TY - JOUR
T1 - Unveiling point defects in titania mesocrystals: a combined EPR and XPS study
AU - Konstantinova, Elizaveta
AU - Minnekhanov, Anton
AU - Beltiukov, Artemii
AU - Ivanov, Vladimir
AU - Sutherland, Andrew James
AU - Boytsova, Olga
N1 - © The Royal Society of Chemistry 2018
PY - 2018/8/2
Y1 - 2018/8/2
N2 - Titania mesocrystals, prepared using a polyethylene template, were studied by a combination of electron microscopy, XPS and EPR techniques. The electronic structure and local environment of point defects in the TiO2 mesocrystals were deduced from experimental and simulated EPR data. The Ti3+/F centers and oxygen defects were shown to be the most photosensitive. The presence of carbon radicals was also demonstrated. Since the point defects govern TiO2 photosensitivity and photocatalytic activity in the visible spectral range, the data obtained provide new insights into photocatalytic reactions engineering using titania mesocrystals
AB - Titania mesocrystals, prepared using a polyethylene template, were studied by a combination of electron microscopy, XPS and EPR techniques. The electronic structure and local environment of point defects in the TiO2 mesocrystals were deduced from experimental and simulated EPR data. The Ti3+/F centers and oxygen defects were shown to be the most photosensitive. The presence of carbon radicals was also demonstrated. Since the point defects govern TiO2 photosensitivity and photocatalytic activity in the visible spectral range, the data obtained provide new insights into photocatalytic reactions engineering using titania mesocrystals
UR - http://pubs.rsc.org/en/Content/ArticleLanding/2018/NJ/C8NJ03196G#!divAbstract
U2 - 10.1039/C8NJ03196G
DO - 10.1039/C8NJ03196G
M3 - Article
SN - 1144-0546
VL - 42
SP - 15184
EP - 15189
JO - New Journal of Chemistry
JF - New Journal of Chemistry
IS - 18
ER -