Silver nanoparticle-zinc oxide porous nanosheet-carbon fiber cloth composite substrate as well as preparation method and use of substrate

A silver nanoparticle and zinc oxide nanotechnology, which is applied in metal material coating process, superimposed layer plating, coating and other directions, can solve the problems of effective surface area discount, structural stability is difficult to guarantee, specific surface area cannot be obtained, etc. Achieve the effect of scientific preparation method, stable structure and easy industrialization
CN103866321AInactive Publication Date: 2014-06-18HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
Publication Date
2014-06-18
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a silver nanoparticle-zinc oxide porous nanosheet-carbon fiber cloth composite substrate as well as a preparation method and use of the substrate. The substrate is formed by the zinc oxide porous nanosheet formed by zinc oxide nanoparticles and erected on the carbon fiber cloth, and the silver nanoparticles modify the surface, wherein the height of the zinc oxide porous nanosheet is 11-12 mu m, the width of the zinc oxide porous nanosheet is 7-10 mu m and the thickness of the zinc oxide porous nanosheet is 20-30nm; the grain size of the zinc oxide nanoparticles is 15-25nm, and the grain size of the silver nanoparticles is 15-120nm. The method comprises the following steps: firstly, growing a zinc oxide seed crystal layer on the carbon fiber cloth by an atomic layer deposition technology; then, suspending the layer in a precursor liquid to be soaked to obtain the carbon fiber cloth coated with a precursor on the surface; then, annealing first to obtain the carbon fiber cloth with the zinc oxide porous nanosheet on the surface; and then, carrying out ion sputtering on the silver nanoparticles to prepare a target product. The substrate can be used as an active substrate with surface enhanced Raman scattering, and the content of rhodamine or tetrachlorobiphenyl attached to the substrate is measured by using a laser Raman spectrometer.
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Description

Technical field

[0001] The invention relates to a composite substrate and a preparation method and use thereof, in particular to a silver nano particle-zinc oxide porous nano sheet-carbon fiber cloth composite substrate and a preparation method and use thereof. Background technique

[0002] Recent studies have shown that Surface Enhanced Raman Scattering (SERS) technology has obvious advantages in achieving rapid detection of trace organic pollutants. For this reason, people have made unremitting efforts to obtain SERS substrates with high SERS activity and uniform and stable signals, such as the title "Precursor-Directed Self-Assembly of Porous ZnO Nanosheets as High-Performance Surface-Enhanced Raman Scattering Substrate" Small 2014, 10 , 48-51 ("Porous zinc oxide nanosheets formed by self-assembly as a precursor of high-performance surface Raman enhanced substrate" "Microscale" 2014, Issue 10, pages 48-51). The preparation principle of the zinc oxide porous nanosheet mentione...

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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