manufacturer: BBInternational) were evenly mixed, filtered to form a 600nm-thick gold-nanowire layer on the porous alumina membrane, and the diameter of the porous alumina membrane was 2.5cm , pore size 200nm, porosity 25-50%;

[0048] 3) Add the gold-nanowire layer to 10ml of trimesic acid / ethanol aqueous solution with a concentration of 5mM, the volume ratio of ethanol to water in the ethanol aqueous solution is 1:1, and react for two hours at room temperature to obtain a metal organic framework film.

[0049] figure 2 with 3 These are the surface SEM a...

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Abstract

The invention discloses a preparation method of a metal organic framework material film, wherein the preparation method comprises the following steps: mixing 1-1.5mM ethanol amine aqueous solution with a same volume of 2-5mM copper nitrate aqueous solution by stirring magnetically, carrying out sealed reaction to obtain a copper hydroxide nanowire solution; then mixing 30-60ml of the copper hydroxide nanowire solution with 1-2ml of gold nanoparticle modified by citric acid root, filtering through a filtering film, and then depositing on the filtering film to obtain a gold-copper hydroxide nanowire layer; finally mixing the gold-copper hydroxide nanowire layer with 10-20ml of 4-10mM trimesic acid/ethanol aqueous solution to react for 1-5 hours, thus obtaining the metal organic framework material film. The invention also discloses application of the metal organic framework material film prepared by the preparation method and application of the metal organic framework material film in gas separation. The metal organic framework material film is formed by stacking cubic crystals; an exposed crystal plane is a {100} family of crystal plane.

Description

technical field [0001] The invention relates to a preparation method of a microporous film, in particular to a preparation method of a metal organic framework film and its product and application. Background technique [0002] Metal-organic framework films are a class of multilayer materials with thicknesses ranging from nanometers to micrometers that are physically or chemically attached to (functionalized) substrates. Ideally, metal-organic framework films have smooth surfaces and high homogeneity At the same time, due to its high porosity and good chemical stability, it has good application prospects in many fields such as adsorption separation, catalytic reaction, drug carrier and optical material. [0003] At present, there are many methods for preparing metal-organic framework thin films, including traditional solvothermal method, layer-by-layer growth method, sol-gel method, colloidal deposition method, and relatively novel microwave synthesis method, step-by-step liq...

Claims

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Application Information

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IPC IPC(8): B32B5/18B32B5/24B32B37/24
Inventor 彭新生毛祎胤曹玮李军伟
Owner ZHEJIANG UNIV
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