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Preparation method of chiral MOF (metal organic framework) film material and application thereof

A membrane material and chirality technology, which is used in the preparation of chiral MOF membrane materials, and the preparation of chiral metal-organic framework MOF crystal composites supported by foamed copper, which can solve the complex structure of chiral organic ligands, chiral electrical properties. There are few reports on the development of chemical identification technology, which achieves the effect of high sensitivity, simple synthesis process and wide detection range.

Inactive Publication Date: 2018-06-01
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In recent years, many researchers have synthesized some chiral MOFs crystal materials based on metal ions and chiral organic ligands, but the chiral organic ligands used are usually complex in structure, and there are few technical developments for their use in chiral electrochemical recognition. to report

Method used

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  • Preparation method of chiral MOF (metal organic framework) film material and application thereof
  • Preparation method of chiral MOF (metal organic framework) film material and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1. A kind of preparation method of chiral MOF membrane material

[0025] Blend 0.090 g of L-aspartic acid with 3 mL of water to prepare a blend of L-aspartic acid and water; dissolve 0.14 g of potassium persulfate in 3 mL of water to obtain an aqueous solution of potassium persulfate ; After blending the blend of L-aspartic acid and water and the aqueous solution of potassium persulfate, heat and reflux to dissolve, add 3 mL of ethanol and activated copper foam, continue to heat and reflux for 6 hours, and take out the foam copper composite material , washed with water and ethanol three times, and dried to prepare foamed copper-supported chiral metal-organic framework MOF crystal composite material, that is, chiral MOF membrane material.

[0026] The MOF crystal is a flaky nanocrystal;

[0027] The activated copper foam is immersing 0.5 cm × 0.5 cm foam copper in 9.5 mL of dilute hydrochloric acid with a mass fraction of 9% for 10 min, then ultrasonicating f...

Embodiment 2

[0028] Embodiment 2. A kind of preparation method of chiral MOF membrane material

[0029] Blend 0.110 g of L-aspartic acid with 3.5 mL of water to obtain a blend of L-aspartic acid and water; dissolve 0.16 g of potassium persulfate in 3.5 mL of water to obtain an aqueous solution of potassium persulfate ;

[0030] After blending the blend of L-aspartic acid and water and the aqueous solution of potassium persulfate, heat to reflux to dissolve, add 4 mL of ethanol and activated copper foam, continue to heat and reflux for 6 hours, take out the foam copper composite material, Washing with water and ethanol three times and drying respectively, the foamed copper-supported chiral metal-organic framework MOF crystal composite material, that is, the chiral MOF membrane material, was prepared.

[0031] The MOF crystals are flake nanocrystals.

[0032] The activated copper foam is immersing 0.5 cm × 0.5 cm foam copper in 10.5 mL of dilute hydrochloric acid with a mass fraction of 9%...

Embodiment 3

[0033] Embodiment 3. A kind of preparation method of chiral MOF membrane material

[0034] Blend 0.100 g of L-aspartic acid with 3.2 mL of water to obtain a blend of L-aspartic acid and water; dissolve 0.15 g of potassium persulfate in 3.3 mL of water to obtain an aqueous solution of potassium persulfate ; After blending the blend of L-aspartic acid and water and the aqueous solution of potassium persulfate, heat and reflux to dissolve, add 3.5 mL of ethanol and activated foamed copper, continue to heat and reflux for 6 hours, and take out the foamed copper composite , washed with water and ethanol three times, and dried to prepare foamed copper-supported chiral metal-organic framework MOF crystal composite material, that is, chiral MOF membrane material.

[0035] The MOF crystals are flake nanocrystals.

[0036] The activated copper foam is to immerse 0.5 cm × 0.5 cm foam copper in 10 mL of dilute hydrochloric acid with a mass fraction of 9% for 10 min, then sonicate for 7 m...

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Abstract

The invention discloses a preparation method of a chiral MOF (metal organic framework) film material and application thereof, particularly relates to a preparation method and application of foam copper loaded chiral MOF crystal composite material, and belongs to the technical fields of nanometer materials, metal organic compound nanometer materials, analytical chemistry and the like. The method comprises the following main steps of performing blending and heating backflow dissolution on a blending solution of L-aspartic acid and water and a water solution of potassium peroxodisulfate; continuously adding ethanol and activated foam copper; performing heating backflow for 6h; preparing the foam copper loaded chiral MOF crystal composite material, i.e., the chiral MOF film material. A chiralMOF film material sensor is built by using the composite material, and is used for detecting L-histidine enantiomer content. The preparation method is simple; the operation is easy; the chiral detection effect is obvious.

Description

technical field [0001] The invention relates to a preparation method and application of a chiral MOF membrane material, in particular to a preparation method and application of a chiral metal-organic framework MOF crystal composite material supported by foamed copper, belonging to nanomaterials, metal-organic complex nanomaterials and analytical chemistry and other technical fields. Background technique [0002] The property that a compound molecule and its mirror image cannot be completely superimposed is called chirality, and chirality is one of the essential properties of nature. Chiral metal-organic frameworks (MOFs) are periodic ordered porous crystalline materials formed by self-assembly of chiral organic bridging ligands and metal ions or metal clusters. As a new type of functional material, chiral MOFs have high specific surface area, rich topological structure, regular pore structure and modifiable pore surface, which make them have great potential in many fields s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/28G01N27/48
Inventor 董彦芳王志玲崔玉刘志莲杨小凤
Owner UNIV OF JINAN