Abstract
An electron paramagnetic resonance study of nitrogen-doped TiO2 samples has been carried out in the dark and under illumination with light at different wavelengths. N· and NO· paramagnetic species were detected in the samples and their dynamics under illumination of TiO2 was investigated. Photosensitivity of the nitrogen-doped TiO2 and its photocatalytic activity under visible-light irradiation increases through the creation of additional levels in the band gap of TiO2 caused by doping.
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Konstantinova, E.A., Kokorin, A.I., Lips, K. et al. EPR study of the illumination effect on properties of paramagnetic centers in nitrogen-doped TiO2 active in visible light photocatalysis. Appl Magn Reson 35, 421–427 (2009). https://doi.org/10.1007/s00723-009-0173-5
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DOI: https://doi.org/10.1007/s00723-009-0173-5