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Preparation method and application of ternary nano composite material based on MOF

A nanocomposite material and nanocrystal technology, applied in the fields of catalysis technology, nanomaterials, and metal organic framework materials, can solve problems such as distortion and resistance, and achieve the effects of easy operation, long preparation period and low cost

Inactive Publication Date: 2018-01-16
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For example, as a non-barbiturate central depressant of ketamine, its S-configuration has anesthetic and analgesic effects, while the R-configuration has an excitatory central nervous system leading to mental symptoms; although the two enantiomers of thalidomide have Same sedative effect, but S-formation causes teratosis

Method used

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  • Preparation method and application of ternary nano composite material based on MOF
  • Preparation method and application of ternary nano composite material based on MOF
  • Preparation method and application of ternary nano composite material based on MOF

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Embodiment 1. A kind of preparation method of MOF-based ternary nanocomposite material

[0043] (1) Preparation of g-C 3 N 4 @MOF nanocrystals

[0044] 0.34 g AgClO 4 and 0.068 g graphitic carbon nitride g-C 3 N 4 dissolved in 1 mL of water to give g-C 3 N 4 @Ag(I) aqueous solution; 0.45 g ligand L was dissolved in 1 mL methanol to obtain a methanol solution of ligand L; g-C 3 N 4 The aqueous solution of @Ag(I) and the methanol solution of ligand L were shaken and blended, left standing for 2 h, centrifuged and washed with methanol for 3 times to obtain g-C 3 N 4 @MOF nanocrystals;

[0045] (2) Preparation of g-C 3 N 4 @MOF@Ag Nanocomposite

[0046] The prepared g-C 3 N 4 @ MOF nanocrystals, add 4 mL of KBr ethanol solution with a mass fraction of 5%, mix well, let stand at room temperature for 24 h, centrifuge and wash with ethanol three times, and dry at 70°C to obtain g-C 3 N 4 @MOF@Ag nanocomposites, that is, MOF-based ternary nanocomposites.

Embodiment 2

[0047] Example 2 A method for preparing a MOF-based ternary nanocomposite

[0048] (1) Preparation of g-C 3 N 4 @MOF nanocrystals

[0049] 0.45 g AgClO 4 and 0.090 g graphitic carbon nitride g-C 3 N 4 dissolved in 1.5 mL of water to give g-C 3 N 4 @Ag(I) aqueous solution; 0.45 g ligand L was dissolved in 2 mL methanol to obtain a methanol solution of ligand L; g-C 3 N 4 The aqueous solution of @Ag(I) and the methanol solution of ligand L were shaken and blended, left standing for 3 h, centrifuged and washed with methanol for 3 times to obtain g-C 3 N 4 @MOF nanocrystals;

[0050] (2) Preparation of g-C 3 N 4 @MOF@Ag Nanocomposite

[0051] The prepared g-C 3 N 4 @ MOF nanocrystals, add 6 mL of KBr ethanol solution with a mass fraction of 5%, mix well, let stand at room temperature for 24 h, centrifuge and wash with ethanol three times, and dry at 70°C to obtain g-C 3 N 4 @MOF@Ag nanocomposites, that is, MOF-based ternary nanocomposites.

Embodiment 3

[0053] 1. A method for preparing a ternary nanocomposite based on MOF, the steps are as follows:

[0054] (1) Preparation of g-C 3 N 4 @MOF nanocrystals

[0055] 0.40 g AgClO 4 and 0.075 g graphitic carbon nitride g-C 3 N 4 dissolved in 1.2 mL of water to give g-C 3 N 4 @Ag(I) aqueous solution; 0.45 g ligand L was dissolved in 1.5 mL methanol to obtain a methanol solution of ligand L; g-C 3 N 4 The aqueous solution of @Ag(I) and the methanol solution of ligand L were shaken and blended, left standing for 2.5 h, centrifuged and washed with methanol three times to obtain g-C 3 N 4 @MOF nanocrystals;

[0056] (2) Preparation of g-C 3 N 4 @MOF@Ag Nanocomposite

[0057] The prepared g-C 3 N 4 @ MOF nanocrystals, add 5 mL of KBr ethanol solution with a mass fraction of 5%, mix well, let stand at room temperature for 24 h, centrifuge and wash with ethanol three times, and dry at 70°C to obtain g-C 3 N 4 @MOF@Ag nanocomposites, that is, MOF-based ternary nanocomposite...

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Abstract

The invention discloses a preparation method of a ternary nano composite material based on MOF and an application of the composite material for detecting chiral drug enantiomers, and belongs to the technical fields of nanomaterials, metal organic frameworks, analytical chemistry and chiral sensing detection. The preparation method comprises the main steps of firstly preparing graphite-phase C3N4 supported metal organic framework [(AgL)ClO4]n nano crystals, continuing to add potassium bromide, and carrying out in situ reduction to prepare the ternary nano composite material g-C3N4@MOF@Ag basedon MOF. The chiral drug enantiomers are sensitively detected by a sensor constructed by the composite material.

Description

technical field [0001] The invention relates to a method for preparing a MOF-based ternary nanocomposite material and the application of the composite material for electrochemical sensing and detection of penicillamine enantiomers, and belongs to the technical fields of nanomaterials, catalytic technology and metal organic framework materials. Background technique [0002] Metal-organic frameworks (MOFs) are self-assembled by metal ions or metal ion clusters and multi-dentate organic ligands through the driving force of coordination bonds, which have regular channels and pore sizes, regular space topology and periodic network structure. crystal material. Compared with other traditional porous materials, MOFs materials not only have the characteristics of ultra-high specific surface area ratio, porosity, and good thermal stability, but also have uniform pore structure, open and periodically unsaturated metal sites in the pore, and inner pores. And surface functional modifica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/30G01N27/48
Inventor 王志玲刘志莲郑鲁沂崔玉杨小凤
Owner UNIV OF JINAN
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