Synthesis and characterization of an AgI/Ag hybrid nanocomposite with surface-enhanced Raman scattering performance and photocatalytic activity

Abstract

In this paper, a multifunctional platform for detection and degradation of prohibited colorants based on AgI/Ag hybrid nanocomposites through a facile wet-chemical route was successfully fabricated. The AgI/Ag hybrid nanocomposites were characterized by X-ray diffraction, field emission scanning electron microscopy (FESEM), high resolution transmission electron microscopy (HRTEM), energy-dispersive spectroscopy (EDS) and UV-vis diffuse reflectance spectra (DRS). The surface-enhanced Raman scattering (SERS) performance and photocatalytic activity of the AgI/Ag hybrid nanocomposites were investigated. The results showed that the AgI/Ag hybrid nanocomposites exhibit good SERS performance for malachite green (MG) and excellent photocatalytic activity of rhodamine B (RB). The proposed method has advantages in terms of providing a simple and rapid method for the sensitive analysis of prohibited additive colorants.