The electronic origin of the visible-light absorption properties of C-, N- and S-doped TiO2 nanomaterials.
The origin of the visible-light absorption of main-group element (C, N, S) doped TiO2 nanostructures is investigated via diffuse reflectance and valence band X-ray photoelectron spectroscopy. The synthesized C-, N-, and S-doped titania nanomaterials show an increased electron density of states above the valence band of TiO2, which explains the red-shifted light absorption of these potential photocatalysts and simultaneously suggests a lowered potential as photooxidants compared to Degussa P25 TiO2.
Chen
Xiaobo
X
Center for Chemical Dynamics & Nanomaterials Research Department of Chemistry, Case Western Reserve University, Cleveland, Ohio 44106, USA.
Burda
Clemens
C