Photoreduction of graphite oxide at different temperatures

Abstract

The photoreduction of graphite oxide in a film exposed to UV light is investigated at 77 K and at room temperature. At a temperature of 77 K, the photodissociation of oxygen-containing groups and graphite oxide (GO) reduction occurs that is observed in the UV-vis and Raman absorption spectra. The mechanism of photoreduction is proposed, and a comparison of the photoreduction and the thermal process is carried out.