Essential roles of defects in pure graphene/Cu2O photocatalyst

The pure graphene flakes with different abundance of defects were synthesized by CVD method to successfully prepare the graphene/Cu2O composites for the photocatalytic degradation of methyl orange (MO) under visible light irradiation. The results illustrate that catalytic activity was strongly dependent on the abundance of defects in graphene flakes. The highest activity was measured to be 80.10% in 30 min light irradiation. Furthermore, we...