Synthesis of Cu2O/Ag Composite with Visible Light Photocatalytic Degradation Activity for in situ SERS Analysis

摘要

A multifunctional Cu2O/Ag micro-nanocomposite,which has the characteristics of high catalytic activities under the visible light and high surface-enhanced Raman scattering (SERS) activity,was fabricated via a facile method and employed for the in situ SERS monitoring of the photocatalytic degradation reaction of crystal violet.Through the variation of the AgNO3 concentration,Ag content on the Cu2O template can be controllably tuned,which has great influence on the SERS effect.The results indicate that Ag nanoparticles form on the Cu2O nanoframes to obtain the Cu2O/Ag nanocomposite,which can act as an excellent bifunctional platform for in situ monitoring of photocatalytic degradation of organic pollutions by SERS.