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A method of synthesizing layered hierarchical porous hkust-1 material

A HKUST-1, multi-level pore technology, applied in chemical instruments and methods, preparation of organic compounds, organic chemistry, etc., to achieve good crystal form, reduce reaction diffusion resistance, and increase reaction rate

Active Publication Date: 2020-05-22
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although sheet-layer hierarchically porous MOFs have such excellent properties, most of the current literature reports are sheet analysis sieves [Duan Qianqian, Zhu Zhihong, Chen Fei, et al. Synthesis of MFI sheets using tetraammonium-based Bola-type surfactants Molecular sieves [J]. Acta Synthetic Crystallographica, 2014, 43(003): 576-581.], but there are few literature reports on sheet-layer hierarchical porous MOFs

Method used

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  • A method of synthesizing layered hierarchical porous hkust-1 material
  • A method of synthesizing layered hierarchical porous hkust-1 material
  • A method of synthesizing layered hierarchical porous hkust-1 material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] 0.525g of trimesic acid was dissolved in 15ml of ethanol and stirred for 40min until completely dissolved to obtain solution A; 1.093g of Cu(NO) 3 ·3H 2 O was dissolved in 15ml of deionized water and stirred for 20 minutes to obtain solution B; mixed and stirred for 20 minutes with solution A and solution B, then added 0.4346 g of template agent tetradecyl dimethyl tertiary amine and stirred for 30 minutes, then put it into the reaction kettle for reaction at 110 °C After 10 hours, filter with suction, wash with ethanol three times at room temperature for 12 hours each time, and dry in a vacuum oven at 120°C for 10 hours to obtain a layered hierarchical porous HKUST-1 material, which is designated as sample A1.

Embodiment 2

[0040] 0.735g of trimesic acid was dissolved in 17ml of ethanol and stirred for 50min until completely dissolved to obtain solution A; 1.093g of Cu(NO) 3 ·3H 2 O was dissolved in 17ml of deionized water and stirred for 25 minutes to obtain solution B; mixed and stirred for 25 minutes with solution A and solution B, then added 0.6519g of template agent tetradecyl dimethyl tertiary amine and stirred for 45 minutes, then put it into the reaction kettle for reaction at 120°C After 11 hours, filter with suction, wash with ethanol three times at room temperature, each washing time is 13 hours, and dry in a vacuum oven at 130°C for 12 hours to obtain a layered hierarchical porous HKUST-1 material, which is designated as sample A2.

Embodiment 3

[0042] 0.840g of trimesic acid was dissolved in 20ml of ethanol and stirred for 60min until completely dissolved to obtain solution A; 1.093g of Cu(NO) 3 ·3H 2 Dissolve O in 20ml of deionized water and stir for 30min to obtain solution B; mix solution A and solution B for 30min, then add 0.8692g of templating agent tetradecyldimethyl tertiary amine and stir for 60min, put it in a reaction kettle at 150°C for reaction After 12 hours, filter with suction; wash with ethanol for 4 times at room temperature, each washing time is 15 hours, and dry in a vacuum oven at 150°C for 15 hours to obtain a layered hierarchical porous HKUST-1 material, which is designated as sample A3.

[0043] Taking Example 1 as a representative, the layered hierarchical porous HKUST-1 material prepared in Example 1 was analyzed, and the analysis results of the layered hierarchical porous HKUST-1 material obtained in other examples were basically the same as those in Example 1, but not the same. one provid...

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Abstract

The invention discloses a method for compounding a layered hierarchical pore HKUST-1 material. The method includes steps of dissolving trimesic acid in ethanol, and mixing to obtain solution A; adding Cu (NO)3-3H2O in the water, and mixing to obtain solution B; mixing the solution A with the solution B, and then adding template dimethyl tetradecyl amine (C16H35N), and continuing to mix; filling mixed fluid in a stainless steel high-pressure reaction kettle to perform hydro-thermal synthesis reaction; after ethanol rinsing, performing suction filtration and vacuum drying to obtain the layered hierarchical pore HKUST-1 material. The template dimethyl tetradecyl amine is added as the structure guiding agent to successfully compound the layered hierarchical pore HKUST-1 material; the compounded layered hierarchical pore HKUST-1 material has layering structure as well as hierarchical pore structure, and the structure can reduce the mass transfer resistance during the mass transfer process, improve the spreading rate, and has good application prospect in terms of macromolecular catalyst, absorption, separation and others.

Description

technical field [0001] The invention belongs to the field of preparation of layered hierarchical porous metal organic framework, in particular to a method for synthesizing layered hierarchical porous HKUST-1 material. Background technique [0002] Metal-organic frameworks (MOFs) are a new class of crystalline materials with high surface area, high porosity, and rich and unique topological structures, showing great application potential in the fields of adsorption, separation, hydrogen storage, catalysis, and sensing. However, most of the MOFs reported in the literature have only microporous structures (2nm), and only a few MOFs materials have mesoporous or macroporous materials. On the one hand, the small pore size hinders the rapid diffusion and transport of molecules, resulting in low adsorption and reaction rates; practical application. [0003] Layered hierarchical porous MOFs can not only effectively shorten the diffusion path and increase the mass transfer diffusion ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C51/41C07C63/307
CPCC07C51/418C07C63/307
Inventor 李金清奚红霞郑翔颜欣张航
Owner SOUTH CHINA UNIV OF TECH
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