title: Synthesis of {100} facet dominant anatase TiO2 nanobelts and the origin of facet-dependent photoreactivity.
abstract: Sword-like anatase TiO2 nanobelts exposed with 78% clean {100} facets were synthesized and the facet-dependent photoreactivity of anatase TiO2 was investigated. By quantitative comparison with the reference {001} facets, the {100} facets possessed about ten-times higher active sites density than that on {001} facets, resulting in higher photoreaction efficiency. After the active sites density normalization, the {100} and {001} facets exhibited distinct wavelength-dependent photocatalytic performance, attributed to the anisotropic electronic structures in TiO2 crystals.
authors.affiliation: Education Ministry Key Laboratory of Resource Chemistry, Shanghai Normal University, Shanghai 200234 (China); Department of Chemistry, National University of Singapore, 3 science Drive 3, Singapore 117543 (Singapore); NUS Environmental Research Institute, National University of Singapore, 5 A Engineering Drive 1, Singapore 117411 (Singapore); SPURc, 1 CREATE Way, #15-01, CREATE Tower, Singapore 138602 (Singapore). chmpf@nus.edu.sg.
authors.forename: Feng
authors.initials: F
authors.lastname: Pan
authors.forename: Kai
authors.initials: K
authors.lastname: Wu
authors.forename: Hexing
authors.initials: H
authors.lastname: Li
authors.forename: Guoqin
authors.initials: G
authors.lastname: Xu
authors.forename: Wei
authors.initials: W
authors.lastname: Chen
keywords: TiO2 nanobelts; nanostructures; photochemistry; reactive sites; wavelength-dependent photoreaction