DUT-67 and batch preparation method and application thereof

A DUT-67, batch technology, applied in chemical instruments and methods, other chemical processes, sustainable manufacturing/processing, etc., can solve problems such as inability to carry out industrial production and application, high energy required for reaction, and long preparation time, etc. Achieve the effects of increasing the concentration of activation sites, increasing the probability of nucleation, and reducing activation energy

Inactive Publication Date: 2021-06-25
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the above defects or improvement needs of the prior art, the present invention provides a DUT-67 and its batch preparation method and application to solve the problems of long preparation time, low output, high energy required for the reaction and the impossibility of industrialized production in the prior art. and application technical issues

Method used

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  • DUT-67 and batch preparation method and application thereof
  • DUT-67 and batch preparation method and application thereof
  • DUT-67 and batch preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] The metal salt in this example is zirconium tetrachloride.

[0057] (1) first 81.60mmol zirconium tetrachloride is dissolved in 4.08mol ethanol, stir 10min under 300rpm speed and make it dissolve completely and obtain uniform solution;

[0058] (2) Add 40.80 mmol of organic ligands into the above solution, stir at 300 rpm for 10 min to make it evenly mixed.

[0059] (3) Then add the sodium hydroxide solution of 24.00mmol, stir;

[0060] (4) Heating to 60° C., stirring at 300 rpm for 2 hours to make it react completely, after the reaction is completed, naturally cool to room temperature, centrifuge to separate the solid, and wash away impurities in the solid with 20.40 mol of sodium formate solution;

[0061] (5) Dry the obtained solid at 80°C under normal pressure for 9 hours, and then vacuum-dry the obtained solid at 120°C for 9 hours. After drying, 16 g of DUT-67 can be obtained, which is designated as material 1.

Embodiment 2

[0063] The metal salt in this example is zirconium tetrachloride.

[0064] (1) first 81.60mmol zirconium tetrachloride is dissolved in 4.08mol ethanol, stir 10min under 300rpm speed and make it dissolve completely and obtain uniform solution;

[0065] (2) Add 20.40 mmol of organic ligands into the above solution, stir at 300 rpm for 10 min to make it evenly mixed.

[0066] (3) Then add the sodium hydroxide solution of 24.00mmol, stir;

[0067] (4) Heating to 60° C., stirring at 300 rpm for 2 hours to make it react completely, after the reaction is completed, naturally cool to room temperature, centrifuge to separate the solid, and wash away impurities in the solid with 20.40 mol of sodium formate solution;

[0068] (5) Dry the obtained solid under normal pressure at 80° C. for 9 hours, and then vacuum-dry the obtained solid at 120° C. for 9 hours. After drying, 10.5 g of DUT-67 can be obtained.

Embodiment 3

[0070] The metal salt in this example is zirconium tetrachloride.

[0071] (1) first 81.60mmol zirconium tetrachloride is dissolved in 4.08mol ethanol, stir 10min under 300rpm speed and make it dissolve completely and obtain uniform solution;

[0072] (2) Add 27.20 mmol of organic ligands into the above solution, stir at 300 rpm for 10 min to make it evenly mixed.

[0073] (3) Then add the sodium hydroxide solution of 24.00mmol, stir;

[0074] (4) Heating to 60° C., stirring at 300 rpm for 2 hours to make it react completely, after the reaction is completed, naturally cool to room temperature, centrifuge to separate the solid, and wash away impurities in the solid with 20.40 mol of sodium formate solution;

[0075] (5) Dry the obtained solid under normal pressure at 80° C. for 9 hours, and then vacuum-dry the obtained solid at 120° C. for 9 hours. After drying, 13.3 g of DUT-67 can be obtained.

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Abstract

The invention belongs to the related technical field of porous material preparation and application, and discloses a DUT-67 and a batch preparation method and application thereof. The method comprises the following steps: S1, dissolving a metal salt and an organic ligand in a solvent to obtain a mixed solution, the molar ratio of the organic ligand to the metal salt to the solvent being 1: 2: 100-1: 4: 400; S2, adding a conditioning agent into the mixed solution, wherein the conditioning agent is an alkaline conditioning agent; and S3, heating the solution obtained in the step S2, so that the metal salt and the organic ligand are subjected to reaction to obtain DUT-67, wherein the heating temperature ranges from 60 DEG C to 100 DEG C. According to the method, the preparation time of DUT-67 is remarkably shortened, the yield is increased, and the energy required by the reaction is reduced.

Description

technical field [0001] The invention belongs to the technical field related to the preparation and application of porous materials, and more specifically relates to a DUT-67 and its batch preparation method and application. Background technique [0002] Metal-organic framework materials are a class of porous materials formed by the self-assembly of metal ions or metal clusters and organic ligands. They have the advantages of high specific surface area, large pore volume, and adjustable structure. They are used in adsorption refrigeration, gas storage, optoelectronics, Catalysis and other fields have broad application prospects. DUT-67 is a zirconium-based metal-organic framework material with high specific surface area and pore volume. In addition, DUT-67 also has good chemical stability and thermal stability. [0003] As a new type of adsorbent, DUT-67 has a good application prospect in adsorption refrigeration systems, and its adsorption refrigeration performance is much...

Claims

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Application Information

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IPC IPC(8): C08G83/00B01J20/22
CPCB01J20/226C08G83/008Y02P20/10
Inventor 李松夏潇潇涂正凯蔡姗姗刘治鲁
Owner HUAZHONG UNIV OF SCI & TECH
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