Nanosilver/graphene oxide composite dispersion fluid, and preparation method and application thereof

A technology of composite materials and graphene, which is applied in the field of nanocomposite materials and its preparation, to achieve the effect of strong repeatability and inhibition of agglomeration
CN106391002AActive Publication Date: 2017-02-15BEIJING UNIV OF CHEM TECH +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
BEIJING UNIV OF CHEM TECH
Publication Date
2017-02-15

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Abstract

The invention discloses a nanosilver / graphene oxide composite dispersion fluid, and a preparation method and application thereof. The dispersion fluid comprises a liquid medium and a nanosilver / graphene oxide composite, wherein the nanosilver / graphene oxide composite is uniformly dispersed in the liquid medium; the concentration of the dispersion fluid is 0.01 to 10 mg / ml; and nanosilver particles in the nanosilver / graphene oxide composite are uniformly dispersed and adhered onto the surface of graphene oxide, and the sizes of the nanosilver particles are in a range of 5 to 50 nm. According to the invention, a hypergravity rotating packed bed or a micro-channel reactor is used as reaction equipment; no reducing agent is needed in the process of preparation; and the prepared nanosilver / graphene oxide composite dispersion fluid is transparent and stable and is free of precipitates after standing for six months. Compared with the prior art, the method provided by the invention is rapid, simple, efficient and applicable to large-scale industrial production. The nanosilver / graphene oxide composite dispersion fluid provided by the invention has wide application prospects in fields like catalysis, energy storage, electronics, antibiosis and surface Raman enhancement.
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Description

technical field

[0001] The invention relates to the field of nanocomposite materials and their preparation. More specifically, it relates to a nano-silver / graphene oxide composite material dispersion and its preparation method and application. Background technique

[0002] Graphene is a new type of two-dimensional carbon material with a single-layer carbon atom thickness. The carbon atoms are arranged in a regular hexagonal honeycomb lattice. 2 hybridization. In 2004, British scientists Geim and Novoselov et al. (Novoselov K S, Geim A K, Morozov S V, Jiang D, Zhang Y, Dubonos S V, Grigorieva I V, Firsov A A. Electric field effect in atomically thin carbon films[J]. Science, 2004, 306 :666-669; Geim A K, Novoselov K S.The rise of graphene[J].Nat Mater.,2007,6:183-191) people first prepared stable high-quality single-layer graphene by mechanically exfoliating graphite , the two scientists also won the 2010 Nobel Prize in Physics for their breakthrough work. Graphene has a ...

Claims

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