Hydrogenated Amorphous TiO2-x and Its High Visible Light Photoactivity.

ABSTRACT: Hydrogenated crystalline TiO2 with oxygen vacancy (OV) defect has been broadly investigated in recent years. Different from crystalline TiO2, hydrogenated amorphous TiO2-x for advanced photocatalytic applications is scarcely reported. In this work, we prepared hydrogenated amorphous TiO2-x (HA-TiO2-x) using a unique liquid plasma hydrogenation strategy, and demonstrated its highly visible-light photoactivity. Density functional theory combined with comprehensive analyses was to gain fundamental understanding of the correlation among the OV concentration, electronic band structure, photon capturing, reactive oxygen species (ROS) generation, and photocatalytic activity. One important finding was that the narrower the bandgap HA-TiO2-x possessed, the higher photocatalytic efficiency it exhibi

SUBMITTER: Feng G 

PROVIDER: S-EPMC8625909 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature