Preparation And SERS Research Of C₆₀-Ag Core-Shell Nanomaterials

As a result of fullerenes and carbon nanotubes with unique physical andchemical properties. In recent years, with the deepening of the research of nanometermaterials, fullerene and carbon nanotubes has wide application prospects have beendiscovered, to their modified, modified and became research hotspot, the carbonnanotubes dissolved small and make the problem of limited application, to sodiumzincate as electrophiles, DNA four tetrahydrofuran as solvent, a simple and efficientpreparation of hydroxyl modified MWNTs, and the MWNT-OHs could be welldispersed in ethanol, chloroform and other polar solvents, homogeneous and stabledispersion.As a result of core shell nano material core and shell material between thecoordination effect, so it has more excellent performance, and based on the SERS inthe detection of chemical substances in terms of the application, various SERS activesubstrate preparation becomes the research hot spot, surface roughening Ag substrateis enhanced with the strongest signal base, this paper uses seed growth preparation anovel SERS active substrate-Ag package C₆₀ nanoclusters core-shell nanoparticles,the use of XRD, TEM, SEM, DSR on the composition, morphology, opticalproperties were characterized by Ag, prove the product as the core, C₆₀ nanoclustersfor shell core shell structure. Then using layer-by-layer assembly technique forpreparation of Ag package C₆₀ nanoclusters basement, to study the adsorption ofpackets in the Ag C₆₀ nanoclusters surface musk xylene （MX） Raman enhancementact, showed that the Ag package C₆₀ nanoclusters substrate is a method used to detectMX good SERS active substrate, and MX detection limit can be achieved10-9moldm-3, and discusses the musk xylene SERS signal enhancement mechanism. Finally,on the SERS and musk concentration, adding metal salt, and C₆₀ nanoclusters on Agcoverage relationship.