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Metal-organic framework based on tripyrazole ligand, preparation method and application of metal-organic framework in organic dye degradation

A technology of organic framework and organic dyes, applied in metal-organic coordination polymer materials, based on tripyrazole ligand metal-organic framework, application and preparation of organic dye degradation, can solve mutagenicity and biological carcinogenicity In order to achieve the effects of high productivity, easy implementation and stable framework

Active Publication Date: 2022-04-12
DEZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, most dyes are synthetic organic dyes containing aromatic rings, which are potentially carcinogenic and mutagenic to organisms

Method used

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  • Metal-organic framework based on tripyrazole ligand, preparation method and application of metal-organic framework in organic dye degradation
  • Metal-organic framework based on tripyrazole ligand, preparation method and application of metal-organic framework in organic dye degradation
  • Metal-organic framework based on tripyrazole ligand, preparation method and application of metal-organic framework in organic dye degradation

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Experimental program
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Effect test

Embodiment 1

[0023] The organic ligand H 3 TPA (0.1 mmol), 4,4'-bipyridine (0.3 mmol) were sonicated in 8 ml of DMF, Zn(NO 3 ) 2 ·6H 2 O (0.2 mmol) was dissolved in 1.0 ml deionized water, and the two were mixed and sealed in a glass bottle. Crystals of the metal-organic framework were obtained via thermal reaction at 120 °C for 48 hours.

Embodiment 2

[0025] The organic ligand H 3 TPA (0.1 mmol), 4,4'-bipyridine (0.8 mmol) were sonicated in 8 ml of DMF, Zn(NO 3 ) 2 ·6H 2 O (0.4 mmol) was dissolved in 2.4 ml of deionized water, and the two were mixed and sealed in a glass bottle. Crystals of the metal-organic framework were obtained via thermal reaction at 120 °C for 36 hours.

Embodiment 3

[0027] The organic ligand H 3 TPA (0.04 mmol), 4,4'-bipyridine (0.12 mmol) were ultrasonically dissolved in 4 ml of DMF, Zn(NO 3 ) 2 ·6H 2 O (0.16 mmol) was dissolved in 1.0 ml deionized water, and the two were mixed and sealed in glass bottles. Crystals of the metal-organic framework were obtained via thermal reaction at 120 °C for 36 hours.

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Abstract

The invention discloses a metal-organic framework based on a tripyrazole ligand, a preparation method and application of the metal-organic framework in organic dye degradation, and belongs to the technical field of crystalline materials. The chemical formula of the metal-organic framework is [Zn7 (OH) 2 (TPA) 4 (H2O)], and the organic ligand is 4, 4 ', 4'-tri (1H-pyrazole-4-yl) triphenylamine (H3TPA). The preparation method comprises the following steps: under a sealed condition, carrying out thermal reaction on an organic ligand H3TPA, zinc nitrate hexahydrate and 4, 4 '-dipyridyl in a mixed solution of N, N-dimethylformamide and water to obtain a crystal of the metal-organic framework. The metal-organic framework material has a relatively large specific surface area and a permanent porous structure, and the integrity of the framework structure can be kept in an aqueous solution environment with the pH value of 2-13. The material has visible light absorption performance and can be used as a catalyst for photocatalytic degradation of organic dye in a water body.

Description

technical field [0001] The invention belongs to the technical field of crystalline materials, and the technology relates to metal-organic coordination polymer materials, in particular to a metal-organic framework based on a tripyrazole ligand, a preparation method and its application in the degradation of organic dyes. Background technique [0002] Metal-organic frameworks (MOFs) are hybrid crystalline materials formed by the self-assembly of organic ligands and metal nodes, which have the characteristics of both organic and inorganic materials. At the same time, it has the characteristics of designable structure, tailorable properties, and high specific surface area. It has attracted extensive attention in the application fields of gas adsorption and separation, catalysis, sensing, and electrochemistry, and its industrial application is gradually advancing. Dye is an indispensable material in the production process of plastics, textiles, paper, leather, etc., and the result...

Claims

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Application Information

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IPC IPC(8): C08G83/00B01J31/22
CPCY02W10/37
Inventor 张秀玲张永正李婷婷胡慧耿龙龙张大帅
Owner DEZHOU UNIV
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