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Preparation method of magnetic-functionalized graphene composite material

A composite material and magnetic function technology, which is applied in chemical instruments and methods, carbon compounds, and the magnetism of inorganic materials, can solve the problems of unfavorable expansion of production and cumbersome preparation process, and achieve easy industrial production, simple preparation process, and uniform distribution. Effect

Inactive Publication Date: 2012-07-18
XIAMEN FUNANO NEW MATERIAL TECH COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This preparation method can better control the particle size of magnetic nanoparticles, but the preparation process is cumbersome, which is not conducive to expanding production

Method used

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  • Preparation method of magnetic-functionalized graphene composite material
  • Preparation method of magnetic-functionalized graphene composite material
  • Preparation method of magnetic-functionalized graphene composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] 1) Prepare 50 mL of ethylenediamine / water mixed solvent (9:1 by volume).

[0031] 2) Weighing 50 mg of graphite oxide and 50 mg of ferric acetylacetonate were dispersed in the mixed solvent of step 1), and ultrasonically dispersed for 15 h; the mass ratio of graphite oxide to ferric acetylacetonate was 1:1;

[0032] 3) The mixed solution obtained in step 2) was transferred to a polytetrafluoroethylene-lined autoclave, and reacted at 200° C. for 24 hours.

[0033] 4) Cool to room temperature after the reaction, and pour out the product in the polytetrafluoroethylene lining. The obtained solid is washed with water and ethanol solution several times, and then the product is collected by a magnet, and the sample is dried to obtain a magnetically functionalized graphene composite material.

[0034] The magnetically functionalized graphene composite material sample obtained in this embodiment is characterized by various items, and the characterization results can be found in...

Embodiment 2

[0041] 1) Prepare 50mL ethylenediamine / water mixed solution (volume ratio is 9:1).

[0042] 2) Weigh 70 mg of graphite oxide and 30 mg of iron acetylacetonate and disperse them in the mixed solvent of step 1), and disperse them ultrasonically for 15 hours; the mass ratio of graphite oxide to iron acetylacetonate is 7:3.

[0043]3) The mixed solution obtained in step 2) was transferred to a polytetrafluoroethylene-lined autoclave, and reacted at 200° C. for 24 hours.

[0044] 4) Cool to room temperature after the reaction, and pour out the product in the polytetrafluoroethylene lining. The obtained solid is washed with water and ethanol solution several times, and then the product is collected by a magnet, and the sample is dried to obtain a magnetically functionalized graphene composite material.

[0045] The obtained magnetic functionalized graphene composite material sample in the present embodiment, its X-ray diffraction figure and energy spectrum analysis result are ident...

Embodiment 3

[0049] 1) Prepare 50mL ethylenediamine / water mixed solution (volume ratio is 9:1).

[0050] 2) Weigh 90 mg of graphite oxide and 10 mg of iron acetylacetonate and disperse them in the mixed solvent of step 1), and disperse them ultrasonically for 15 hours; the mass ratio of graphite oxide to iron acetylacetonate is 9:1.

[0051] 3) The mixed solution obtained in step 2) was transferred to a polytetrafluoroethylene-lined autoclave, and reacted at 200° C. for 24 hours.

[0052] 4) Cool to room temperature after the reaction, and pour out the product in the polytetrafluoroethylene lining. The obtained solid is washed with water and ethanol solution several times, and then the product is collected by a magnet, and the sample is dried to obtain a magnetically functionalized graphene composite material.

[0053] The obtained magnetic functionalized graphene composite material sample in the present embodiment, its X-ray diffraction figure and energy spectrum analysis result are iden...

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Abstract

The invention provides a preparation method of a magnetic-functionalized graphene composite material, and relates to preparation of a graphene composite material. According to the invention, the preparation method is simple, the raw material is easily obtained, and the industrial production is easy; the prepared magnetic-functionalized graphene composite material has superparamagnetic property and is higher in saturated magnetization; and the graphene carrier is good in conductivity, and loaded ferroferric oxide nano particles are uniformly distributed, are small and are good in crystallizability. The preparation method comprises the following steps of: matching ethanediamine and water into a mixed solvent, then ultrasonically dispersing graphite oxide and iron acetylacetonate in the mixed solvent, and obtaining ethanediamine / dispersion of the graphite oxide and the iron acetylacetonate; transferring the ethanediamine / dispersion of the graphite oxide and the iron acetylacetonate into a reactor lined with polytetrafluoroethylene for reaction and obtaining solid products; and cleaning the solid products, collecting the products with a magnet, drying and obtaining the magnetic-functionalized graphene composite material.

Description

technical field [0001] The invention relates to the preparation of a graphene composite material, in particular to a method for preparing a magnetically functionalized graphene composite material through a one-step solvothermal reaction method. Background technique [0002] Graphene is a two-dimensional periodic honeycomb lattice structure composed of a single layer of carbon atoms, and is the thinnest two-dimensional nanomaterial so far. Since Andre Geim and Kostya Novoselov first reported its micromechanical exfoliation preparation method in 2004, graphene has been known for its unique structure and excellent properties, such as high theoretical surface area, high charge mobility, and high Young's modulus. Quantity, high thermal conductivity, etc. have aroused widespread concern of scientists. [0003] Due to the potential applications in the fields of materials, chemistry, and biomedicine, such as magnetically oriented targeted drug carriers, magnetic resonance imaging, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/04H01F1/10H01F1/34C01B32/192C01B32/194
Inventor 邓顺柳刘跃文谢素原黄荣彬郑兰荪
Owner XIAMEN FUNANO NEW MATERIAL TECH COMPANY
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