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

Authors: Shunhang Wei, Shufang Chang, Jun Qian, Xiaoxiang Xu

Published: 2021-02-24

DOI: 10.1002/smll.202100084

Source: Full article

Abstract

AbstractPt and RhOx cocatalysts are selectively deposited at inner and outer surface of ZnTiO3−xNy hollow nanospheres, respectively. The resulting photocatalytic systems exhibit promising activity for photocatalytic overall water splitting with stoichiometric H2/O2 ratio under simulated solar insolation. Selective deposition of Pt and RhOx 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.