Nanoscale Surface Disorder for Enhanced Solar Absorption and Superior Visible-Light Photocatalytic Property in Ti-Rich BaTiO₃ Nanocrystals.

ABSTRACT: Lattice disorder has emerged as a novel strategy to realize visible-light photocatalytic activity, but many existing studies often involved reduction states simultaneously. Photocatalysts based on only the lattice disorder but without the reduction states are still quite lacking and challenging. To this end, we explored a new type of lattice disorder in terms of the surface atom nonstoichiometry strategy in BaTiO₃. Well-dispersed tetragonal BaTiO₃ nanocrystals with a uniform size (∼20 nm) and cuboid morphology were hydrothermally synthesized through controlling over t-butylamine and oleic acid. HRTEM coupled with structural evolution analysis reveals the existence of a Ti-rich layer on BaTiO₃ nanocrystals with surface atom disorder, which gives an ov

SUBMITTER: Li G 

PROVIDER: S-EPMC6648295 | biostudies-literature | 2019 Jun

REPOSITORIES: biostudies-literature