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Functionalized graphene oxide, preparation method and application thereof

A graphene and functionalization technology, applied in the field of functionalized graphene oxide and its preparation, can solve the problems of easy agglomeration, limited application, single function of graphene oxide, etc.

Active Publication Date: 2019-03-29
JILIN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a large number of oxygen-containing groups make it easy to agglomerate in organic matrices, which limits its application. Therefore, a variety of modification methods, including non-covalent and covalent chemical modifications, are used to treat oxidation. Functional modification of graphene to broaden its scope of application in related fields
Various functionalization methods of graphene oxide have been disclosed in the prior art, but the obtained graphene oxide often has a single function

Method used

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  • Functionalized graphene oxide, preparation method and application thereof

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Effect test

Embodiment 1

[0020] The method for preparing functionalized graphene oxide provided by the present invention includes the following steps:

[0021] S1. Under ice-water bath conditions, add cyanuric chloride to the mixture of acetone and water and stir evenly, add ammonia water, react at 5°C for 30 minutes, filter, wash, and dry after the reaction to obtain material A;

[0022] S2. Add material A to 1,4-dioxane and mix well, add the 1,4-dioxane solution of p-aminodiphenylamine and sodium carbonate, stir at room temperature for 30 minutes, filter, wash, and dry to obtain the material B;

[0023] S3. Add material B to 1,4-dioxane, add 1H,1H-perfluorooctylamine, adjust the pH to 7, heat up to 90°C, react for 3h, and leave it to stand, filter, and dry after the reaction is complete Get material C;

[0024] S4. The graphene oxide is acylated, and then added to dimethylformamide, and the material C is added and mixed uniformly, and the reaction is stirred at 90° C. for 20 hours. After the reaction, the ...

Embodiment 2

[0027] The method for preparing functionalized graphene oxide provided by the present invention includes the following steps:

[0028] S1. Under ice-water bath conditions, add cyanuric chloride to the mixture of acetone and water and stir evenly, add ammonia water, and react at 1°C for 50 minutes. After the reaction, filter, wash, and dry to obtain material A;

[0029] S2. Add material A to 1,4-dioxane and mix evenly, add the 1,4-dioxane solution of p-aminodiphenylamine and sodium carbonate, stir at room temperature for 100 minutes, filter, wash, and dry to obtain the material B;

[0030] S3. Add material B to 1,4-dioxane, add 1H,1H-perfluorooctylamine, adjust the pH to 7, raise the temperature to 80°C, react for 4h, and then stand, filter and dry after the reaction Get material C;

[0031] S4. The graphene oxide is acylated, and then added to dimethylformamide, and the material C is added and mixed uniformly, and the reaction is stirred at 80° C. for 30 hours. After the reaction, th...

Embodiment 3

[0034] The method for preparing functionalized graphene oxide provided by the present invention includes the following steps:

[0035] S1. Under ice-water bath conditions, add cyanuric chloride to the mixture of acetone and water and stir evenly, add ammonia water, react at 4°C for 38 minutes, filter, wash, and dry after the reaction to obtain material A;

[0036] S2. Add material A to 1,4-dioxane and mix evenly, add the 1,4-dioxane solution of p-aminodiphenylamine and sodium carbonate, stir at room temperature for 50 minutes, filter, wash, and dry to obtain the material B;

[0037] S3. Add material B to 1,4-dioxane, add 1H,1H-perfluorooctylamine, adjust the pH to 7, raise the temperature to 87°C, and react for 3.3h. After the reaction, let it stand and filter. Material C is obtained by drying;

[0038] S4, the graphene oxide is acylated, and then added to dimethylformamide, the material C is added and mixed uniformly, the reaction is stirred at 87°C for 24 hours, and the material D ...

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Abstract

The invention discloses a preparation method of functionalized graphene oxide. The method includes: under an ice-water bath condition, adding cyanuric chloride into a mixed solution of acetone and water, stirring the substances evenly, adding ammonia water, carrying out reaction at 1-5DEG C for 30-50min, and then conducting filtering, washing and drying to obtain a material A; adding the materialA into 1, 4-dioxane, mixing the substances evenly, adding a 1, 4-dioxane solution of p-aminodiphenyl amine and sodium carbonate, conducting stirring at room temperature for 30-100min, and performing filtering, washing and drying to obtain a material B; adding the material B into 1, 4-dioxane, adding 1H, 1H-perfluorooctylamine, adjusting the pH to 7, carrying out reaction at 80-90DEG C for 3-4h, and conducting standing, filtering and drying to obtain a material C; subjecting graphene oxide to acylating chlorination, then adding the product into dimethylformamide, adding a material C, carrying out reaction at 80-90DEG C for 20-30h, conducting filtering and drying, mixing the obtained material with plant polyphenol and water evenly, carrying out reaction at 35-60DEG C for 30-48h, and performing drying.

Description

Technical field [0001] The invention relates to the technical field of inorganic materials, in particular to a functionalized graphene oxide and a preparation method and application thereof. Background technique [0002] Graphene oxide is an important derivative of graphene. As a flexible two-dimensional material, it has been widely used in nanocomposite materials, photocatalysis, energy storage, energy conversion and other fields. The surface of graphene oxide has many oxygen-containing functional groups, such as Hydroxyl groups, carboxyl groups, epoxy groups, etc., these groups can improve the interface interaction between graphene oxide and the matrix material, and improve the mechanical properties of the composite material, so as to obtain a graphene oxide composite material with excellent performance. However, a large number of oxygen-containing groups make it prone to agglomeration in the organic matrix, which limits its application. Therefore, various modification methods,...

Claims

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Application Information

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IPC IPC(8): C09C1/00C09C3/08C08K9/04C08K3/04C08L7/00
CPCC01P2006/22C01P2006/37C01P2006/90C08K9/04C08L2201/02C09C1/00C09C3/08C08K3/042C08L7/00
Inventor 刘洋姜雨虹高铭刘洪波张小龙陈雷
Owner JILIN NORMAL UNIV
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