Please use this identifier to cite or link to this item: https://physrep.ff.bg.ac.rs/handle/123456789/1065
Title: CdS particles modified TiO<inf>2</inf> coatings formed by plasma electrolytic oxidation with enhanced photocatalytic activity
Authors: Stojadinović, Stevan 
Tadić, Nenad B. 
Radić, Nenad
Grbić, Boško
Vasilić, Rastko 
Keywords: CdS;Photocatalysis;Plasma electrolytic oxidation;TiO 2
Issue Date: 25-Jun-2018
Journal: Surface and Coatings Technology
Abstract: 
CdS particles modified anatase TiO2 photocatalysts were formed on titanium substrate by plasma electrolytic oxidation for 2 min in supporting electrolyte (10 g/L Na3PO4⋅12H2O) with addition of CdS particles in concentrations up to 8 g/L. Content of CdS particles incorporated into TiO2 coatings depends of CdS particles concentration in supporting electrolyte, while surface morphology, phase structure and absorption properties of formed coatings were not significantly influenced by the addition of CdS particles. In contrast to pure TiO2 coatings, TiO2/CdS coatings exhibit enhanced photocatalytic activity (PA) in the degradation of methyl orange, used as a model organic pollutant, under simulated solar irradiation. The highest PA was observed for TiO2/CdS coating formed in supporting electrolyte with addition of 0.4 g/L of CdS particles. Photoluminescence measurements indicate that enhanced PA is related to the reduction of the recombination rate of photogenerated electron/hole pairs as a result of TiO2 and CdS coupling.
URI: https://physrep.ff.bg.ac.rs/handle/123456789/1065
ISSN: 0257-8972
DOI: 10.1016/j.surfcoat.2018.03.080
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