Oriented 2.0.0 Cu2O nanoplatelets supported on few-layers graphene as efficient visible light photocatalyst for overall water splitting

Cu2O nanoplatelets with preferential 2.0.0 facet orientation supported on few layers graphene were prepared as films in a single step by pyrolysis at 900 °C under inert atmosphere of Cu2+-chitosan precursor. Cu2O¯/fl-G films exhibit a photocatalytic activity for overall water splitting of 19.5 mmol/gCu+G h. This value is about 4 orders of magnitude higher than the photocatalytic activity measured for unoriented Cu2O nanoparticles on few-layers...