Influence of Ag nanocubes edge length on surface enhanced Raman scattering intensity
Ag nanocubes with different edge lengths were fabricated using hydrothermal method by changing the parameters such as reaction temperature,reaction time,precursors concentration and so on. And the influence of Ag nanocubes edge length on surface enhanced Raman scattering (SERS) intensity was discussed. The results indicated that,the SERS intensity rose firstly and then fell with the increase of Ag nanocubes edge length. The Ag nanocubes of 75 nm in edge length displayed a maximum SERS intensity. The nanocubes of 75 nm in edge length were used as SERS substrates,and the typical textile wastewater pollutant Rhodamine B (RhB) was used as probe molecule to investigate the influence on SERS intensities. The results showed that SERS signals of RhB could still be detected at 10-6 mol/L. Therefore,Ag nanocubes can be used as suitable SERS substrates with high sensitivity for pollutant detection of low concentrations.
Ag nanocubesurface enhanced Raman scattering(SERS)hydrothermal methodRhodamine B (RhB)
万方数据
维普
