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Porous copper organic framework material for CO2 adsorption and separation and preparation method of porous copper organic framework material

A metal-organic framework, porous copper technology, applied in separation methods, adsorption, organic chemistry, etc., can solve problems such as high cost and complicated steps, and achieve the effects of good storage performance, enhanced adsorption capacity, and high thermal stability.

Inactive Publication Date: 2013-12-11
JILIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method requires high pressure conditions to achieve the purpose of separation, the steps are complicated and the cost is high

Method used

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  • Porous copper organic framework material for CO2 adsorption and separation and preparation method of porous copper organic framework material
  • Porous copper organic framework material for CO2 adsorption and separation and preparation method of porous copper organic framework material
  • Porous copper organic framework material for CO2 adsorption and separation and preparation method of porous copper organic framework material

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Experimental program
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Effect test

Embodiment 1

[0023] will be 4.0×10 -4 mol copper nitrate hexahydrate and 7.0×10 -5 mol organic ligand TDPAH is dissolved in 2.1×10 -2 mol N,N'-dimethylacetamide, 2.8×10 -2 mol dimethyl sulfoxide and 5.5×10 -2 In a mixed solvent composed of mol water, react at 100°C for 72 hours to obtain a crude porous copper metal-organic framework material; wash the crude porous copper metal-organic framework material with methanol and then dry it at 80°C to obtain a blue octahedral crystal—— The yield of the purified porous copper metal-organic framework was 89% (calculated based on the amount of organic ligand TDPAH).

[0024] The unit cell parameters of porous copper MOFs are 28.1527, 28.1527, 41.0701, 90, 90, 90. Activate the dried and purified porous copper metal organic framework, soak in methanol for 2 days, filter and vacuumize for 10 hours with an ordinary oil pump, and the vacuum degree is less than 10 -3 mmHg, remove the end group H coordinated with the copper ion 2 O molecules, so that ...

Embodiment 2

[0031] will be 2.8×10 -5 mol copper nitrate hexahydrate and 7.0×10 -5 mol organic ligand (TDPAH) dissolved in 1.6×10 -2 mol N,N'-dimethylacetamide, 1.9×10 -2 mol DMSO and 3.5×10 -2 In a mixed solvent composed of mol water, react at 100°C for 72 hours to obtain a crude porous copper metal-organic framework material; wash the crude porous copper metal-organic framework material with methanol and then dry it at 80°C to obtain a blue octahedral crystal—— Purified porous copper metal-organic framework with a yield of 12% (calculated based on the organic ligand TDPAH). Activate the dried porous copper metal organic framework, soak in methanol for 2 days, filter and vacuumize for 10 hours with an ordinary oil pump, and the vacuum degree is less than 10 -3 mmHg, remove the end group H coordinated with the copper ion 2 O molecules, so that it becomes an active metal center, and a porous copper metal organic framework material is obtained.

Embodiment 3

[0033] will be 7.0×10 -4 mol copper nitrate hexahydrate and 7.0×10 -5 mol organic ligand (TDPAH) at 6.0×10 -2 mol N,N'-dimethylacetamide, 4.5×10 -2 mol dimethyl sulfoxide and 10.5×10 -2 In a mixed solvent composed of mol water, react at 100°C for 72 hours to obtain a crude porous copper metal-organic framework material; wash the crude porous copper metal-organic framework material with methanol and then dry it at 80°C to obtain a blue octahedral crystal—— Purified porous copper metal-organic framework material with a yield of 83% (calculated based on the organic ligand TDPAH). Activate the dried porous copper metal organic framework, soak in methanol for 2 days, filter and vacuumize for 10 hours with an ordinary oil pump, and the vacuum degree is less than 10 -3 mmHg, remove the end group H coordinated with the copper ion 2 O molecules, so that it becomes an active metal center, and a porous copper metal organic framework material is obtained.

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Abstract

The invention relates to a novel porous metal organic framework material for CO2 adsorption and separation and a preparation method of the porous metal organic framework material, and belongs to the cross field of inorganic chemistry, organic chemistry and material chemistry. The method comprises the steps of taking 2,5,8-tri-(3,5-dicarboxyl aniline)-s-heptazine as a ligand to perform solvothermal reaction with cupric nitrate or copper perchlorate in a mixed solvent formed by an organic solvent and water, washing, drying, and obtaining the novel porous metal organic framework material. The porous metal organic framework material prepared by the method has a regular crystal structure, uniform pore size distribution, excellent CO2 selective adsorption ability, and an important significance in the technical field of CO2 storage and separation.

Description

technical field [0001] The invention belongs to the technical field of inorganic-organic hybrid materials, and in particular relates to a porous copper metal-organic framework material and its preparation method and application. Background technique [0002] The main energy source of modern society is still fossil fuels, the energy generated by the combustion of fossil fuels accounts for 85% of the total energy demand, but the combustion of fossil fuels produces a large amount of CO 2 resulting in the greenhouse effect. Over the past half century, atmospheric CO 2 Concentration from 3.10×10 -4 mol / L increased to 3.80×10 -4 mol / L, has a great impact on the global climate and ecological balance, leading to serious environmental and ecological problems, which will threaten the survival of human beings. At the same time, CO 2 As an important C1 resource, it has important applications in industrial synthesis. Selective adsorption and storage of CO 2 To prevent the deterior...

Claims

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Application Information

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IPC IPC(8): C07D487/16B01J20/22B01D53/02
CPCY02C10/08Y02C20/40Y02P20/151
Inventor 施展刘康韩旭李柏延冯守华
Owner JILIN UNIV
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