title: Enhanced photocatalytic CO₂-reduction activity of anatase TiO₂ by coexposed {001} and {101} facets.
abstract: Control of TiO2 crystal facets has attracted enormous interest due to the fascinating shape-dependent photocatalytic activity of this material. In this work, the effect of the ratio of {001} and {101} facets on the photocatalytic CO2-reduction performance of anatase TiO2 is reported. A new "surface heterojunction" concept is proposed on the basis of the density functional theory (DFT) calculations to explain the difference in the photocatalytic activity of TiO2 with coexposed {001} and {101} facets.
authors.affiliation: State Key Laboratory of Advanced Technology for Material Synthesis and Processing, Wuhan University of Technology , Luoshi Road 122#, Wuhan 430070, P. R. China.
authors.forename: Jiaguo
authors.initials: J
authors.lastname: Yu
authors.forename: Jingxiang
authors.initials: J
authors.lastname: Low
authors.forename: Wei
authors.initials: W
authors.lastname: Xiao
authors.forename: Peng
authors.initials: P
authors.lastname: Zhou
authors.forename: Mietek
authors.initials: M
authors.lastname: Jaroniec