Achievement of visible-light-driven Z-scheme overall water splitting using barium-modified Ta₃N₅ as a H₂-evolving photocatalyst.

ABSTRACT: Ta₃N₅ is one of the most promising photocatalyst candidates for solar water splitting, but it still remains challenging to achieve overall water splitting via Ta₃N₅-based photocatalysts regardless of whether it uses a one step or two step method. Here we will address the relatively poor photocatalytic proton reduction of Ta₃N₅ with an effort for the promotion of charge separation via barium modification. One-pot nitridation of barium nitrate-impregnated Ta₂O₅ precursor was adopted here for the synthesis of Ta₃N₅ accompanied with the creation of a Ta₃N₅/BaTaO₂N heterostructure and surface passivation. Due to the synergetic effect of the

SUBMITTER: Qi Y 

PROVIDER: S-EPMC5365062 | biostudies-literature | 2017 Jan

REPOSITORIES: biostudies-literature