Ctibor, P., Z. Pala and V. Stengl (2014) Photocatalytic activity of iron and sulfur-co-doped coatings prepared by plasma spraying. In Titanium Dioxide: Chemical Properties, Applications and Environmental Effects. pp. 65-73.

Abstract

Abstract: This study examines the photocatalytic activity (PCA) of coatings produced by atmospheric plasma spraying. The applied spraying tool was water-stabilized plasma gun. The TIO₂-Fe₂O₃ powders with and without Na₂SiO₃ additive were produced as agglomerates suitable for feeding into the plasma jet. The TIO₂-Fe₂O₃-Na₂SiO₃ coating was also post-treated in a furnace at 750°C for 2 hours. The composition of coatings was analyzed by X-ray diffraction. Photocatalytic degradation of butane under UV and under visible light (VIS) was quantified for all coatings. The coatings show a lamellar structure, as is typical for this process. Anatase titania from the feedstock powder was converted to rutile phase in all coatings but the doping with Na₂SiO₃ decreased the extent of this transformatuion. The coating FeT-VS was photocatalytically active especially under UV, whereas under visible light also FeT and FeT-VS-ann coatings were sufficiently active. © 2014 Nova Science Publishers, Inc.

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