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A kind of MOFs material with high gas adsorption and its preparation method and application

A high adsorption, MOF technology, applied in separation methods, gas treatment, chemical instruments and methods, etc., can solve the problems of poor selective adsorption performance, poor gas adsorption performance, etc., and achieve the effect of excellent adsorption performance

Active Publication Date: 2022-03-08
GUANGDONG UNIV OF PETROCHEMICAL TECH +1
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  • Claims
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Problems solved by technology

[0004] Aiming at the problems of poor gas adsorption performance and poor selective adsorption performance of MOFs materials in the prior art, the present invention provides a MOFs material with high gas adsorption and its preparation method and application. By designing specific organic ligands and metal Salt Obtains MOFs Materials with Excellent Gas Adsorption and Selective Adsorption Properties

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  • A kind of MOFs material with high gas adsorption and its preparation method and application
  • A kind of MOFs material with high gas adsorption and its preparation method and application
  • A kind of MOFs material with high gas adsorption and its preparation method and application

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Embodiment 1

[0054] A kind of MOFs material with high gas adsorption of the present embodiment, such as figure 1 As shown, the molecular formula of its monomer molecule is C 8 h 18 N 15 Zn 2 o 9 , the molecular weight is 599.15, and the coordination formula is [Zn 2 (HATZ)(ATZ) 2 (PMA) 0.5 ]·(H 2 O) 5 , HATZ is 5-aminotetrazole, and PMA is pyromellitic acid; see Table 1 for crystal structure data, and see Table 2 for some bond length and bond angle data; each unit cell unit of the MOFs material The volume through which the solvent can pass is The porosity is 48.7%.

[0055] This embodiment also provides a method for preparing a MOFs material with high gas adsorption, specifically as follows:

[0056] Weigh analytically pure 5-aminotetrazole (0.5mmol, 0.043g), analytically pure pyromellitic acid (0.25mmol, 0.064g) and analytically pure Zn (CH 3 COO) 2 2H 2 O (0.5mmol, 0.110g) was placed in a 20mL reactor, 10mL of ultrapure water was added to stir and dissolve, then analytica...

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Abstract

The invention mainly relates to the technical field of metal-organic framework materials, and specifically discloses a highly gas-adsorbing MOFs material and a preparation method and application thereof. The MOFs material is a reaction product of chemical formula 1, chemical formula 2 and zinc salt in a solvent, wherein chemical formula 1 and chemical formula 2 have a specific structure, wherein the zinc salt is zinc acetate. The MOFs material prepared by using specific ligands and metal salts in the present invention has excellent gas adsorption performance. The invention has the advantages of simple process, low cost, easy control of chemical components, good repeatability and high yield, and can separate CO 2 and N 2 The mixed gas selectivity is high.

Description

technical field [0001] The invention mainly relates to the technical field of metal-organic framework materials, and more specifically relates to a MOFs material with high gas adsorption and its preparation method and application. Background technique [0002] MOFs material is a kind of porous material, which has very good application prospects in gas adsorption and separation, wastewater treatment and hydrogen storage materials. At the same time, MOFs material contains functionalized ligands and metal ions, and has multifunctional characteristics. Designing and synthesizing new MOFs materials is one of the hot research areas of inorganic chemists and material scientists. However, most of the MOFs materials in the prior art cannot meet the requirements for the adsorption performance of different types of gases, and the selective adsorption performance for a certain gas is also poor, which limits the application of MOFs materials in gas separation. Therefore, the development ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G83/00B01J20/22C02F1/28
CPCC08G83/008B01J20/226C02F1/288B01D53/02B01J20/28061B01J20/28071B01J20/2808B01J20/28011B01D2253/204B01D2257/504Y02C20/40
Inventor 张淑华陈中杭李光照肖瑜
Owner GUANGDONG UNIV OF PETROCHEMICAL TECH
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