M
Maria Cristina Paganini
Researcher at University of Turin
Publications - 122
Citations - 5969
Maria Cristina Paganini is an academic researcher from University of Turin. The author has contributed to research in topics: Electron paramagnetic resonance & Photocatalysis. The author has an hindex of 33, co-authored 109 publications receiving 5240 citations. Previous affiliations of Maria Cristina Paganini include Polytechnic University of Turin & University of Milan.
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N-doped TiO2: Theory and experiment
Cristiana Di Valentin,Emanuele Finazzi,Gianfranco Pacchioni,Annabella Selloni,Stefano Livraghi,Maria Cristina Paganini,Elio Giamello +6 more
TL;DR: In this article, electron paramagnetic resonance (EPR) spectra were used to study the properties of N-atom impurities in TiO2 under irradiation with visible light and showed that the Nb centers are responsible for visible light absorption with promotion of electrons from the localized N-impurity states to the conduction band or to electron scavengers.
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Origin of photoactivity of nitrogen-doped titanium dioxide under visible light.
Stefano Livraghi,Maria Cristina Paganini,Elio Giamello,Annabella Selloni,Cristiana Di Valentin,Gianfranco Pacchioni +5 more
TL;DR: These results provide a characterization of the electronic states associated with N impurities in TiO2 and, for the first time, a picture of the processes occurring in the solid under irradiation with visible light.
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Generation of superoxide ions at oxide surfaces
TL;DR: The superoxide radical anion O2- is both an important intermediate in heterogeneous catalytic oxidation and a useful probe for positive charges in ionic solids, such as metal oxides and zeolites as mentioned in this paper.
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The nature of paramagnetic species in nitrogen doped TiO2 active in visible light photocatalysis
TL;DR: Nitrogen doped TiO2, a novel photocatalyst active in the decomposition of organic pollutants using visible light, contains two different types of paramagnetic centres (neutral NO radicals and NO2(2-) type radical ions respectively) which are likely related to specific properties of the solid.
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Charge trapping in TiO2 polymorphs as seen by Electron Paramagnetic Resonance spectroscopy
TL;DR: Electron Paramagnetic Resonance techniques have been employed to investigate charge carrier trapping in the two main TiO2 polymorphs, anatase and rutile, with particular attention to the features of electron trapping sites.