Synthesis of graphene oxide-TiO₂ nanotubes-silver nanoparticles nanocomposite by gamma irradiation for antibacterial and post harvest preservation purposes

Abstract

ln this study, graphene oxide (GO)-TiO₂ nanotubes (TNTs)-silver nanoparticles (AgNPs) nano composites were synthesized under y-ray irradiation at different doses (5, 10, 15,20 and 25 kGy) from formerly synthesized GO, TNTs and AgNPs. They were then characterized by Fourier-transformed infrared (FTIR) and ultra-violet-visible (UV-Vis) spectroscopics, as well as by scanning electron (SEM) and transmission electron (TEM) microscopes. The spectral data indicated the assemblage of silver nanoparticles 011 both GO sheets and TiO₂ nanotubes, as well as the assemblage of TiO₂ nanotubes on GO sheets.