Selective Cocatalyst Deposition on ZnTiO <sub>3−</sub> <i> <sub>x</sub> </i> N <i> <sub>y</sub> </i> Hollow Nanospheres with Efficient Charge Separation for Solar‐Driven Overall Water Splitting
Shunhang Wei, Shufang Chang, Jun Qian, Xiaoxiang Xu
Abstract
Abstract Pt and RhO x cocatalysts are selectively deposited at inner and outer surface of ZnTiO 3− x N y hollow nanospheres, respectively. The resulting photocatalytic systems exhibit promising activity for photocatalytic overall water splitting with stoichiometric H 2 /O 2 ratio under simulated solar insolation. Selective deposition of Pt and RhO x cocatalysts at different surfaces not only mitigates back reactions of the products but also induces strong potential gradient within nanospheres that promotes efficient dissociation and fast migration of photocarriers to the surface.
Topics & Concepts
PhotocatalysisStoichiometryDissociation (chemistry)Materials scienceWater splittingDeposition (geology)Chemical engineeringCharge carrierSurface chargeNanotechnologyAnalytical Chemistry (journal)Physical chemistryCatalysisChemistryOptoelectronicsEnvironmental chemistryPaleontologyEngineeringSedimentBiochemistryBiologyAdvanced Photocatalysis TechniquesCopper-based nanomaterials and applicationsTiO2 Photocatalysis and Solar Cells