Synthesis and Characterization of Rutile TiO2Nanopowders Doped with Iron Ions
1 Vinča Institute of Nuclear Sciences, P.O. Box 522, Belgrade, 11000, Serbia
2 ENEA, UTS MAT, Brindisi Research Centre, S.S.7 Appia, Brindisi, 72100, Italy
3 Department of Chemistry, Faculty of Sciences, University of Novi Sad, Trg D. Obradovića 3, Novi Sad, 21000, Serbia
Nanoscale Research Letters 2009, 4:518-525 doi:10.1007/s11671-009-9274-1Published: 28 February 2009
Titanium dioxide nanopowders doped with different amounts of Fe ions were prepared by coprecipitation method. Obtained materials were characterized by structural (XRD), morphological (TEM and SEM), optical (UV/vis reflection and photoluminescence, and Raman), and analytical techniques (XPS and ICP-OES). XRD analysis revealed rutile crystalline phase for doped and undoped titanium dioxide obtained in the same manner. Diameter of the particles was 5–7 nm. The presence of iron ions was confirmed by XPS and ICP-OES. Doping process moved absorption threshold of TiO2into visible spectrum range. Photocatalytic activity was also checked. Doped nanopowders showed normal and up-converted photoluminescence.