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Chemija / Chemistry

ISSN 0235-7216
ISSN 2424-4538 (online)

2013 m. Nr. 2

Photoelectrochemical activity of electrophoretically deposited zinc oxide coatings on stainless steel substrates
Algimantas IVANAUSKAS, Agnė ŠULČIŪTĖ, Eugenijus VALATKA

Highly photoactive zinc oxide (ZnO) coatings on AISI 304 type stainless steel were formed by electrophoretic deposition using methanol solutions. The prepared coatings were characterized by X-ray diffraction (XRD), Fourier-transform infrared (FTIR) spectroscopy and photovoltammetry analysis. The influence of deposition time and voltage on the amount of immobilized ZnO was experimentally studied. The photoelectrochemical performance of the prepared coatings was evaluated in 0.1 M Na2SO4 aqueous solutions containing various concentrations of glycerol. The obtained experimental results show that the highest photoelectrochemical activity is characteristic of the coatings annealed at 573–673 K. It was established that the steady state photocurrent decreases as a concentration of glycerol increases.

Keywords: photoelectrochemical activity, electrophoretic deposition, zinc oxide

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