Electrical, thermal and antimicrobial properties of synthesized TiO2/rGO nanocomposites

Nanocomposites of reduced graphene oxide (rGO) with titanium dioxide (TiO2) were synthesized and characterized by XRD, SEM and FTIR. XRD spectra established the coexistence of graphene and anatase TiO2 in the samples with the average crystallite size of TiO2 ranging from 27.9 nm to 57.76 nm. SEM images show densely deposited TiO2 nanoparticles onto the graphene sheets. The as-synthesized graphene-TiO2 nanocomposites showed excellent electrical conductivity, which can be regulated by the amount of added TiO2. TGA results establish the stability of these nanocomposites at high temperatures. Further, these nanocomposites showed promising results in antimicrobial activities.