Synthesis and Characterization of Rutile TiO2 Nanopowders Doped with Iron Ions
Janković, Ivana A.
Bibić, Nataša M.
Šojić, Daniela V.
Abramović, Biljana F.
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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 TiO2 into visible spectrum range. Photocatalytic activity was also checked. Doped nanopowders showed normal and up-converted photoluminescence.
Keywords:Titanium dioxide / Rutile / Doping / Characterization
Source:Nanoscale Research Letters, 2009, 4, 6, 518-525
- Ministry of Science and Technological Development of the Republic of Serbia [142066, 142029]