Metal link: A strategy to combine graphene and titanium dioxide for enhanced hydrogen production

A novel strategy — metal links, which connect TiO2 and graphene to form a ternary junction (TiO2/Ag@graphene) is developed. Silver (Ag) nanoparticles not only collect and transfer photo-excited electrons from TiO2 to graphene but also harvest more photons through the effect of surface plasmon resonance (SPR). Such TiO2/Ag@graphene junctions improve the hydrogen production rate by three times with respect to the original TiO2.