Nitrogen-doped reduced graphene oxide nano composite material and preparation method and application thereof

A nano-composite material and graphene technology are applied in the field of nitrogen-doped reduced graphene oxide nano-composite materials and their preparation, and can solve the problems of high energy consumption and complex process.
CN111408345AInactive Publication Date: 2020-07-14SHANDONG UNIV +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANDONG UNIV
Publication Date
2020-07-14
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a nitrogen-doped reduced graphene oxide nano composite material and a preparation method and application thereof, and belongs to the technical field of graphene preparation. Thepreparation method provided by the invention comprises the following steps: mixing chitosan, glacial acetic acid and water to obtain a chitosan acetic acid aqueous solution; mixing graphene oxide with water to obtain a graphene oxide aqueous dispersion; mixing the chitosan acetic acid aqueous solution with the graphene oxide aqueous dispersion, and carrying out freeze drying to obtain chitosan / graphene oxide powder; and carrying out a thermal reduction reaction on the chitosan / graphene oxide powder to obtain the nitrogen-doped reduced graphene oxide nano composite material. The nitrogen-dopedreduced graphene oxide nano composite material is directly prepared through one-step thermal reduction reaction, so that the removal efficiency of the nitrogen-doped reduced graphene oxide nano composite material on phenol-containing pollutants is effectively improved, and meanwhile, convenient conditions are provided for subsequent treatment.
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Description

technical field

[0001] The invention belongs to the technical field of graphene preparation, and in particular relates to a nitrogen-doped reduced graphene oxide nanocomposite material and a preparation method and application thereof. Background technique

[0002] Graphene has excellent physical and chemical properties such as large specific surface area, large capacity, and high electrical conductivity, and is widely used in new materials such as mobile phones, liquid crystal displays, batteries, and electronic components. Graphene oxide (Graphene Oxide, GO) is KMnO 4 and KClO 4 Graphene obtained after strong oxidation treatment is the precursor of all functionalized graphene materials. Graphene oxide contains many oxygen-containing functional groups on its layers, such as hydroxyl (-OH), carboxyl (-COOH), carbonyl (-C=O-) and epoxy etc., because these oxygen-containing functional groups will form hydrogen bonds with water molecules in aqueous solution, causing GO to ha...

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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