In-situ TiO2-rGO nanocomposites for CO gas sensing

Abstract

TiO2-reduced graphene oxide (rGO) nanocomposites were synthesized in-situ via hydrothermal route using graphene oxide (GO), TiCl3 and ammonia solution. GO was prepared by the electrochemical exfoliation technique. The structure, phase conformation and morphology of TiO2-rGO nanocomposite were characterized using X-ray diffraction, Fourier transform infra-red spectroscopy and scanning electron microscopy. Sensing behaviour of the TiO2-rGO nanocomposite was examined under the 100 and 200 ppm of CO environment.