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Zirconium-based metal organic framework material as well as preparation method and application thereof

An organic framework and metal-based technology, applied in the field of zirconium-based metal-organic framework materials and their preparation, can solve the problems of low powder generation rate, low product synthesis rate, long reaction time, etc., and achieve good shape and repeatability The effect of high and high adsorption selectivity

Active Publication Date: 2021-07-09
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005]However, the reported Zr-fum-fcu-MOF materials are all directly synthesized by solvothermal method, but the synthesis time of this method is long and the product synthesis rate is low. It will cause a lot of waste of energy. At present, Zr-fum-fcu-MOF is generally prepared by solvothermal method, that is, the mixed solution containing zirconium source and organic ligand is put into the reaction kettle, and the reaction product is obtained at a certain temperature for a certain period of time. , then washed, filtered and dried to obtain Zr-fum-fcu-MOF
However, the reaction time required by the solvothermal method is long, generally more than 24h, so the energy consumption is high, and the formation rate of Zr-fum-fcu-MOF powder with good morphology is low

Method used

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  • Zirconium-based metal organic framework material as well as preparation method and application thereof
  • Zirconium-based metal organic framework material as well as preparation method and application thereof
  • Zirconium-based metal organic framework material as well as preparation method and application thereof

Examples

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Embodiment 1

[0029] This example provides a method for preparing a zirconium-based metal organic framework material (i.e. Zr-fum-fcu-MOF powder, the same below). The specific preparation method is as follows:

[0030] (1) 0.92g ZrOCl 2 ·8H 2O was dispersed in 72ml of DMF (N,N-dimethylformamide), stirred and configured to obtain solution A; then 0.324g fum (fumaric acid) was added;

[0031] (2) Put the solution A in a water bath at 25°C and stir evenly, continue to add 15.9ml FA (formic acid), stir until clear, and obtain a mixed solution.

[0032] (3) Transfer the mixed solution to a microwave reactor, microwave reaction at 100°C for 1h, take out the reaction product after the reaction and wash it with DMF for several times, put the washed powder in a drying oven and dry it at 120°C for 24h , to obtain Zr-fum-fcu-MOF powder.

[0033] The Zr-fum-fcu-MOF powder obtained by this embodiment 1 is white, and its SEM photo is as follows figure 1 As shown in the figure (a), it shows that the p...

Embodiment 2

[0036] (1) 0.92g ZrOCl 2 ·8H 2 O was dispersed in 72ml DMF to obtain solution A; then 0.324g fum was added, and solution A was placed in a water bath at 25°C and stirred evenly;

[0037] (2) Put solution A in a water bath at 25°C and stir evenly, continue to add 10.6ml FA, stir until clear, and obtain a mixed solution;

[0038] (3) is the same as step (3) in Example 1.

Embodiment 3

[0040] (1) 0.92g ZrOCl 2 ·8H 2 O was dispersed in 36ml DMF to obtain solution A; then 0.324g fum was added, and solution A was placed in a water bath at 25°C and stirred evenly;

[0041] (2) Put solution A in a water bath at 25°C and stir evenly, continue to add 18.6ml FA, stir until clear, and obtain a mixed solution;

[0042] (3) is the same as step (3) in Example 1.

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Abstract

The invention discloses a zirconium-based metal organic framework material, the molecular formula of the zirconium-based metal organic framework material is Zr6O4(OH)4(C4H4O4)6.solvent. In the Zr6O4(OH)4(C4H4O4)6.solvent, the connection mode of Zr6O4(OH)4 is 12 connection, and Zr6O4(OH)4 is crystallized in a Pn-3 space group. The invention also provides a preparation method and application of the zirconium-based metal organic framework material, the preparation method is mainly a microwave-assisted synthesis method. The prepared zirconium-based metal organic framework material has a good application effect on gas adsorption and separation, especially has a good adsorption and separation effect on CO2, propylene and ethylene gas, and the preparation method is high in synthesis efficiency, high in utilization efficiency of raw materials and high in popularization and use value.

Description

technical field [0001] The invention relates to the technical field of metal organic framework materials, in particular to a zirconium-based metal organic framework material and a preparation method thereof. Background technique [0002] With the vigorous development of industrial production, the consumption of fossil fuels has increased rapidly, and the resulting greenhouse gases have been emitted into nature in large quantities. Although relative to other greenhouse gases, CO 2 The greenhouse effect is weak, but the highest content in the atmosphere. Therefore, CO 2 The capture technology has received great attention from the international community. Conventional CO 2 Separation techniques include cryogenic distillation, adsorption, and membrane separation, where an alcoholamine solution is used to absorb CO 2 The technology is the most widely used, but there are disadvantages of high cost and high energy consumption. On the contrary, adsorption separation of porous ...

Claims

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Application Information

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IPC IPC(8): C08G83/00C07C7/12C07C11/04C07C11/06B01J20/22B01J20/30B01D53/02
CPCC08G83/008B01J20/226B01D53/02C07C7/12B01J2220/4806B01J2220/4812B01D2253/204C07C11/04C07C11/06Y02P20/50Y02P20/151Y02C20/40
Inventor 刘浩周陈周俊杰陈亮
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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