Please use this identifier to cite or link to this item: https://physrep.ff.bg.ac.rs/handle/123456789/1059
Title: Characterization and photocatalytic properties of tungsten doped TiO<inf>2</inf> coatings on aluminum obtained by plasma electrolytic oxidation
Authors: Tadić, N. 
Stojadinović, Stevan 
Radić, Nenad
Grbić, Boško
Vasilić, Rastko 
Keywords: Coatings;Photodegradation;Plasma electrolytic oxidation;TiO nanoparticles 2
Issue Date: 15-Nov-2016
Journal: Surface and Coatings Technology
Abstract: 
This paper presents a recent investigation of rapid deposition of TiO2 nanoparticles on aluminum by plasma electrolytic oxidation in Na2SiO3·5H2O water based electrolyte with addition of TiO2 nanoparticles and Na2WO4·2H2O. Oxide coatings were characterized by scanning electron microscopy, energy dispersive X-ray spectroscopy and grazing incidence X-ray diffraction. It was found that surface morphology, chemical and phase compositions of obtained coatings depend on electrolyte composition and processing time. The photocatalytic activity was tested by photodegrading methyl orange under simulated sunlight conditions. It was observed that photodegradation of methyl orange strongly depends on the concentration of TiO2 nanoparticles and sodium tungstate in the electrolyte and PEO treatment time. Coatings with the highest photoactivity were obtained in 4 g/L Na2SiO3·5H2O + 2 g/L Degussa P25 + 0.1 g/L Na2WO4·2H2O.
URI: https://physrep.ff.bg.ac.rs/handle/123456789/1059
ISSN: 0257-8972
DOI: 10.1016/j.surfcoat.2016.08.045
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