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Synergistic Role of B and F Dopants in Promoting the Photocatalytic Activity of Rutile TiO 2
Author(s) -
Fittipaldi Maria,
Gombac Valentina,
Gasparotto Alberto,
Deiana Chiara,
Adami Gianpiero,
Barreca Davide,
Montini Tiziano,
Martra Gianmario,
Gatteschi Dante,
Fornasiero Paolo
Publication year - 2011
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.201100254
Subject(s) - rutile , photocatalysis , x ray photoelectron spectroscopy , electron paramagnetic resonance , dopant , doping , electron paramagnetic resonance spectroscopy , materials science , trapping , photochemistry , degradation (telecommunications) , titanium dioxide , chemical engineering , chemistry , catalysis , optoelectronics , nuclear magnetic resonance , organic chemistry , physics , ecology , telecommunications , biology , computer science , engineering , metallurgy
Doping for the environment: Electron paramagnetic resonance and X‐ray photoelectron spectroscopy investigations prove—for the first time—that the proximity of surface F and surface/second layer B generates hole‐trapping species responsible for a remarkable photocatalytic activity of rutile TiO 2 , even for low‐surface‐area materials. A careful synthetic design of doped TiO 2 containing a high concentration of these species may lead to significantly enhanced performances in pollutant degradation.