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Coordination polymer material with multistage pore passage structure and preparation method thereof

A technology of coordination polymer and pore structure, which is applied in the direction of copper organic compounds, silver organic compounds, gold organic compounds, etc., can solve the problems of cost increase and achieve low cost, good application prospects, and large specific surface effect

Inactive Publication Date: 2011-08-24
SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, neither the template agent nor the pore aid required in the preparation process is a component of the target material, resulting in an increase in cost, and needs to be removed during the preparation process.

Method used

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  • Coordination polymer material with multistage pore passage structure and preparation method thereof
  • Coordination polymer material with multistage pore passage structure and preparation method thereof
  • Coordination polymer material with multistage pore passage structure and preparation method thereof

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preparation example Construction

[0024] A method for preparing a coordination polymer material with a multi-level pore structure, comprising the following steps:

[0025] 1) Dissolve the inorganic salt containing metal ions and the organic ligand in the solvent respectively, and then mix together to form a mixed solution, or directly dissolve the inorganic salt containing metal ions and the organic ligand together in the solvent to form a mixed solution, and stir evenly , wherein the ratio of the amount of the metal ion to the amount of the organic ligand is 0.2-5, wherein in order to obtain a mixed solution, it can be heated to aid dissolution or / and utilize ultrasonic waves to aid dissolution, and the heating temperature is not high in principle at the boiling point of the solvent;

[0026] 2) Put the mixed solution in the reaction kettle and let it stand at room temperature -180°C until the coordination polymer gel is obtained;

[0027] 3) Drying the coordination polymer gel to obtain a coordination polym...

Embodiment 1

[0057] 1) Dissolve 0.0016mol of chromium nitrate nonahydrate in 2ml of ethanol as reaction component A, weigh 0.0016mol of 1,3,5-benzenetricarboxylic acid and dissolve in 2ml of ethanol as reaction component B, Reaction component A and reaction component B are mixed together to form a mixed solution, stirred evenly, and placed in a 15ml reaction kettle;

[0058] 2) Put the mixed solution in an oven at 80°C and let it stand until the coordination polymer gel is obtained;

[0059] 3) Continue aging the coordination polymer gel in an oven at 80°C for 2 days;

[0060] 4) Wrap the coordination polymer gel with filter paper, put it into a Soxhlet extractor, heat and reflux with 200ml ethanol for Soxhlet extraction, and the extraction time is 12 hours;

[0061] 5) Put the coordination polymer gel wrapped in filter paper into a supercritical kettle and dry it with supercritical carbon dioxide. The drying time is 1 day to obtain a coordination polymer material with a multi-level pore ...

Embodiment 2

[0064] 1) Dissolve 0.0018mol of chromium nitrate nonahydrate and 0.0012mol of 1,3,5-benzenetricarboxylic acid in 3 ml of ethanol to form a mixed solution, stir well, and place in a 15ml reaction kettle;

[0065] 2) Put the mixed solution in an oven or drying oven at 80°C and let it stand until the coordination polymer gel is obtained;

[0066] 3) Continue aging the coordination polymer gel in an oven at 80°C for 2 days;

[0067] 4) Wrap the coordination polymer gel with filter paper, put it into a Soxhlet extractor, heat and reflux with 200ml ethanol for Soxhlet extraction, and the extraction time is 12 hours;

[0068] 5) After the extraction, put the coordination polymer gel wrapped in filter paper into a supercritical kettle for supercritical carbon dioxide drying. The drying time is 1 day to obtain a coordination polymer material with a multi-level pore structure.

[0069] image 3 with Figure 4 The adsorption-desorption isotherm and pore size distribution diagram of ni...

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Abstract

The invention provides a coordination polymer material with a multistage pore passage structure and a preparation method thereof. The coordination polymer material with a multistage pore passage structure is internally provided with the multistage pore passage structure, the multistage pore passage structure is a microporous and / or mesoporous and / or macroporous multistage pore passage structure which is formed by the self assembly between the metal ion and the organic ligand, the apertures of the micropores are less than or equal to 2nm, the apertures of the mesopores are from 2nm to 50nm, and the apertures of the macropores are more than 50nm. The coordination polymer material with a multistage pore passage structure is large in specific surface, the large-size organic ligand does not need to be synthesized, and the coordination polymer material with larger porous sizes can be obtained without the template agent and the pore assisting agent, so that the invention is simple in preparation method, and low in cost.

Description

technical field [0001] The invention relates to a coordination polymer material with a multi-level pore structure and a preparation method thereof. Background technique [0002] Porous coordination polymers or metal-organic hybrid materials are a kind of organic-inorganic hybrid materials synthesized by metal ions and organic ligands. Porous coordination polymers have the characteristics of both inorganic materials and organic materials, such as metal coordination active sites and various functional groups. Compared with inorganic materials such as zeolite molecular sieves and porous materials such as activated carbon, porous coordination polymers have a higher specific surface area and an adjustable pore structure, and have many advantages in gas separation and storage, adsorption, catalysis and drug delivery. important application prospects. However, the pores of most known porous coordination polymers are less than 2nm. In order that the porous coordination polymers can...

Claims

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Application Information

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IPC IPC(8): C07F3/02C07F3/04C07F5/06C07F5/00C07F7/28C07F9/00C07F11/00C07F13/00C07F15/02C07F15/04C07F15/06C07F1/08C07F3/00C07F7/30C07F7/00C07F1/10C07F3/08C07F7/22C07F9/90C07F1/12C07F3/10C07F7/24C07F9/94C07F19/00
Inventor 张建勇相升林李垒韩晓蕊袁孝辰陈六平苏成勇
Owner SUN YAT SEN UNIV
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