Hierarchical pore HKUST-1 material, preparation method and appliance

A HKUST-1, multi-level pore technology, applied in the field of porous materials, achieves the effect of mild operating conditions, wide application prospects, and good crystal form

Inactive Publication Date: 2016-03-23
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, how to synthesize hierarchically porous MOFs conveniently and quickly remains a great challenge.

Method used

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  • Hierarchical pore HKUST-1 material, preparation method and appliance
  • Hierarchical pore HKUST-1 material, preparation method and appliance
  • Hierarchical pore HKUST-1 material, preparation method and appliance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Dissolve 0.461g of trimesic acid and 0.134g of benzoic acid in a mixed solution of 8ml of water, 8ml of ethanol and 8ml of DMF at room temperature, stir for 2h and mix well; then add 1.068g of Cu(NO 3 ) 2 ·3H 2 O, stirred for 2 hours and mixed evenly to obtain a mixed solution; put the obtained mixed solution into a stainless steel high-pressure reactor, set the temperature to 110°C for 12 hours, the reaction product was filtered by suction, and dried in a blast drying oven at 50°C for 5 hours ;, and then soaked with ethanol for 3 times, and the product was vacuum-dried in a vacuum oven at 150°C for 8 hours after suction filtration to obtain a hierarchically porous HKUST-1 material sample A1.

Embodiment 2

[0036] Dissolve 0.555g of trimesic acid and 0.402g of benzoic acid in a mixed solution of 8.5ml of water, 8.5ml of ethanol and 8.5ml of DMF at room temperature, stir for 3h and mix well; then add 1.068g of Cu(NO 3 ) 2 ·3H 2 O, stirred for 3 hours and mixed evenly to obtain a mixed solution; put the obtained mixed solution into a stainless steel high-pressure reactor, set the temperature to 120°C for 8 hours, the reaction product was filtered by suction, and dried in a blast drying oven at 50°C for 5 hours ;, and then washed with ethanol for 3 times, and the product was vacuum-dried in a vacuum oven at 150° C. for 10 hours after suction filtration to obtain a sample A2 of the hierarchically porous HKUST-1 material.

Embodiment 3

[0038] Dissolve 0.500g of trimesic acid and 0.134g of benzoic acid in a mixed solution of 8ml of water, 8ml of ethanol and 8ml of DMF at room temperature, stir for 2h and mix well; then add 1.068g of Cu(NO 3 ) 2 ·3H 2 O, stir for 2 hours and mix evenly to obtain a mixed solution; put the obtained mixed solution into a stainless steel high-pressure reactor, set the temperature to 100°C for 10 hours, and filter the reaction product, and dry it in a blast drying oven at 60°C for 6 hours ;, and then washed with ethanol for 4 times, the product was vacuum-dried in a vacuum oven at 150° C. for 15 hours after suction filtration to obtain a sample A3 of the hierarchically porous HKUST-1 material.

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PUM

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Abstract

The invention belongs to the field of porous materials, and discloses a hierarchical pore HKUST-1 material, a preparation method and an appliance. The method for preparing the hierarchical pore HKUST-1 material comprises steps: trimesic acids and benzoic acids are dissolved in a mixed solution of three kinds of solvents of water, ethyl alcohol and dimethyl formamide (DMF), are uniformly stirred and mixed, and then are added with Cu(NO3)2.3H2O to uniformly stir and mix, thereby obtaining a mixed solution. The mixed solution is put into a stainless steel high pressure reaction kettle, has a hydro-thermal synthesis reaction in 100-120 DEG C, and reaction products are separated, washed and dried to obtain the hierarchical pore HKUST-1 material. The hierarchical pore HKUST-1 material uses benzoic acids as structure-directing agents, does not need other auxiliary reagents, has rich microporous, mesoporous and macroporous, and has excellent application prospect in bulky molecular catalysis, adsorption and separation and the like.

Description

technical field [0001] The invention belongs to the field of porous materials, and in particular relates to a multi-level porous HKUST-1 material and its preparation method and application. Background technique [0002] HKUST-1 (Cu-BTC or MOF-199) material is a typical metal-organic framework material and has been extensively studied. Metal-organic frameworks (MOFs) are crystalline materials with a periodic network structure formed by self-assembly of inorganic metal ions and organic ligands. It has high specific surface area, designable structure and function, and adjustable pore size. And other characteristics, it shows great application potential in adsorption, separation, catalysis and hydrogen storage. However, most of the currently reported MOFs materials are microporous (<2nm). On the one hand, too small pores prevent macromolecules such as adsorbates and reactants from entering the pores, and on the other hand, they lead to large mass transfer resistance, which i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G83/00
CPCC08G83/008
Inventor 奚红霞李彦彦柳泽伟段崇雄李金清
Owner SOUTH CHINA UNIV OF TECH
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