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A copper-coordinated porous polymer, preparation method and application

A porous polymer, polymer technology, applied in organic compound/hydride/coordination complex catalysts, chemical instruments and methods, carbon monoxide, etc. Porosity, good reproducibility

Active Publication Date: 2020-07-28
YUNNAN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are few reports on the application of triazole copper coordination polymers in the photocatalytic reduction of carbon dioxide.

Method used

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  • A copper-coordinated porous polymer, preparation method and application
  • A copper-coordinated porous polymer, preparation method and application
  • A copper-coordinated porous polymer, preparation method and application

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Experimental program
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Effect test

Embodiment 1

[0033] 11.31 mg (0.1 mmol) 1,2,4-triazole-3-carboxylic acid, 12.81 mg (0.1 mmol) 5-amino-1,2,4-triazole-3-carboxylic acid, 34.1 mg ( 0.2mmol) of CuCl 2 2H 2 O was added to 10 mL of distilled water and mixed evenly; the resulting mixture was sealed and subjected to hydrothermal reaction at 150°C for 48 hours, and then cooled to room temperature at a rate of 5°C per hour to obtain dark green blocky transparent crystals, which were washed with ethanol After washing and drying naturally, the single crystal sample of the porous coordination polymer was prepared. The porous coordination polymer can be prepared by vacuum drying at 110°C.

Embodiment 2

[0035] 11.31 mg (0.1 mmol) 1,2,4-triazole-3-carboxylic acid, 12.81 mg (0.1 mmol) 5-amino-1,2,4-triazole-3-carboxylic acid, 34.1 mg ( 0.2mmol) of CuCl 2 2H 2 O was added to 10mL of distilled water and mixed evenly; the resulting mixture was sealed and subjected to hydrothermal reaction at 160°C. After 36 hours of reaction, it was cooled to room temperature at a rate of 5°C per hour to obtain dark green blocky transparent crystals. After washing and drying naturally, the single-crystal sample of the porous coordination polymer is obtained, and vacuum-dried at 110° C., the porous coordination polymer can be obtained.

Embodiment 3

[0037] 11.31 mg (0.1 mmol) 1,2,4-triazole-3-carboxylic acid, 12.81 mg (0.1 mmol) 5-amino-1,2,4-triazole-3-carboxylic acid, 25.6 mg ( 0.15mmol) of CuCl 2 2H 2 O was added to 10 mL of distilled water and mixed evenly; the resulting mixture was sealed and subjected to hydrothermal reaction at 170°C. After reacting for 36 hours, it was cooled to room temperature at a rate of 5°C per hour to obtain dark green blocky transparent crystals. After washing and drying naturally, the single-crystal sample of the porous coordination polymer is obtained, and vacuum-dried at 110° C., the porous coordination polymer can be obtained.

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Abstract

A copper-coordinated porous polymer, preparation method and application. The invention belongs to coordination polymer materials. Its chemical formula is [Cu 3 (Tra) 2 O 2 •7H 2 O] n , the molecular structural formula is C 24 H 32 Cu 12 N 36 O 38 , where Tra is the deprotonated anion of 1,2,4-triazole, Cu is the divalent copper ion, and the material is in the form of a solid crystal. The crystallization of this polymer is a trigonal crystal system, R-3C space group, and its three-dimensional framework structure has a porosity of 51.9%. Preparation: Mix 1,2,4-triazole-3-carboxylic acid and 5-amino-1,2,4-triazole-3-carboxylic acid with CuCl 2 React under hydrothermal conditions to obtain dark green crystals. The invention can be used as a photocatalyst to convert greenhouse gas carbon dioxide into carbon monoxide. The preparation process of the invention is easy to implement, the product purity and yield are both high, and it has good application prospects in photocatalytic conversion of carbon dioxide.

Description

technical field [0001] The invention belongs to coordination polymer materials, especially porous coordination polymers and their preparation methods and applications. Background technique [0002] The earth is rich in fossil fuel resources, such as oil and coal. The combustion of fossil fuels releases large amounts of CO 2 , causing many serious environmental problems such as global warming. will CO 2 The idea of ​​reducing to chemical fuel is to solve the problem of CO 2 effective approach to the problem. To achieve this, visible light can be used to catalytically reduce CO 2 , so as to reduce the emission of greenhouse gases, and at the same time obtain new fuels such as CO and methane. Searching for efficient photocatalysts is the key to solving CO 2 The key to reduction (CN 103721738A; CN 105749914A; CN 103464172B). Traditional carbon dioxide photocatalysts generally use cheap and abundant metal complexes such as manganese and iron (ACS Catal., 2015, 5, 2521–252...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G83/00B01J31/22B01J35/10C01B32/40
CPCC08G83/008B01J31/1691B01J35/39B01J35/60
Inventor 刘丰祎范文涛寇军锋徐全清张泽宇
Owner YUNNAN NORMAL UNIV
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