Magnetic resonance study of co-modified (Co,N)-TiO2 nanocomposites
Guskos Niko,
Zolnierkiewicz Grzegorz,
Guskos Aleksander,
Typek Janusz,
Berczynski Pawel,
Dolat Diana,
Mozia Sylwia,
Aidinis Constantinos,
Morawski Antoni W.
Affiliations
Guskos Niko
Department of Solid State Physics, Faculty of Physics, University of Athens, Panepistimioupolis, GR-157 84 Athens, Greece and Department of Physics, West Pomeranian University of Technology, 48 Piastow Ave., 70-311 Szczecin, Poland
Zolnierkiewicz Grzegorz
Department of Physics, West Pomeranian University of Technology, 48 Piastow Ave., 70-311 Szczecin, Poland, Tel.: +48 91 449 4595, Fax: +48 91 449 4181
Guskos Aleksander
Department of Physics, West Pomeranian University of Technology, 48 Piastow Ave., 70-311 Szczecin, Poland, Tel.: +48 91 449 4595, Fax: +48 91 449 4181
Typek Janusz
Department of Physics, West Pomeranian University of Technology, 48 Piastow Ave., 70-311 Szczecin, Poland, Tel.: +48 91 449 4595, Fax: +48 91 449 4181
Berczynski Pawel
Department of Physics, West Pomeranian University of Technology, 48 Piastow Ave., 70-311 Szczecin, Poland, Tel.: +48 91 449 4595, Fax: +48 91 449 4181
Dolat Diana
Institute of Chemical and Environmental Engineering, West Pomeranian University of Technology, 10 Pulaskiego Str., 70-322 Szczecin, Poland
Mozia Sylwia
Institute of Chemical and Environmental Engineering, West Pomeranian University of Technology, 10 Pulaskiego Str., 70-322 Szczecin, Poland
Aidinis Constantinos
Department of Electronics-Computers-Telecommunications and Control, Faculty of Physics, University of Athens, Panepistimioupolis, GR-157 84 Athens, Greece
Morawski Antoni W.
Institute of Chemical and Environmental Engineering, West Pomeranian University of Technology, 10 Pulaskiego Str., 70-322 Szczecin, Poland
Three nCo,N-TiO2 nanocomposites (where cobalt concentration index n = 1, 5 and 10 wt %) were prepared and investigated by magnetic resonance spectroscopy at room temperature. Ferromagnetic resonance (FMR) lines of magnetic cobalt agglomerated nanoparticle were dominant in all registered spectra. The relaxation processes and magnetic anisotropy of the investigated spin system essentially depended on the concentration of cobalt ions. It is suggested that the samples contained two magnetic types of sublattices forming a strongly correlated spin system. It is suggested that the existence of strongly correlated magnetic system has an essential influence of the photocatalytic properties of the studied nanocomposites.
