Three-dimensional graphene/Fe3O4 magnetic nanometer adsorption material

An adsorption material and magnetic nano technology, which is applied in the direction of adsorption of water/sewage treatment, water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of difficult separation and low adsorption capacity, and achieve low cost and excellent preparation method Simple, cost-effective effect
CN108905973AInactive Publication Date: 2018-11-30SHANXI UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SHANXI UNIV
Publication Date
2018-11-30
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a three-dimensional graphene / Fe3O4 magnetic nanometer adsorption material. The material is obtained by ultrasonically crushing graphene oxide, adding Fe<3+> and L-Cys and performing one-pot coprecipitation under an alkaline condition. Characterization by a scanning electron microscope, a transmission electron microscope, X-ray diffraction, infrared spectroscopy, N2 adsorption and desorption and other methods prove that the three-dimensional graphene grafted with Fe3O4 magnetic nanoparticles has a good three-dimensional structure. The nanometer material synthesis method is simple and low in cost, has a large specific surface area, rich hydroxyl groups and free carboxyl groups and good magnetic properties, and can be used as an adsorption material for dye contaminantsin an aqueous solution. Adsorption property research is carried out by taking cationic methylene blue (MB), anionic Congo red (CR) and neutral type neutral red (NR) dyes as model molecules, and indicates that the material can effectively adsorb cationic, anionic and neutral dyes, and has potential applications in environmental pollutant adsorption materials.
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Description

technical field

[0001] The invention relates to the technical field of magnetic adsorption materials and water treatment, in particular to a three-dimensional graphene / Fe 3 o 4 Magnetic nano-adsorption material and its preparation method and application. Background technique

[0002] Dyestuffs are widely used in industries such as textile industry, papermaking industry, leather processing and light industry, which not only promotes the improvement of the output and quality of textiles, but also improves people's living standards. Dyes can be divided into cationic, anionic and neutral dyes, with a variety of colors, very easy to color some textiles and other industrial products, and not easy to decolorize, so they are widely used in industrial production. However, while dyes promote economic development and create economic value, they also enter the soil and groundwater along with production, transportation, and use. This kind of wastewater is dark in color and difficult to...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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