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Metal-organic framework material with nano pores and preparation method and application thereof

An organic framework and nanopore technology, applied in organic chemistry, zinc-organic compounds, chemical instruments and methods, etc., can solve the problems of high production cost, low production efficiency, and high production equipment requirements

Inactive Publication Date: 2009-09-16
ANHUI UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In many cases, the synthesis of nanoporous metal-organic frameworks is carried out under hydrothermal or solvothermal conditions, but both hydrothermal and solvothermal synthesis require high temperature (100-1000 degrees Celsius) and high pressure (1-100Mpa) conditions At the same time, the reaction time is long (usually several days), so the synthesis of metal-organic framework materials with nanopores by hydrothermal or solvothermal requires high production equipment, high production energy consumption, low production efficiency, and high production costs.

Method used

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  • Metal-organic framework material with nano pores and preparation method and application thereof
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  • Metal-organic framework material with nano pores and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038]Weigh 0.181 g (0.83 mmol) of zinc nitrate dihydrate and dissolve it in 5 mL of water as reaction component A. Weigh 0.105 g (0.5 mmol) of 1,3,5-benzenetricarboxylic acid and dissolve it in 2 mL of ethanol as reaction component B. Add reaction component A to reaction component B, or add reaction component B to reaction component A, put into a 20mL test tube, and then put the test tube containing the reaction mixture into the ultrasonic generator filled with water (JL-60DTH, Shanghai J&L Ultrasonic Instrument Co., Ltd.), the ultrasonic frequency is 40KHz, and the output power is 60W. Turn on the ultrasonic switch, react the reaction container under ultrasonic radiation for 5 minutes, and stop the reaction. The resulting reaction mixture was suction-filtered, washed with 50 mL of water, and then washed with 10 mL of ethanol for 3 times, and then the product was put into a vacuum drying oven and dried at 70 degrees Celsius for 4 hours under the condition of a vacuum of 0.00...

Embodiment 2

[0041] Weigh 0.181 g (0.83 mmol) of zinc nitrate dihydrate and dissolve it in 5 mL of water as reaction component A. Weigh 0.105 g (0.5 mmol) of 1,3,5-benzenetricarboxylic acid and dissolve it in 2 mL of ethanol as reaction component B. Add reaction component A to reaction component B, or add reaction component B to reaction component A, put into a 20mL test tube, and then put the test tube containing the reaction mixture into the ultrasonic generator filled with water (JL-60DTH, Shanghai J&L Ultrasonic Instrument Co., Ltd.), the ultrasonic frequency is 40KHz, and the output power is 60W. Turn on the ultrasonic switch, react the reaction container under ultrasonic radiation for 30 minutes, and stop the reaction. The resulting reaction mixture was suction-filtered, washed with 50 mL of water, and then washed with 10 mL of ethanol for 3 times, and then the product was put into a vacuum drying oven and dried at 70 degrees Celsius for 4 hours under the condition of a vacuum of 0....

Embodiment 3

[0044] Coat a certain amount of the metal-organic framework material synthesized in Example 2 on a glass plate, fix it in a quartz cuvette, add 2mL of acetonitrile as a solvent in the cuvette, and measure it at an excitation wavelength of 327nm and room temperature. After adding a certain volume of ethylamine with a micro-syringe each time, measure its fluorescence intensity under the same conditions. The fluorescence intensity of the material test piece varies with the addition of ethylamine as follows: Figure 5 shown.

[0045] As can be seen from the figure, as the amount of ethylamine increases, the fluorescence intensity of the maximum absorption peak of the metal-organic framework material test piece synthesized in Example 2 gradually decreases, and its quantitative relationship is as follows: Figure 5 shown.

[0046] In order to investigate the impact caused by other organic amines on the determination of ethylamine, the same method as in this embodiment has been used...

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Abstract

The invention relates to a metal-organic framework material with nano pores and a preparation method and application thereof. The method comprises the step: at least one metal salt react with at least one single-tooth or multi-teeth organic compound which can match with metal ions when at least one solvent exists under conditions of ultrasonic radiation and normal pressure; and the internal part of the obtained metal-organic framework solid has pores and channels with the sizes of 0.3 to 100nm with at least one direction in space. The invention has mild preparation condition and the product has wide application.

Description

technical field [0001] The invention belongs to a nanostructure material, in particular to a metal-organic framework material with holes in the range of 0.3-100nm and its preparation method and application. Background technique [0002] Metal-organic framework materials with nanopores are a new class of porous materials that have been developed rapidly in the past decade. This type of material is assembled mainly through coordination bonds based on transition metals and organic ligands. Compared with traditional inorganic porous materials such as zeolites, metal-organic framework materials have the characteristics of diverse structures, unique properties, simple synthesis methods, and mild synthesis conditions. At the same time, this type of material has broad application prospects in many fields such as catalysis, adsorption, ion exchange, selective separation and new sensors. Due to the complexity and diversity of the interaction between organic ligands and metal ions, it...

Claims

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Application Information

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IPC IPC(8): C07F3/06C07F19/00B01J20/22B01J31/22
CPCY02C10/08Y02C20/40
Inventor 裘灵光李宗群姜霞
Owner ANHUI UNIVERSITY
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