The Influence of Graphene Oxide Sheets on TiO₂ Nanocomposites Thin Films Prepared by Chemical Deposition and Microwave Radiation

Abstract

The influence of graphene oxide (GO) on titanium dioxide (TiO₂) nanocomposites were prepared by a combination of chemical deposition and microwave radiation. The XRD results revealed only the anatase phase of TiO₂ without detection of GO. The oxygen functional groups and Ti-O-C were detected by FTIR, including two broad bands of G and D by Raman spectroscopy. When TiO₂ was added by GO, the energy gap of the nanocomposites was reduced, and their conductivity was improved. Raman spectroscopy and SEM certified that the TiO₂ added with GO sheets nanocomposites were composed of nanoparticles of anatase distributed across the GO sheets.

Keywords:

• Titanium dioxide-graphene oxide
• nanocomposites
• thin films
• microwave technique
• energy gap