Solar production of H2O2 on reduced graphene oxide–TiO2 hybrid photocatalysts consisting of earth-abundant elements only

Abstract

A superior cocatalytic behavior of reduced graphene oxide (rGO) was observed for the photocatalytic production of H₂O₂ in the TiO₂-based system. The adsorption of phosphate on TiO₂ enhanced the production of H₂O₂ up to a millimolar level. The in situ formation of cobalt phosphate on rGO/TiO₂ enabled the photocatalytic production of H₂O₂ even in the absence of organic electron donors.