Surface enhanced Raman scattering activity of dual-functional Fe3O4/Au composites

Fe3O4/Au composites have been successfully synthesized and characterized using TEM, XRD, and SQUID.4-Nitrothiophenol (4-NTP) was used as the probe molecule to examine the analyte-concentrating ability and SERS activity of Fe3O4/Au composite.Concentration-dependent SERS signals were modeled using the Langmuir adsorption model.