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Preparation method and applications of graphene/Fe3O4 magnetic nanometer composite material

A technology of ferroferric oxide and magnetic nanometers, which is applied in chemical instruments and methods, oxidized water/sewage treatment, physical/chemical process catalysts, etc., can solve the problems of high carcinogenicity and disturbing ecosystems, and achieve short reaction time and distribution The effect of uniformity and easy large-scale industrial production

Inactive Publication Date: 2017-03-08
江苏金茂源生物化工有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Printing and dyeing wastewater enters the water, seriously disturbing the ecosystem, and some of its compounds are highly carcinogenic

Method used

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  • Preparation method and applications of graphene/Fe3O4 magnetic nanometer composite material
  • Preparation method and applications of graphene/Fe3O4 magnetic nanometer composite material
  • Preparation method and applications of graphene/Fe3O4 magnetic nanometer composite material

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Experimental program
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Effect test

Embodiment 1

[0030] The preparation method of described graphene / ferroferromagnetic nanocomposite material, comprises the following steps:

[0031] (1) Graphene oxide is prepared by ultrasonic method:

[0032] a. According to the mass ratio of 1:300, the graphene oxide dispersion with a solid content of 2% is added to distilled water and stirred, then ultrasonicated with an ultrasonic cell pulverizer for 1 min and then centrifuged, and the upper graphene oxide solution is taken for subsequent use;

[0033] (2) Preparation of graphene / ferromagnetic nanocomposite material:

[0034] b. FeCl 3 ·6H 2 O and FeSO 4 ·7H 2 O was mixed according to the molar ratio of 1:1, then added deionized water, and stirred until fully dissolved, in which FeCl 3 ·6H 2 O and FeSO 4 ·7H 2 The mass ratio of O total mass to deionized water is 1:8;

[0035] c. Under the protection of nitrogen, the FeCl 3 ·6H 2 O and FeSO 4 ·7H 2 The aqueous solution of O was added to the graphene oxide solution stirred a...

Embodiment 2

[0040] The preparation method of described graphene / ferroferromagnetic nanocomposite material, comprises the following steps:

[0041] (1) Graphene oxide is prepared by ultrasonic method:

[0042] a. According to the mass ratio of 10:145, the graphene oxide dispersion liquid with a solid content of 3% is added to distilled water and stirred, then centrifuged after ultrasonic 5min with an ultrasonic cell pulverizer, and the upper graphene oxide solution is taken for subsequent use;

[0043] (2) Preparation of graphene / ferromagnetic nanocomposite material:

[0044] b. FeCl 3 ·6H 2 O and FeSO 4 ·7H 2 O was mixed according to the molar ratio of 2:1, then added deionized water, stirred until fully dissolved, in which FeCl 3 ·6H 2 O and FeSO 4 ·7H 2 The mass ratio of O total mass to deionized water is 6:20;

[0045] c. Under the protection of nitrogen, the FeCl 3 ·6H 2 O and FeSO 4 ·7H 2The aqueous solution of O was added to the graphene oxide solution stirred at a cons...

Embodiment 3

[0050] The preparation method of described graphene / ferroferromagnetic nanocomposite material, comprises the following steps:

[0051] (1) Graphene oxide is prepared by ultrasonic method:

[0052] a. According to the mass ratio of 5:200, the graphene oxide dispersion liquid with a solid content of 2.3% is added to distilled water and stirred, then centrifuged after ultrasonic 3min with an ultrasonic cell pulverizer, and the upper graphene oxide solution is taken for subsequent use;

[0053] (2) Preparation of graphene / ferromagnetic nanocomposite material:

[0054] b. FeCl 3 ·6H 2 O and FeSO 4 ·7H 2 O was mixed according to the molar ratio of 1.5:1, then added deionized water, and stirred until fully dissolved, wherein FeCl 3 ·6H 2 O and FeSO 4 ·7H 2 The mass ratio of O total mass to deionized water is 3:10;

[0055] c. Under the protection of nitrogen, the FeCl 3 ·6H 2 O and FeSO 4 ·7H 2 The aqueous solution of O was added to the graphene oxide solution stirred at...

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Abstract

The invention relates to a preparation method and applications of a graphene / Fe3O4 magnetic nanometer composite material, and belongs to the technical field of magnetic nanometer composite materials. A purpose of the present invention is to solve the problems of low efficiency and difficult recovery of the existing catalyst. The preparation method comprises: a, adding a graphene oxide dispersion liquid to distilled water, stirring, carrying out ultrasonic treatment, centrifugating, and taking the upper layer graphene oxide solution so as to be spare; b, mixing FeCl3.6H2O and FeSO4.7H2O, adding deionized water, and dissolving; c, adding the obtained solution to the graphene oxide solution, and uniformly stirring to obtain a mixing solution; d, adding ammonia water to the mixing solution in a dropwise manner, and crystallizing to obtain a composite material dispersion liquid; and e, carrying out ultrasonic treatment on the dispersion liquid, carrying out suction filtration to separate a graphene / Fe3O4 magnetic nanometer composite material, washing, and drying to obtain the graphene / Fe3O4 magnetic nanometer composite material. The method of the present invention can be used for preparing the graphene / Fe3O4 magnetic nanometer composite material.

Description

technical field [0001] The invention relates to a magnetic graphene composite material, in particular to a preparation method and application of a graphene / ferroferric oxide magnetic nanocomposite material, and belongs to the technical field of magnetic nanocomposite materials. Background technique [0002] Graphene (Graphene, GP) is a carbon atom with sp 2 The planar film of the hexagonal honeycomb lattice composed of hybrid orbitals, a new two-dimensional carbon nanomaterial with a thickness of only one carbon atom, has always been considered a hypothetical structure that cannot exist alone. In 2004, a physicist at the University of Manchester in the United Kingdom Andre Geim successfully separated graphene from graphite in experiments, confirming that it can exist alone, creating a new era of research and application of graphene materials. Due to its excellent characteristics such as extremely low resistivity and extremely fast electron migration speed, graphene has a ve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/745C02F1/72
CPCC02F1/722B01J23/745C02F2103/325C02F2101/308B01J35/33Y02W10/37
Inventor 张超瞿玮陈浩李腾李芳
Owner 江苏金茂源生物化工有限责任公司
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