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Preparation method and application of metal organic framework material

A metal-organic framework and organic phase technology, applied in separation methods, chemical instruments and methods, and other chemical processes, can solve the problem of low adsorption performance, achieve high adsorption rate, good chemical stability and thermal stability, and process simple effect

Active Publication Date: 2017-11-17
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Among them, studies have shown that under the conditions of pressure of 0-1 bar and 25 °C, UiO-66 has a good effect on CO 2 The maximum adsorption capacity is 1.314mmol / g, UiO-66-(COOH) 2 to CO 2 The maximum adsorption capacity is 1.821mmol / g, while UiO-66-(OCH 2 CH 3 ) 2 to CO 2 The maximum adsorption capacity of these materials is only 0.646mmol / g, and these materials are effective for CO 2 low adsorption capacity

Method used

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  • Preparation method and application of metal organic framework material
  • Preparation method and application of metal organic framework material
  • Preparation method and application of metal organic framework material

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Experimental program
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Effect test

Embodiment 1

[0023] Embodiment 1: A kind of preparation method of metal organic framework material, concrete steps are:

[0024] (1) At a temperature of 40°C, dissolve zirconium tetrachloride, hafnium tetrachloride, and 2-aminoterephthalic acid in the mixed organic phase to obtain a mixed solution A, wherein the mixed organic phase is N,N- An organic mixture of dimethylformamide and acetic acid, the volume ratio of N,N-dimethylformamide and acetic acid in the mixed organic phase is 1:1, zirconium tetrachloride, hafnium tetrachloride, 2-amino-tere-phenylene The molar ratio of formic acid is 1:1:3, and the solid-to-liquid ratio g:mL of zirconium tetrachloride and mixed organic phase is 1:1;

[0025] (2) Under the condition of stirring at 100°C, react the mixed solution A obtained in step (1) for 12 hours, filter, wash the solid with N,N-dimethylformamide, and dry it in vacuum to obtain the metal organic framework material UiO-66 (Zr,Hf)-(NH) 2 ;

[0026] The metal-organic framework materi...

Embodiment 2

[0028] Embodiment 2: A kind of preparation method of metal organic framework material, concrete steps are:

[0029] (1) At a temperature of 35°C, dissolve zirconium tetrachloride, hafnium tetrachloride, and 2-aminoterephthalic acid in the mixed organic phase to obtain a mixed solution A, wherein the mixed organic phase is N,N- An organic mixture of dimethylformamide and acetic acid, the volume ratio of N,N-dimethylformamide and acetic acid in the mixed organic phase is 1:2, zirconium tetrachloride, hafnium tetrachloride, 2-amino-tere-phenylene The molar ratio of formic acid is 1:2:6, and the solid-to-liquid ratio g:mL of zirconium tetrachloride and mixed organic phase is 2:1;

[0030] (2) Under the condition of stirring at a temperature of 110°C, the mixed solution A obtained in step (1) was reacted for 18 hours, filtered, washed with N,N-dimethylformamide, and dried in vacuum to obtain the metal organic framework material UiO-66 (Zr,Hf)-(NH) 2 ;

[0031] The metal-organic ...

Embodiment 3

[0032] Embodiment 3: A kind of preparation method of metal organic framework material, concrete steps are:

[0033] (1) Dissolve zirconium tetrachloride, hafnium tetrachloride and 2-aminoterephthalic acid in the mixed organic phase at a temperature of 30°C to obtain a mixed solution A, wherein the mixed organic phase is N,N- An organic mixture of dimethylformamide and acetic acid, the volume ratio of N,N-dimethylformamide and acetic acid in the mixed organic phase is 1:3, zirconium tetrachloride, hafnium tetrachloride, 2-amino-tere-phenylene The molar ratio of formic acid is 1:3:9, and the solid-to-liquid ratio g:mL of zirconium tetrachloride and mixed organic phase is 3:1;

[0034] (2) Under the condition of stirring at 120°C, react the mixed solution A obtained in step (1) for 24 hours, filter, wash the solid with N,N-dimethylformamide, and dry it in vacuum to obtain the metal organic framework material UiO-66 (Zr,Hf)-(NH) 2 ;

[0035] The metal-organic framework material...

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Abstract

The invention relates to a preparation method and application of a metal organic framework material, and belongs to the technical field of crystalline materials. Under the condition that the temperature is not higher than 40 DEG C, zirconium tetrachloride, hafnium tetrachloride and 2-amino terephthalic acid are dissolved in a mixed organic phase to obtain a mixed solution A, wherein the mixed organic phase is an organic mixture of N,N-dimethylformamide and acetic acid; at the temperature of 100-120 DEG C, the mixed solution A reacts for 12-24 h under the stirring condition, the product is filtered, washed with N,N-dimethyl formamide and subjected to vacuum drying, and then the metal organic framework material is obtained. The metal organic framework material prepared through the method can be used for adsorbing carbon dioxide (CO2) and has the advantages of being high in adsorption rate and capable of being repeatedly used.

Description

technical field [0001] The invention relates to a preparation method and application of a metal organic framework material, belonging to the technical field of crystalline materials. Background technique [0002] Humans have released CO into the atmosphere since the Industrial Revolution 2 The greenhouse gases with strong heat absorption are increasing year by year, and the greenhouse effect of the atmosphere is also enhanced, which has caused a series of serious problems such as global warming, and has attracted widespread attention from all over the world. In recent years, CO in the atmosphere of some cities in my country 2 The concentration has also seriously exceeded the standard, and has reached the level of pollution in developed countries in the 1950s and 1960s. CO 2 It is not only a major air pollutant, but also an important carbon source in industrial production. Therefore, CO 2 Complementary and storage techniques have received more and more attention. [000...

Claims

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Application Information

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IPC IPC(8): C08G83/00B01J20/22B01J20/30B01D53/02
CPCB01D53/02B01J20/22C08G83/008B01J20/30Y02C20/40Y02P20/151
Inventor 汤立红周玲玲宁平李凯包双友朱婷婷金旭张秀英
Owner KUNMING UNIV OF SCI & TECH
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