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Preparation method for oxidized graphene-metal organic framework nano composite material

A technology of nanocomposite materials and metal-organic frameworks, applied in chemical instruments and methods, and other chemical processes, can solve problems such as long time and achieve low cost, good dispersion, and uniform particle effects

Inactive Publication Date: 2015-12-02
SHENYANG LIGONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is relatively mild, and it is easy to synthesize larger crystals, but it usually takes a long time, so it is limited in some aspects.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A preparation method of graphene oxide-metal organic framework nanocomposite material, comprising the following steps:

[0028] Step 1: Preparation of GOPDA:

[0029] First, 20 mg of dopamine hydrochloride was dissolved in 10 mL of Tris buffer solution, and after dissolution, 10 mg of graphene oxide (GO) was added for ultrasonic dispersion. After the dispersion was uniform, magnetic stirring was continued at room temperature for 24 hours. After the stirring is completed, thoroughly wash and filter with deionized water, then dry, and finally collect the prepared GOPDA for future use.

[0030] Step 2: Preparation of GOPDAMOF-199:

[0031] Dissolve 250 mg of 1,3,5-benzoic acid in 40 mL of N,N-dimethylformamide and ethanol solution with a volume ratio of 1:1. Copper acetate monohydrate C 4 h 6 CuO 4 ·H 2 The GOPDA prepared by 0430mg and step 1 is dissolved in the water of 30mL. After the solutions were mixed, 0.25 mL of triethylamine was added to the mixture, and sti...

Embodiment 2

[0033] A preparation method of graphene oxide-metal organic framework nanocomposite material, comprising the following steps:

[0034] Step 1: Preparation of GOPDA:

[0035] First, 20 mg of dopamine hydrochloride was dissolved in 10 mL of Tris buffer solution. After fully dissolving, 10 mg of graphene oxide (GO) was added, and placed in an ultrasonic wave for ultrasonic dispersion. After the dispersion was uniform, magnetic stirring was continued at room temperature for 24 hours. After the stirring is completed, thoroughly wash and filter with deionized water, then dry, and finally collect for future use.

[0036] Step 2: Preparation of GOPDAMOF-199:

[0037] Dissolve 250 mg of 1,3,5-benzoic acid in 40 mL of N,N-dimethylformamide and ethanol solution with a volume ratio of 1:1. Copper acetate monohydrate C 4 h 6 CuO 4 ·H 2 O4 30mg was dissolved in 20mL of water. Then 0.15g GOPDA was dissolved in 10mL water, and finally the three solutions were mixed, and 0.25mL triethyl...

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PUM

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Abstract

Provided is a preparation method for an oxidized graphene-metal organic framework nano composite material. Dopamine hydrochloride, oxidized graphene and a Tris buffer solution are employed to prepare GO@PDA, and then GO@PDA, 1,3,5-trimesic acid, copper acetate monohydrate, N,N-dimethyl formamide, ethanol, deionized water and triethylamine are employed to prepare GO@PDA@MOF-199. The operation is simple, the cost is low, the particle diameters of the prepared GO@PDA@MOF-199 nano composite material are in a nano level, particles are uniform, the dispersibility is good, and the adsorption capability is strong. No environmental pollution can be caused during preparation, and the preparation method is harmless to health of operation personnel.

Description

technical field [0001] The invention relates to a preparation method of a metal organic framework composite material, in particular to a preparation method of a graphene oxide-metal organic framework nanocomposite material (GOPDAMOF-199) modified by dopamine hydrochloride. Background technique [0002] There are many methods for the synthesis of metal-organic framework materials, and the common methods include hydrothermal method, diffusion method, microwave-assisted method, room temperature stirring method, ultrasonic-assisted method and so on. [0003] (1) Hydrothermal method [0004] The hydrothermal method (also known as the hydrothermal method) refers to a method in which water is used as a solvent to react the reactants through high temperature and high pressure under airtight conditions to cultivate crystals. So far, the reaction method of the hydrothermal method is not limited to using water as a solvent, and may be part or all of an organic solvent during the react...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/22B01J20/30
Inventor 唐祝兴李菲菲王巧玲
Owner SHENYANG LIGONG UNIV
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