Chemical preparation method of magnetic graphene

A magnetic graphene and graphene technology, applied in the directions of inorganic material magnetism, ferrous oxide, vanadium halide, etc., can solve problems such as harming the environment, toxicity, uncontrollability, etc., and achieve controllable growth and low process cost. , the effect of simple equipment
CN102674476AInactive Publication Date: 2012-09-19HARBIN INST OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HARBIN INST OF TECH
Publication Date
2012-09-19
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a preparation method of magnetic graphene, in particular to a chemical preparation method of magnetic graphene. The preparation method aims at solving the problems of the existing synthesis method that the reaction process is toxic and harmful to the environment, large-scale production cannot be realized, the morphology, size and magnetism of magnetic nanoparticles in the magnetic graphene are not controllable and the magnetic graphene cannot be dispersed in water. The chemical preparation method comprises the steps of: 1) preparing aminated Fe3O4 magnetic nanoparticles; 2) preparing graphene; and 3) preparing magnetic graphene through chemical reaction. The chemical preparation method of the magnetic graphene has the advantages that the high temperature and the high pressure are not required, the equipment is simple, the process cost is low, the environment is protected, no pollution is caused, the grain size of the synthesized magnetic nanoparticles is uniform, the controllable growth of the magnetic nanoparticles can be realized by changing reaction conditions, the solubility of the synthesized magnetic graphene is 0.8-1.2mg / ml, the magnetic graphene can be stably dispersed in water and sediment does not occur within 1-2 months. The graphene prepared by adopting the method can be used in biomedical, energy, electronic fields and the like.
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Description

technical field

[0001] The invention relates to a preparation method of magnetic graphene. Background technique

[0002] Magnetic materials are ancient and widely used functional materials. The research on the preparation and modification of magnetic nanoparticles has always been a hot spot for scientists, and it is widely involved in applications in various fields, especially in biomedicine, biosensors, aerospace, electronic information, etc. field (Behrens. S, Nanoscale, 2011, 3, 877-892). Magnetic nanoparticles smaller than 20nm have supermagnetism at room temperature, and generate magnetic responses under the action of an external magnetic field. According to these characteristics, magnetic separation, magnetic monitoring, nuclear magnetic resonance, and targeted drug delivery and release (Hou.Y.L, Sun. S.H, Adv. Mater, 2010, 22, 2729-2742). Since the 1-100nm magnetic nanoparticles have a large surface activity and magnetic interaction and are easy to agglomerate, the ...

Claims

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