Significantly enhanced photocatalytic performance of ZnO via graphene hybridization and the mechanism study

▶ ZnO is surface modified with graphene. ▶ The photocatalytic activity of ZnO is greatly increased by more than 3 times. ▶ The optimum loading amount of graphene is 2.0 wt%. ▶ The electronic interaction retards the recombination of photo-induced charges.