Preparation and photocatalytic activity of iron- modified titanium dioxide photocatalyst

• Autorzy: Lezner M. , Grabowska E. , Zaleska A.
• Języki publikacji: EN

Abstrakty

EN

Iron modified TiO2 was prepared by the sol-gel method and surface modification method followed by calcination at 400°C. Two types of titanium dioxide: TiO2 ST-01(Ishihara Sangyo Ltd., Japan;300 m2/g), and TiO2 P25 (Evonik, Germany, 50 m2/g) were used in the grinding procedure. The photocatalysts were characterized by UV-VIS absorption and BET surface area measurements. The photocatalytic activity of the obtained powders in UV-Vis and visible light was estimated by measuring the decomposition rate of phenol (0.21 mmol/dm3) in an aqueous solution. The best photoactivity under visible light was observed for iron doped TiO2 with 0.5% by grinding the TiO2 ST-01.

Słowa kluczowe

EN

photocatalysis; modified TiO2; iron nanoparticles

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Physicochemical Problems of Mineral Processing
• Rocznik: 2012
• Tom: Vol. 48, iss. 1
• Strony: 193--200
• Opis fizyczny: Bibliogr. 8 poz.

Twórcy

autor

Lezner M.

autor

Grabowska E.

autor

Zaleska A.

• Department of Chemical Technology, Faculty of Chemistry, Gdansk University of Technology, Gdansk, Poland,

Bibliografia

• 1. AMBRUS Z., BALAZS N., ALAPI T., WITTMANN G., SIPOS P., DOMBI A., MOGYOROSI K., 2008, Synthesis, structure and photocatalytic properties of Fe(III)-doped TiO2 prepared from TiCl3, Appl. Catal. B: Environ. 81, 27–37.
• 2. JIAO S., CHEN Y., XU M., ZHANG Y., WANG D., PANG G., FENG S., 2010, Fabrication and magnetic property of α-Fe2O3 nanoparticles/TiO2 nanowires hybrid structure, Matter Letter 64, 1704–1706.
• 3. LIU Y., WEI J.H., XIONG R., PAN C.X., SHI J., 2011, Enhanced visible light photocatalytic properties of Fe-doped TiO2 nanorod clusters and monodispersed nanoparticles , Appl Surf Sci 257, 8121-8126.
• 4. SHI Z., ZHANG X., YAO S., 2011, Preparation and photocatalytic activity of TiO2 nanoparticles co-doped with Fe and La. Particuology, 9, 260–264.
• 5. VALENZUELA R., FUENTES M. C., PARRA C., BAEZA J., DURAN N., SHARMA S.K., KNOBEL M., FREER J., 2009, Influence of stirring velocity on the synthesis of magnetite nanopraticles (Fe3O4) by the co-precipitation method, J. Alloy Compd. 488, 227–231.
• 6. ZBORIL R., MASHIAN M., PETRIDIS D., 2002, Iron(III) Oxides from Thermal Processes Synthesis, Structural and Magnetic Properties, Mössbauer Spectroscopy Characterization, and Applications, Chem Mater 14, 969–82.
• 7. ZHOU M., YU J., CHENG B., 2006, Effects of Fe-doping on the photocatalytic activity of mesoporous TiO2 powders prepared by an ultrasonic method, J Hazard Mater B137, 1838–1847.
• 8. ZYSLER R. D., VASQUEZ M., ARCIPRETE C., DIMITRIJEWITS M., RODRIGUEZ-SIERRA D. D, SARAGOVI C., 2001, Structure and magnetic properties of thermally treated nanohematite J Magn Magn Mater 224, 39–48.