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Dimension regulation method of porphyrin metal organic framework material

A metal-organic framework and porphyrin technology, which is applied in the field of size regulation of porphyrin metal-organic framework materials, can solve the problems of large size of porphyrin metal-organic framework nanomaterials, and achieve low hydrogen production efficiency, regular shape, and high yield high effect

Active Publication Date: 2018-09-11
HENAN UNIVERSITY
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention aims at the problem that the size of the porphyrin metal organic framework nanomaterial prepared by the existing method is relatively large, and provides a method for controlling the size of the porphyrin metal organic framework material, which can control the size within a suitable range and obtain better Hydrogen production performance

Method used

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  • Dimension regulation method of porphyrin metal organic framework material
  • Dimension regulation method of porphyrin metal organic framework material
  • Dimension regulation method of porphyrin metal organic framework material

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Experimental program
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Effect test

Embodiment 1

[0026] A method for regulating the size of a porphyrin metal-organic framework material, comprising the following steps:

[0027] (1) Dissolve CTAB in DMF to make 0.01 M CTAB solution;

[0028] (2) ZrOCl 2 ·8H 2 O was dissolved with 0.08 g benzoic acid in DMF to make 2 mg / mL ZrOCl 2 ·8H 2 DMF solution of O;

[0029] (3) Dissolve tetracarboxyphenylporphyrin in DMF to make a DMF solution of 1 mg / mL tetracarboxyphenylporphyrin;

[0030] (4) Mix 20 μL of the solution prepared in step (1), 3 mL of the solution prepared in step (2), 3 mL of the solution prepared in step (3) and 0.03 mL of trifluoroacetic acid, heat at 120 °C for 1 h, 8000 r The precipitate was collected by centrifugation for 6 min, and then washed three times with DMF, and then washed three times with acetone, and the obtained solid was the prepared carboxyporphyrin metal organic framework nanomaterial.

[0031] The SEM figure of gained carboxyporphyrin metal-organic framework nanomaterial shows ( figure 1 ),...

Embodiment 2

[0033] A method for regulating the size of a porphyrin metal-organic framework material, comprising the following steps:

[0034] (1) Dissolve CTAB in DMF to make 0.1 M CTAB solution;

[0035] (2) ZrOCl 2 ·8H 2 O was dissolved with 0.08 g benzoic acid in DMF to make 2 mg / mL ZrOCl 2 ·8H 2 DMF solution of O;

[0036] (3) Dissolve tetracarboxyphenylporphyrin in DMF to make a DMF solution of 1 mg / mL tetracarboxyphenylporphyrin;

[0037] (4) Mix 500 μL of the solution prepared in step (1), 3 mL of the solution prepared in step (2), 3 mL of the solution prepared in step (3) and 0.03 mL of trifluoroacetic acid, heat at 120 °C for 1 h, 8000 r The precipitate was collected by centrifugation for 6 min, and then washed three times with DMF, and then washed three times with acetone, and the obtained solid was the prepared carboxyporphyrin metal organic framework nanomaterial.

[0038] The SEM figure of gained carboxyporphyrin metal-organic framework nanomaterial shows ( figure 2 )...

Embodiment 3

[0040] A method for regulating the size of a porphyrin metal-organic framework material, comprising the following steps:

[0041] (1) Dissolve SDS in DMF to make a 0.01 M SDS solution;

[0042] (2) ZrOCl 2 ·8H 2 O was dissolved with 0.15 g benzoic acid in DMF to make 2 mg / mL ZrOCl 2 ·8H 2 DMF solution of O;

[0043] (3) Dissolve tetracarboxyphenylporphyrin in DMF to make a DMF solution of 1 mg / mL tetracarboxyphenylporphyrin;

[0044] (4) Mix 10 μL of the solution prepared in step (1), 3 mL of the solution prepared in step (2), 3 mL of the solution prepared in step (3) and 0.05 mL of trifluoroacetic acid, heat at 120 °C for 1 h, 8000 r The precipitate was collected by centrifugation for 6 min, and then washed three times with DMF, and then washed three times with acetone, and the obtained solid was the prepared carboxyporphyrin metal organic framework nanomaterial.

[0045] The SEM figure of gained carboxyporphyrin metal-organic framework nanomaterial shows ( image 3 ), t...

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Abstract

The invention provides a dimension regulation method of a porphyrin metal organic framework material. The method comprises the following steps of (1) adopting 1 to 5mL of DMF solution of ZrOCl2.8H2O with the concentration being 2 to 6mg / mL, adding benzoic acid, and uniformly dissolving; (2) adopting 1 to 5mL of DMF solution of tetracarboxyl-phenyl porphyrin with the concentration being 1 to 3mg / mL, wherein the mass ratio of the ZrOCl2.8H2O to the tetracarboxyl-phenyl porphyrin is 2:1; (3) after mixing the solution of the step (1) and the solution of the step (2), adding trifluoroacetic acid, mixing, adding CTAB or SDS, carrying out heating reaction at 100 to 150 DEG C for 0.5 to 1.5h, and postprocessing to obtain the porphyrin metal organic framework material. According to the dimension regulation method of the porphyrin metal organic framework material provided by the invention, the dimension can be controlled within an appropriate range, and a better hydrogen production performance can be achieved.

Description

technical field [0001] The invention belongs to the technical field of porphyrin metal organic framework materials, and in particular relates to a method for regulating the size of porphyrin metal organic framework materials. Background technique [0002] Metal-organic frameworks (Metal-Organic Frameworks, MOFs) are generally new porous materials with high porosity and specific surface area obtained by self-assembly of metal ions or metal clusters and organic ligands. The structure is conducive to energy transfer, and the structure types are rich and adjustable, so it has become a hot research topic at present. [0003] Porphyrins are common light-absorbing substances that play an important role in photosynthesis in nature. Porphyrin has a high degree of molecular symmetry and a macrocyclic conjugated structure. The electron mobility in the conjugated ring is good, and it has strong absorption in the visible light region. Therefore, it is widely used in photocatalytic syste...

Claims

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Application Information

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IPC IPC(8): C08G83/00
CPCC08G83/008
Inventor 白锋李然王亮史冬佩路丽莎郑朝阳
Owner HENAN UNIVERSITY
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