Preparation method of nano silver-loaded fluorinated graphene composite

Abstract

The invention discloses a preparation method of a nano silver-loaded fluorinated graphene composite. The preparation method comprises the steps of 1) placing a graphene film in a PECVD reaction chamber, setting the pressure at 5*10<-4> to 10<-3> Pa, setting the temperature at 200 to 600 DEG C, setting plasma generation microwave power at 300 to 500 W, introducing fluorine gas through adopting argon as a carrier, and reacting for 1 to 20 h to obtain a fluorinated graphene film; 2) transferring the obtain fluorinated graphene film into an atom deposition chamber, degassing for 20 min to 30 min through adopting an inert gas, regulating the vacuum degree of an ultravacuum reaction chamber to 10<-6> to 10<-7> Pa, and regulating the temperature to 400 DEG C to 700 DEG C; and 3) adopting silver as a target material, forming a silver reaction gas source through electron beam bombardment evaporation, introducing the silver reaction gas source into the deposition chamber for 20 to 100 ns, introducing an inert carrier gas for 50 to 200 ns, repeating the steps for 5 to 20 min, alternatively introducing the silver reaction gas source and the inert carrier gas, and forming nano silver on the fluorinated graphene film, so as to obtain the nano silver-loaded fluorinated graphene composite. The obtained composite has excellent performance.

Description

technical field [0001] The invention relates to the technical field of composite material preparation, in particular to a preparation method of a fluorinated graphene composite material loaded with nano-silver. Background technique [0002] With the process of urbanization and industrialization getting faster and faster, especially since the reform and opening up, urbanization and industrialization have entered a climax, and followed by a series of environmental pollution problems that lead to unsustainable urban development, especially Air pollution and water pollution have become a major threat to human existence and a major obstacle to human health, economic and social sustainable development. Especially in recent years, people's pursuit of the home environment has become more and more demanding for interior decoration, but tolualdehyde and other volatile organic substances in decoration materials have caused serious indoor air pollution, causing respiratory diseases and ...

AI Technical Summary

Problems solved by technology

However, it is difficult for the nano-silver to be evenly and fully distributed on the surface of the graphene sheet by this method. There are a large number of nanoparticles agglomerated in some areas of the surface of the graphene sheet, and there is no distribution of nanoparticles in some areas, which leads to the effective catalytic activity of the composite material. Specific surface area decreased

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