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Preparation method of basic copper sulfate/metal organic framework core-shell microsphere

A metal-organic framework, core-shell microsphere technology, applied in the preparation of microspheres, microcapsule preparations, etc., can solve the problems of harsh reaction conditions, limited batch production and application, cumbersome process, etc., and achieve mild reaction conditions and short cycle times. , the effect of simple process

Inactive Publication Date: 2014-04-30
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, cumbersome processes such as surface modification and layer-by-layer coating limit its mass production and application.
[0004] In summary, there are problems such as harsh reaction conditions or cumbersome processes in the current preparation methods, so the development of a mild, simple and rapid preparation method is of great significance for the development of micro-nanoparticles / metal-organic framework core-shell materials

Method used

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  • Preparation method of basic copper sulfate/metal organic framework core-shell microsphere
  • Preparation method of basic copper sulfate/metal organic framework core-shell microsphere
  • Preparation method of basic copper sulfate/metal organic framework core-shell microsphere

Examples

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Embodiment example 1

[0024] 1) Prepare 4 mL of copper sulfate solution with a concentration of 0.75 mol / L at room temperature, add 0.024 mol / L 1,3-propylenediamine solution, then let stand at room temperature for 2 h, filter and wash, and dry at 60 °C After 12 h, basic copper sulfate microspheres with core-shell structure were obtained;

[0025] 2) Disperse 0.003 mol of core-shell structure basic copper sulfate microspheres in a mixed solution of 4 mL of ethanol and water (the molar ratio of ethanol and water is 1:1), and then add 3 mL of 0.05 mol / L ethanol solution of terephthalic acid, react at room temperature for 1 h, filter and wash, and dry at 60 °C for 12 h to obtain basic copper sulfate / MOF core-shell microspheres, whose MOF shell is Cu -BDC.

Embodiment example 2

[0027] 1) Prepare 4 mL of copper sulfate solution with a concentration of 0.75 mol / L at room temperature, add 0.024 mol / L of 1,3-propylenediamine solution, then stand at room temperature for 2 h, filter and wash, and dry at 60 °C After 12 h, basic copper sulfate microspheres with core-shell structure were obtained;

[0028] 2) Disperse 0.003 mol of core-shell structure basic copper sulfate microspheres in a mixed solution of 4 mL of ethanol and water (the molar ratio of ethanol and water is 1:1), and then add 3 mL of 0.05 The ethanol solution of mol / L trimesic acid was reacted at room temperature for 1 h, filtered and washed, and dried at 60 °C for 12 h to obtain basic copper sulfate / MOF core-shell microspheres, and the MOF shell was Cu-BTC. The scanning electron microscope photograph of the product is as figure 1 , as shown in 2.

Embodiment example 3

[0030] 1) Prepare 4 mL of copper sulfate solution with a concentration of 0.75 mol / L at room temperature, add 0.024 mol / L 1,3-propylenediamine solution, then stand at room temperature for 2 h, filter and wash, and dry at 60 °C for 12 Obtain the basic copper sulfate microsphere of core-shell structure after h;

[0031] 2) Disperse 0.003 mol of core-shell structure basic copper sulfate microspheres in a mixed solution of 4 mL of ethanol and water (the molar ratio of ethanol and water is 1:1), and then add 3 mL of 0.05 mol / L ethanol solution of pyromellitic acid, react at room temperature for 1 h, filter and wash, and dry at 60 °C for 12 h to obtain basic copper sulfate / MOF core-shell microspheres, whose MOF shell is Cu -BTEC. The scanning electron microscope photograph of the product is as image 3 shown.

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Abstract

The invention discloses a preparation method of a basic copper sulfate / metal organic framework core-shell microsphere, and belongs to the technical field of advanced nano composite preparation. The preparation method of the basic copper sulfate / metal organic framework core-shell microsphere comprises the steps that a basic copper sulfate microsphere in a core-shell structure is prepared; a shell layer of the basic copper sulfate microsphere is converted into a metal organic framework material in situ; and the basic copper sulfate / metal organic framework core-shell microsphere is prepared. The preparation method has the advantages that 1) the basic copper sulfate / metal organic framework core-shell microsphere is prepared by a simple two-step method at a room temperature; 2) different metal organic framework shell layers can be prepared by adjusting the kind of added organic ligands by using the basic copper sulfate microsphere prepared by the method; and 3) the method is mild in reaction condition, simple in technology and short in period, and is suitable for industrial production.

Description

technical field [0001] The invention belongs to the technical field of preparation of advanced nanocomposite materials, and in particular relates to a preparation method of basic copper sulfate / metal organic framework core-shell microspheres. Background technique [0002] Metal-organic frameworks (MOFs) are a new type of nanoporous material, which is a new type of crystalline material with a periodic infinite network structure formed through the self-assembly of transition metal ions or metal clusters and organic ligands. It combines the advantages of both inorganic compounds and organic polymers. Metal-organic framework materials have shown their unique physical and chemical properties in many aspects such as catalysis, batteries, hydrogen storage, fluorescence, separation and adsorption, and have been widely used in these fields. [0003] In recent years, using metal-organic framework materials as the coating layer of micro-nano particles, using its super large specific s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J13/02
Inventor 王戈高鸿毅阿南栾奕张晓伟禹杰齐悦杨穆
Owner UNIV OF SCI & TECH BEIJING
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