A method for rapidly synthesizing zif-61 materials

A ZIF-61 and mixed solution technology, which is applied in the field of rapid synthesis of ZIF-61 materials, can solve the problems of application limitations and small surface area, and achieve the effects of simple operation, mild conditions and energy saving

Active Publication Date: 2020-04-07
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with other ZIFs materials, ZIF-61 has less surface area, so its application is limited

Method used

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  • A method for rapidly synthesizing zif-61 materials
  • A method for rapidly synthesizing zif-61 materials
  • A method for rapidly synthesizing zif-61 materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] 2.00g Zn(NO 3 ) 2 ·6H 2 O. Dissolve 2.75g imidazole and 1.11g 2-methylimidazole in 20ml methanol, stir; add 0.173g N,N,N,N-tetramethylhexamethylenediamine to the mixed solution obtained above, stir the obtained mixture for 1min The product was filtered with suction; the filtered product was dried in a vacuum oven at 150°C for 12 hours to obtain a ZIF-61 material, labeled as sample A1. Through calculation, the productive rate of product is: 95%, and productive rate is higher.

Embodiment 2

[0032] 2.00g Zn(NO 3 ) 2 ·6H 2 O. Dissolve 2.75g imidazole and 1.11g 2-methylimidazole in 20ml methanol, stir; add 0.35g N,N,N,N-tetramethylhexamethylenediamine to the mixed solution obtained above, stir the obtained mixture for 1min The product was filtered with suction; the filtered product was dried in a vacuum oven at 150° C. for 12 hours to obtain a ZIF-61 material, labeled as sample A2. Through calculation, the productive rate of product is: 96%, and productive rate is higher.

Embodiment 3

[0034] 2.00g Zn(NO 3 ) 2 ·6H 2 O. Dissolve 2.75g imidazole and 1.11g 2-methylimidazole in 20ml methanol and stir; add 0.51g N,N,N,N-tetramethylhexamethylenediamine to the mixed solution obtained above, stir the obtained mixture for 1min The product was filtered with suction; the filtered product was dried in a vacuum oven at 150° C. for 12 hours to obtain a ZIF-61 material, labeled as sample A3. After calculation, the yield of the product is: 96.8%, which is relatively high.

[0035] The ZIF-61 material rapidly prepared in Example 1 and Example 3 was analyzed as a representative. The analysis results of the ZIF-61 material prepared in other examples are basically the same as those in Example 1 and Example 3, and are not provided one by one.

[0036] (1) Crystal structure properties of the rapidly synthesized ZIF-61 material

[0037] The crystal structure of Example A of the present invention was characterized by using a D8-ADVANCE model X-ray diffractometer produced by Ger...

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Abstract

The invention discloses a ZIF-61 material rapid synthesizing method. The ZIF-61 material rapid synthesizing method can successfully shorten the synthesizing time to 1 minute. The method comprises the following steps of dissolving and stirring Zn(NO3)2*6H2O, imidazole and 2-methylimidazole into methyl alcohol for intensive dissolving; adding and stirring N, N, N, N-tetramethylethylenediamine into the mixed solution; suction-filtering obtained products and drying the filtered products inside a vacuum drying oven to obtain finished ZIF-61 materials. By means of the N, N, N, N- tetramethylethylenediamine serving as template agent, the ZIF-61 material rapid synthesizing method is simple in operation, mild in conditions and capable of greatly shortening the synthesizing time and improving the space time yield.

Description

technical field [0001] The invention belongs to the field of rapid preparation of metal organic frameworks, and in particular relates to a method for rapidly synthesizing ZIF-61 materials. Background technique [0002] Metal-organic frameworks (MOFs) refer to porous crystalline materials formed by the coordinated self-assembly of metal ions or metal clusters and organic ligands. Its high specific surface area, high porosity and adjustable pore size make MOFs materials have good application prospects in gas storage, adsorption separation, heterogeneous catalysis, drug delivery and chemical sensors. However, most of the reported MOFs only have a microporous structure, which limits its application to the separation and reaction of small molecules, and the narrow channels also limit the rate of diffusion and mass transfer. Therefore, the synthesis of hierarchically porous MOFs with both mesoporous and microporous structures is of great significance. On the one hand, the materi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G83/00
CPCC08G83/008
Inventor 奚红霞段崇雄张航李非儿
Owner SOUTH CHINA UNIV OF TECH
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