A kind of mof material with phospholipid bilayer grafted on the surface and its preparation method and application

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: 2022-03-08
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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  • A kind of mof material with phospholipid bilayer grafted on the surface and its preparation method and application
  • A kind of mof material with phospholipid bilayer grafted on the surface and its preparation method and application
  • A kind of mof material with phospholipid bilayer grafted on the surface and its preparation method and application

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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 application discloses a MOF material with a phospholipid bimolecular layer grafted on the surface, a preparation method and application thereof, and belongs to the technical field of membrane separation. The MOF material with phospholipid bilayer grafted on the surface is grafted with a phospholipid bilayer made of n-octadecylphosphonic acid-cholesterol-lecithin on the surface of the parent MOF material; the parent MOF material is ZIF‑8, ZIF‑67, ZIF‑71, ZIF‑90, MOF‑808, or CuBTC. Its preparation method includes steps such as the preparation of OPA-MOF and the preparation of OLC-MOF, and finally obtains the OLC-MOF material, which is used as a filler and a polymer, and under the action of a photoinitiator, it is irradiated by ultraviolet light to obtain a good C 3 h 6 Permeation rate and C 3 h 6 / C 3 h 8 optional C 3 h 6 / C 3 h 8 Mixed matrix membranes for separation.

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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Patent Type & Authority Patents(China)
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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