Spatially separated cocatalysts for efficient charge separation: a hollow Pt/CdS/N–ZnO/CoOx graphene microtubule with high stability for photocatalytic reactions and sustainable recycling

The spatially separated Pt/CdS/N–ZnO/CoO_x graphene microtubule (PCNZCo-GM) with double cocatalysts is prepared by a capillary action assisted hydrothermal method for enhancing charge separation efficiency and photocatalytic oxidation ability.