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MOFs material with high gas adsorbability as well as preparation method and application of MOFs material

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

Active Publication Date: 2021-02-09
GUANGDONG UNIV OF PETROCHEMICAL TECH +1
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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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  • MOFs material with high gas adsorbability as well as preparation method and application of MOFs material
  • MOFs material with high gas adsorbability as well as preparation method and application of MOFs material
  • MOFs material with high gas adsorbability as well as preparation method and application of MOFs material

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Embodiment 1

[0054]The MOFs material with high gas adsorption of this embodiment, such asfigure 1 As shown, the molecular formula of its monomer molecule is C8H18N15Zn2O9, The molecular weight is 599.15, the coordination formula is [Zn2(HATZ)(ATZ)2(PMA)0.5]·(H2O)5, HATZ is 5-aminotetrazolium, PMA is pyromellitic acid; see table 1 for crystal structure data, and table 2 for partial bond length and bond angle data; each unit cell of this MOFs materialThe volume that the solvent can pass isThe porosity is 48.7%.

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

[0056]Weigh analytically pure 5-aminotetrazolium (0.5mmol, 0.043g), analytically pure pyromellitic acid (0.25mmol, 0.064g) and analytically pure Zn (CH3COO)2·2H2O (0.5mmol, 0.110g) was placed in a 20mL reactor, 10mL of ultrapure water was added for stirring to dissolve, and then analytically pure NaOH (1.5mmol, 0.060g) was added, stirred at room temperature for 30 min...

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Abstract

The invention mainly relates to the technical field of metal organic framework materials, and particularly discloses an MOFs material with high gas adsorbability as well as a preparation method and application of the MOFs material. The MOFs material is a reaction product of a chemical formula 1, a chemical formula 2 and a zinc salt in a solvent, wherein the chemical formula 1 and the chemical formula 2 have specific structures, and the zinc salt is zinc acetate. The MOFs material prepared by using the specific ligand and metal salt has excellent gas adsorption performance. The MOFs material issimple in process, low in cost, good in repeatability and high in yield, chemical components are easy to control, and the separation selectivity on CO2 / N2 mixed gas is excellent.

Description

Technical field[0001]The present invention mainly relates to the technical field of metal-organic framework materials, and more specifically, to a MOFs material with high gas adsorption and a preparation method and application thereof.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 materials contain functional ligands and metal ions, and have the characteristics of multi-function. Designing and synthesizing new types of MOFs is one of the hotspots for inorganic chemists and materials 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 of a It is ver...

Claims

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Application Information

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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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