Morphology, photochemical and photocatalytic properties of nanocrystalline zinc oxide films

• Published in: Theoretical and experimental chemistry Vol. 48; no. 5; pp. 331 - 337
• Main Authors: Kozytskiy, A. V., Stroyuk, A. L., Kuchmy, S. Ya, Skorik, N. A., Moskalyuk, V. O.
• Format: Journal Article
• Language: English
• Published: Boston Springer US 01-11-2012; Springer
• Subjects: Analysis; Chemical properties; Chemistry; Chemistry and Materials Science; Chemistry/Food Science; Electrochemical reactions; Indium; Zinc oxide; electrodeposition; ZnO films; photocatalysis; gold nanoparticles; Burstein–Moss effect
• ISSN: 0040-5760; 1573-935X
• DOI: 10.1007/s11237-012-9278-2

Electrodeposition was used to obtain ZnO films on indium tin oxide (ITO) consisting of microplates with diameter 0.5-2.0 μm and thickness 50-300 nm, which, in turn, consist of two particle fractions: relatively large particles with diameter 20-40 nm and fine particles with diameter of about 5 nm. It was found that the fine particles permit these ZnO films to undergo photoinduced charging. This property of ZnO films markedly affects the kinetics of the photocatalytic reduction of NaAuCl
4
by ethanol.