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A kind of method for preparing metal organic framework material thin film

A metal-organic framework, material thin film technology, applied in the fields of organic chemistry, chemical instruments and methods, compounds of elements of Group 4/14 of the periodic table, etc. Difficulties, complex molding methods, etc., to achieve the effects of good processing performance, mild conditions, and fast polymerization speed

Active Publication Date: 2016-10-26
理工清科(北京)科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the difficulty in processing and molding MOFs materials, the current shaping methods generally have complicated operations and harsh conditions, and the obtained materials lack uniformity on the molecular scale and adhere to the substrate. A method for preparing inorganic-organic hybrid membranes, which is a simple and fast method for processing MOF membranes, and synthesized self-supporting MOFs hybrid membranes of different polymer systems, wherein MOFs particles are bonded to the polymer system And uniformly dispersed therein, the method is simple and fast, the raw material costs are low, and it has industrialization advantages

Method used

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  • A kind of method for preparing metal organic framework material thin film
  • A kind of method for preparing metal organic framework material thin film
  • A kind of method for preparing metal organic framework material thin film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] (1) UiO-66-NH 2 preparation of

[0044] 268mg (1.5mmol) of ZrCl 4 (predissolved in 12mL of N,N-dimethylformamide (DMF) and hydrochloric acid in a mixed solvent with a volume ratio of 5:1) and 250mg (1.08mmol) of 2-aminoterephthalic acid (predissolved in 20mL of DMF ) mixed evenly, reacted at 80°C for 12h, centrifuged, washed with excess DMF to obtain powder 1, powder 1 was soaked in ethanol for 3 days (new solvent was changed every day), centrifuged to obtain powder 2, powder 2 was vacuum Dry at 150°C for 12 hours under ambient conditions to obtain a yellow powdery solid. Obtain its diffraction spectrum by X-ray powder diffractometer, such as figure 1 , and the UiO-66-NH 2 The diffraction pattern matches well, indicating that the pure phase UiO-66-NH 2 .

[0045] (2)PSM UiO-66-NH 2 Preparation of (UiO-66-NH 2 post-synthetic modification of

[0046] 57.2 mg of UiO-66-NH 2 Disperse in 2mL of dichloromethane, add 77mg of methacrylic anhydride, react at room tempe...

Embodiment 2

[0050] (1)UiO-66-NH 2 preparation of

[0051] Prepare UiO-66-NH according to the method of Example 1 step (1) 2 . The difference is: the immersion time in ethanol is 4 days.

[0052] (2)PSM UiO-66-NH 2 Preparation of (UiO-66-NH 2 post-synthetic modification of

[0053] According to the method of embodiment 1 step (2) to UiO-66-NH 2 Perform post-synthetic modifications.

[0054] (3)PSM UiO-66-NH 2 Preparation of PSP-2 membrane of BMA

[0055] 60mg of PSM UiO-66-NH 2 Disperse in 40mg of butyl methacrylate (BMA) monomer, ultrasonic 30min, then add 6mg of photoinitiator phenyl bis (2,4,6-trimethylbenzoyl) phosphine oxide, ultrasonic 2min, the The obtained mixture was added dropwise into a polytetrafluoroethylene mold, irradiated with ultraviolet light for 30 min, and peeled off with tweezers to obtain a metal-organic framework material film with a MOFs loading of 60%, which was designated as a PSP-2 film. When irradiating, the distance between the ultraviolet light and ...

Embodiment 3

[0057] (1)UiO-66-NH 2 preparation of

[0058] Prepare UiO-66-NH according to the method of Example 1 step (1) 2 . The difference is: the immersion time in ethanol is 2 days.

[0059] (2)PSM UiO-66-NH 2 Preparation of (UiO-66-NH 2 post-synthetic modification of

[0060] According to the method of embodiment 1 step (2) to UiO-66-NH 2 Perform post-synthetic modifications.

[0061] (3)PSM UiO-66-NH 2 Preparation of PSP-3 membrane with MMA

[0062] 20mg of PSM UiO-66-NH 2 Disperse in 180 mg of methyl methacrylate (MMA) monomer, ultrasonic 15 min, then add 12 mg of photoinitiator phenyl bis (2,4,6-trimethylbenzoyl) phosphine oxide, ultrasonic 2 min, the The obtained mixture was added dropwise into a polytetrafluoroethylene mold, irradiated with ultraviolet light for 15 minutes, and peeled off with tweezers to obtain a metal-organic framework material film with a MOFs loading of 10%, which was designated as a PSP-3 film. When irradiating, the distance between the ultraviolet...

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Abstract

The invention discloses a method for preparing a metal-organic framework material film, and belongs to the technical field of preparation of inorganic-organic hybrid films. The method comprises the following specific steps: enabling a ZrC14 solution to react with a 2-aminaterephthalic acid solution to prepare UiO-66-NH2; adding methacrylic anhydride to obtain modified UiO-66-NH2; adding modified UiO-66-NH2 in an acrylate organic monomer, adding a photoinitiator, and irradiating under UV light to obtain the metal-organic framework material film. The method is a simple and fast MOF film processing method, self-supported MOFs hybrid films of different polymer systems are synthetized, MOFs particles and the polymer systems are bonded, and the MOF particles are dispersed uniformly in the polymer systems. The method is simple, fast, and low in raw material cost, and has industrialized advantages.

Description

technical field [0001] The invention relates to a method for preparing a metal-organic framework material film, in particular to a method for using ultraviolet light to initiate the polymerization of a metal-organic framework material and an organic monomer to prepare a metal-organic framework material hybrid film, which belongs to inorganic-organic hybridization Membrane preparation technical field. Background technique [0002] Metal-organic frameworks (MOFs), as a new type of porous polymer material, are composed of metal ions or metal clusters connected by organic ligands to form a one-dimensional, two-dimensional or three-dimensional network structure, so both inorganic and organic materials The advantages. Due to their high porosity, orderly open channels, structural diversity and rich functional groups, metal-organic frameworks play an important role in the fields of gas storage and separation, catalysis, membrane materials, and sensing. From a macroscopic point of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/14C08F220/18C08F230/04C08F2/48C08J5/18C07F7/00
Inventor 王博张媛媛冯霄
Owner 理工清科(北京)科技有限公司
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