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Preparation of foam metal/MOF (metal-organic framework) composite and application to ammonia adsorption

A technology of metal-organic framework and composite materials, which is applied in the field of preparation of foamed metal/metal-organic framework composite materials, can solve problems such as unsuitable gas pollutant adsorption, and achieve a good adsorption effect and good adsorption effect that is conducive to popularization and application. Effect

Inactive Publication Date: 2018-09-07
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There have been many studies on the use of MOF materials for ammonia adsorption, but MOF materials in a powder state macroscopically are not suitable for the adsorption of gaseous pollutants in the environment.

Method used

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  • Preparation of foam metal/MOF (metal-organic framework) composite and application to ammonia adsorption
  • Preparation of foam metal/MOF (metal-organic framework) composite and application to ammonia adsorption
  • Preparation of foam metal/MOF (metal-organic framework) composite and application to ammonia adsorption

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The metal foam is copper foam (specification: 100PPI, 1mm thick); the preliminary treatment of the foam metal requires sodium bicarbonate (NaHCO 3 , molecular weight is 84.01), ammonium persulfate ((NH 4 ) 2 S 2 O8, molecular weight 228.2); The organic ligand of the metal organic framework HKUST-1 prepared on the foam metal is trimesic acid (C 9 h 6 o 6 , molecular weight is 210.14), solvent is ethanol and water.

[0028] Preparation conditions and methods:

[0029] (1) Cut the foamed copper, the base is round, with an area of ​​3.14cm 2 . Soak in concentrated hydrochloric acid for 40 minutes, rinse with plenty of deionized water. Dry at a temperature of 100-120°C for use.

[0030] (2) Get 3mL 0.02mol / L basic sodium carbonate solution, 3mL 0.04mol / L ammonium persulfate solution and 24mL deionized water, and prepare foamed copper treatment solution;

[0031] (3) Put the copper foam in step (1) into the treatment solution in step (2), react at 25°C for 72 hours,...

Embodiment 2

[0036] Copper foam (specification: 100PPI, 1mm thick) is needed to prepare porous copper substrate; sodium bicarbonate (NaHCO 3 , molecular weight is 84.01), ammonium persulfate ((NH 4 ) 2 S 2 o 8 , molecular weight 228.2); The organic ligand of the metal-organic framework HKUST-1 prepared on the foam metal is trimesic acid (C 9 h 6 o 6 , molecular weight is 210.14), solvent is ethanol and water.

[0037] Preparation conditions and methods:

[0038] (1) Cut the foamed copper, the base is round, with an area of ​​3.14cm 2 . Soak in concentrated hydrochloric acid for 40 minutes, rinse with plenty of deionized water. Dry at a temperature of 100-120°C for use.

[0039] (2) Get 3mL 0.02mol / L basic sodium carbonate solution, 3mL 0.04mol / L ammonium persulfate solution and 24mL deionized water, and prepare foamed copper treatment solution;

[0040] (3) Put the foamed copper in step (1) into the treatment solution in step (2), keep it at 25° C. for 72 hours, take it out and ...

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Abstract

The invention provides preparation of a foam metal / MOF (metal-organic framework) composite and an application to ammonia adsorption, and belongs to the technical field of composites. A preparation process of the composite is mainly characterized in that foam metal is processed and serves as a support of MOFs, then the MOFs are uniformly supported by the foam metal with an in-situ crystal growth method, and finally, the foam metal / MOF composite with both macroporous structure and microporous structure is obtained. The obtained material has good adsorption and removal performance for trace ammonia in air, the preparation method of the material is simple and feasible, and the composite has potential application value in air purification and government.

Description

technical field [0001] The invention relates to the preparation of a metal foam / metal organic framework composite material and the research on the adsorption and removal performance of the material for trace amounts of ammonia in the air, belonging to the technical field of composite materials. Background technique [0002] With the progress and development of science and technology, environmental problems have become one of the serious problems affecting modern society. Ammonia, as a common alkaline gas in the atmosphere, can undergo a homogeneous neutralization reaction with acid gases such as sulfuric acid or nitric acid, and produce inorganic salt particles in the atmosphere, thereby forming heavy haze pollution. Therefore, research on ammonia pollution is receiving more and more attention. As one of the important ways to deal with pollutants, adsorption has also attracted much attention. Metal-organic frameworks (Metal-Organic Frameworks, MOFs) are composed of metal i...

Claims

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Application Information

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IPC IPC(8): B01J20/22B01J20/28B01J20/30B01D53/02
CPCB01D53/02B01D2256/10B01D2257/406B01J20/0237B01J20/226B01J20/28045
Inventor 谢亚勃吴宇奇李建荣谢林华
Owner BEIJING UNIV OF TECH
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