The influence of RGO on the photocatalytic activity of RGO–TiO2 nanocomposites
has been examined systematically by considering the different
weight addition ratios of graphene. It is found that the superfluous
graphene in RGO–TiO2 nanocomposites leads to a decreased photocatalytic
activity, the features are similar to CNT–TiO2 composite.