Please use this identifier to cite or link to this item: https://physrep.ff.bg.ac.rs/handle/123456789/996
Title: Activation of Oxone® with plasma deposited mixed cobalt and alumina oxide for the dye degradation
Authors: Ajduković, Marija
Stojadinović, Stevan 
Marinović, Sanja
Milutinović-Nikolić, Aleksandra
Dojčinović, Biljana
Banković, Predrag
Keywords: Advanced oxidation process;Cobalt based catalyst;Plasma electrolytic oxidation;Sulfate radical
Issue Date: 15-Feb-2020
Journal: Applied Surface Science
Abstract: 
The aim of this work is to examine the possibility of the formation of cobalt doped Al2O3 coatings on aluminum substrate by plasma electrolytic oxidation process (PEO) and application of the obtained material as catalyst in the sulfate radical (SO4[rad]−) based advanced oxidation process (SR-AOP). The morphology and elemental composition, of the coatings were characterized using Scanning Electron Microscopy. The obtained material was tested as catalyst in SR-AOP in the degradation of model dye (tartrazine) in aqueous solution. Potassium peroxymonosulfate (Oxone®) was used as the source of radicals. The catalytic role of cobalt in tartrazine decolorization was tested in the catalytic system consisting of PEO cobalt doped Al2O3 coated Al plates and Oxone®. It was found that the addition of cobalt precursor into PEO electrolyte solution significantly improved the catalytic properties of obtained coatings with respect to cobalt-free Al2O3 coating and Oxone®. The influence of cobalt content in the supporting electrolyte during PEO process on the catalytic activity of the coatings, as well as Oxone® dosages in SR-AOP, were examined.
URI: https://physrep.ff.bg.ac.rs/handle/123456789/996
ISSN: 0169-4332
DOI: 10.1016/j.apsusc.2019.144144
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