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MOF material grafted with phospholipid bilayer on surface as well as preparation method and application of MOF material

A technology of phospholipid bilayer and lipid bilayer, which is applied in the field of membrane separation, can solve the problems of poor compatibility between fillers and polymers, and achieve the effect of good permeation rate

Active Publication Date: 2021-08-31
中恒新材料科技(山东)有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve technical problems such as the poor compatibility between the filler and the polymer and the "trade-off" effect, the application provides a MOF material with a phospholipid bilayer grafted on the surface and its preparation method and its use as a filler in C 3 h 6 / C 3 h 8 Application in Preparation of Mixed Matrix Membrane for Separation

Method used

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  • MOF material grafted with phospholipid bilayer on surface as well as preparation method and application of MOF material
  • MOF material grafted with phospholipid bilayer on surface as well as preparation method and application of MOF material
  • MOF material grafted with phospholipid bilayer on surface as well as preparation method and application of MOF material

Examples

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Effect test

preparation example 1

[0071] The preparation of parent ZIF-8 material, steps are as follows:

[0072] At room temperature, 3g of zinc nitrate hexahydrate was added to 100mL of methanol, and the resulting zinc nitrate methanol solution was directly added to 100mL of methanol solution containing 6.6g of 2-methylimidazole. After standing still for 24h, centrifuged at 9000rpm for 10min, The resulting precipitate was washed 3 times with methanol and dried in vacuo to obtain the parent ZIF-8 material.

preparation example 2

[0074] The preparation of parent ZIF-67 material, steps are as follows:

[0075] At room temperature, 3 g of cobalt nitrate hexahydrate was added to 100 mL of methanol, and the resulting cobalt nitrate methanol solution was directly added to 100 mL of methanol solution containing 6.6 g of 2-methylimidazole. After standing still for 24 h, centrifuged at 9000 rpm for 10 min, The resulting precipitate was washed three times with methanol and dried in vacuo to obtain the parent ZIF-67 material.

preparation example 3

[0077] The preparation of parent ZIF-71 material, steps are as follows:

[0078] At room temperature, 0.7 g of 4,5-dichloroimidazole was dissolved in 64 ml of N,N-dimethylformamide (DMF), and the obtained 4,5-dichloroimidazole N,N-dimethylformamide The solution was directly added to 64ml of N,N-dimethylformamide (DMF) containing 0.14g of zinc acetate dihydrate, reacted for 18h, centrifuged at 9000rpm for 10min, and the obtained precipitate was vacuum-dried overnight to obtain the parent ZIF-71 material .

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Abstract

The invention discloses an MOF material grafted with a phosphine ester bilayer on the surface as well as a preparation method and application thereof, and belongs to the technical field of membrane separation. The MOF material with the surface grafted with the phosphine ester bimolecular layer is characterized in that the phosphine ester bimolecular layer formed by n-octadecyl phosphonic acid-cholesterol-lecithin is grafted on the surface of a parent MOF material; and the matrix MOF material is ZIF-8, ZIF-67, ZIF-71, ZIF-90, MOF-808 or CuBTC. The preparation method comprises the steps of preparation of OPA-MOF, preparation of OLC-MOF and the like to obtain the OLC-MOF material. The mixed matrix membrane which is used for C3H6 / C3H8 separation and has good C3H6 permeation rate and C3H6 / C3H8 selectivity is obtained by taking the OLC-MOF material as a filler and a polymer and performing ultraviolet irradiation under the action of a photoinitiator.

Description

technical field [0001] The application belongs to the technical field of membrane separation, and specifically relates to a MOF material with a phospholipid bilayer grafted on the surface, a preparation method and an application thereof. Background technique [0002] Olefins play an important role in the chemical industry. For example, propylene is an intermediate in the synthesis of important chemicals such as propylene oxide, acrolein, acrylic acid, and polypropylene. In petrochemical production processes such as thermal cracking, catalytic cracking and propane dehydrogenation, a large amount of olefin / alkane gas mixture is produced, which requires efficient separation and purification technology for recovery and utilization. [0003] Due to the similar chemical and physical properties of olefins / alkanes, their boiling points and sizes are very similar, and the separation of olefins / alkanes has always been a high energy-consuming process in the petrochemical industry. Cu...

Claims

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Application Information

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IPC IPC(8): C08G83/00B01D71/72B01D71/52B01D53/22
CPCC08G83/008B01D71/72B01D71/52B01D53/228
Inventor 仲崇立孙玉绣耿晨旭乔志华
Owner 中恒新材料科技(山东)有限责任公司
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