Microporous material loaded ion liquid composite material or film, and preparation thereof

A composite material and ionic liquid technology, applied in the field of invention patents, can solve problems such as limiting the application prospects of liquid films and loss of liquid films, achieve good industrial application prospects, prevent liquid film loss, and improve stability

Inactive Publication Date: 2015-06-24
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Then, in the actual application of high-pressure gas adsorption and separation, there will be a problem of liquid film loss caused by excessive air pressure, which greatly limits the application prospects of liquid film.

Method used

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  • Microporous material loaded ion liquid composite material or film, and preparation thereof
  • Microporous material loaded ion liquid composite material or film, and preparation thereof
  • Microporous material loaded ion liquid composite material or film, and preparation thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] Embodiment 1 Utilizes in situ synthesis method to prepare ZIF-8 ionic liquid composite material

[0065] Weigh 0.367g zinc nitrate hexahydrate (Zn(NO 3 ) 2 4H 2 O) and 0.811 g of 2-methylimidazole (mim), to the above solid mixture was added 69 g of [bim][PF 6 ] Ionic liquid. This mixture was sonicated for 7200 s in a water bath at room temperature to facilitate the dissolution and interaction of the solid mixture in the ionic liquid. Afterwards, the mixture was stirred at room temperature for 86400 s.

[0066] The reaction mixture was centrifuged at room temperature to obtain the corresponding composite material. The solid was then ultrasonically washed with 20 ml of methanol to remove residual ionic liquid on the surface. And the above washing process was repeated three times. Finally, the product was fully dried in a 60°C drying oven.

[0067] For comparison, the corresponding ZIF-8 nanoparticles were synthesized at room temperature using methanol as solvent. ...

Embodiment 2

[0071] Example 2 ZIF-8 is immersed in ionic liquid and fully stirred to prepare ZIF-8 ionic liquid composite material

[0072] Synthesize ZIF-8 nanoparticles at room temperature, and the molar composition of the synthesis solution is Zn(NO 3 ) 2 4H 2 O:mim:MeOH=1:8:700. To Zn(NO 3 ) 2 4H 2A certain amount of methanol was added to the solid mixture of O and mim and stirred at room temperature for 86400s. After the reaction, the mixture was centrifuged to obtain the corresponding solid, which was ultrasonically washed in methanol to remove unreacted raw materials. The washing process was repeated three times, and finally the obtained solid was fully dried in a 60°C drying oven.

[0073] Dip 0.5g ZIF-8 into 10g[bim][PF 6 ] in the ionic liquid, were stirred at room temperature and pressure for 86400s. Afterwards, the material was separated from the mixture by centrifugation and ultrasonically washed three times with 20 ml of methanol, and finally the obtained solid was ful...

Embodiment 3

[0075] Example 3 ZIF-8 is immersed in ionic liquid / methanol mixture and fully stirred to prepare ZIF-8 ionic liquid composite material

[0076] Synthesize ZIF-8 nanoparticles at room temperature, and the molar composition of the synthesis solution is Zn(NO 3 ) 2 4H 2 O:mim:MeOH=1:8:700. To Zn(NO 3 ) 2 4H 2 A certain amount of methanol was added to the solid mixture of O and mim and stirred at room temperature for 86400s. After the reaction, the mixture was centrifuged to obtain the corresponding solid, which was ultrasonically washed in methanol to remove unreacted raw materials. The washing process was repeated three times, and finally the obtained solid was fully dried in a 60°C drying oven.

[0077] 1.2g[bim][PF 6 ] The ionic liquid and 3.75g methanol were mixed and dissolved to obtain a compatible product, and the mass fraction of the ionic liquid was 24%. 0.5g ZIF-8 was immersed in the mixture of ionic liquid and methanol, and stirred for 3600s and 86400s respecti...

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Abstract

The invention relates to a microporous material loaded ion liquid composite material or film, and preparation thereof. According to the present invention, the hole cage of a crystallized or amorphous microporous material is adopted as an ion liquid support carrier to prepare the corresponding novel microporous material-ion liquid composite material or microporous material-ion liquid composite film; in-situ synthesis and post-treatment are performed to obtain the novel microporous material loaded ion liquid composite material and the film thereof; and the novel microporous material loaded ion liquid composite material and the film thereof provide special selective adsorption and good separation and purification on small molecule gas.

Description

technical field [0001] The invention belongs to the field of invention patents, and specifically relates to a composite material or film loaded with ionic liquid by a microporous material and its preparation. Background technique [0002] Ionic liquids are ionic salts formed from quaternary ammonium cations, quaternary phosphine cations, pyridinium cations and imidazolium cations. Usually, the melting point of such salts is lower than 100°C, and some even show a good flow state at room temperature, so they are called room temperature ionic liquids. There are many types of anions that form ionic liquids, and the common ones are halogen ions, nitrate ions, carboxylate ions, boron tetrafluoride anions, phosphorus hexafluoride anions, and bis(trifluoromethanesulfonimide) anions. The vapor pressure of ionic liquid is almost negligible, and its physical and chemical properties are easily adjusted by changing the types of anions and cations. It can be said that ionic liquid is a k...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/28B01J20/22B01J20/30
Inventor 杨维慎班宇杰李砚硕
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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