Chiral MOF (Metal-Organic Framework) composite material catalyst as well as preparation method and application thereof

A composite material and catalyst technology, applied in the field of metal organic framework nanomaterials and chiral sensing and detection, and nanomaterials, to achieve the effects of easy operation, simple operation and simple process

Inactive Publication Date: 2017-12-08
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This pair of unresolved enantiomers was put on the market

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Example 1 Preparation method of a chiral MOF composite catalyst

[0032] Chiral ligand H 2 After blending the alkaline aqueous solution of L with the aqueous solution of copper acetate-graphene oxide-surfactant, stand at room temperature for 2 min, centrifuge, wash with water three times, and dry to obtain; the yield is 70%;

[0033] The chiral ligand H 2 The alkaline aqueous solution of L is the addition of 0.185g ligand H 2 L, add 10mL, the mass fraction is 0.20% LiOH aqueous solution, dissolves and prepares;

[0034] The aqueous solution of described copper acetate-graphene oxide-surfactant is 0.15 g CuAc 2 ·H 2 O, 9 mL of water, 0.2 mL of polyethylene glycol with a molecular weight of 6000, and 5 mg of graphene oxide were prepared by ultrasonication for 5 min.

Embodiment 2

[0035] Example 2 Preparation method of a chiral MOF composite catalyst

[0036] Chiral ligand H 2 After blending the alkaline aqueous solution of L with the aqueous solution of copper acetate-graphene oxide-surfactant, stand at room temperature for 10 min, centrifuge, wash with water three times, and dry to obtain; the yield is 75%;

[0037] The chiral ligand H 2 The alkaline aqueous solution of L is the addition of 0.205g ligand H 2 L, add 10mL, mass fraction is 0.30% LiOH aqueous solution, dissolves and prepares;

[0038] The aqueous solution of described copper acetate-graphene oxide-surfactant is 0.25 g CuAc 2 ·H 2O, 11 mL of water, 0.3 mL of polyethylene glycol with a molecular weight of 6000, and 7 mg of graphene oxide were prepared by ultrasonication for 10 min.

Embodiment 3

[0039] Example 3 Preparation method of a chiral MOF composite catalyst

[0040] Chiral ligand H 2 After blending the alkaline aqueous solution of L with the aqueous solution of copper acetate-graphene oxide-surfactant, stand at room temperature for 6 min, centrifuge, wash with water three times, and dry to obtain; the yield is 73%;

[0041] The chiral ligand H 2 The alkaline aqueous solution of L is the addition of 0.195 g ligand H 2 L, add 10mL, the mass fraction is 0.25% LiOH aqueous solution, dissolves and prepares;

[0042] The aqueous solution of described copper acetate-graphene oxide-surfactant is 0.20 g CuAc 2 ·H 2 O, 10 mL of water, 0.25 mL of polyethylene glycol with a molecular weight of 6000, and 6 mg of graphene oxide were prepared by ultrasonication for 7 min.

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PUM

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Abstract

The invention discloses a chiral MOF (Metal-Organic Framework) composite material catalyst as well as a preparation method and application thereof to detection of a chiral enantiomer based on the composite material, and belongs to the technical fields of nano composite materials, MOF materials and chiral sensory detection. The preparation method comprises the following main steps of blending an alkaline aqueous solution of a chiral ligand with an aqueous solution of copper acetate-graphene oxide-surfactant, standing at a room temperature, centrifugally separating, washing with water, and drying, so that the chiral MOF composite material catalyst is prepared. A chiral sensor constructed by adopting the composite material is used for detecting the contents of D-(+)-tryptophan and L-(-)-tryptophan enantiomers, and the method is simple, and is easy to operate and obvious in chiral detection effect.

Description

technical field [0001] The invention relates to a chiral MOF composite material catalyst and its preparation method and application, and belongs to the technical field of nanometer materials, metal organic framework nanomaterials and chiral sensing and detection. Background technique [0002] Chirality is one of the essential properties of nature. A pair of enantiomers with chirality have identical chemical properties and physical properties except for the opposite direction of optical rotation, but the biological activities of the enantiomers are completely different. For chiral drugs, one of the enantiomers may be effective, while the other may be ineffective or even harmful. In the thalidomide event in the history of medicine, more than 12,000 deformed babies were born. The reason is that there are two configurations of R and S enantiomers in the thalidomide molecule, and the R configuration of thalidomide Amines have nerve sedative effects, while S-configuration molecul...

Claims

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Application Information

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IPC IPC(8): B01J31/16B01J37/03G01N27/30
CPCB01J31/1691B01J35/0033B01J37/03G01N27/30
Inventor 匡轩孙旭魏琴张勇吴丹
Owner UNIV OF JINAN
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