Electrooxidation of Se on nanodispersed films of titanium dioxide modified with ZnO and Au

Authors

  • Myroslava Plakhotna National university of “ Kyiv-Mohyla academy”
  • Vera Vorobets V.I.Vernadskii Institute of General and Inorganic Chemistry, National Academy of Sciences of Ukraine
  • Gennadii Kolbasov V.I.Vernadskii Institute of General and Inorganic Chemistry, National Academy of Sciences of Ukraine
  • Natalia Smirnova Chuiko Institute of Surface Chemistry, National Academy of Sciences of Ukraine
  • Oksana Linnik Chuiko Institute of Surface Chemistry, National Academy of Sciences of Ukraine
  • Anna Eremenko Chuiko Institute of Surface Chemistry, National Academy of Sciences of Ukraine

DOI:

https://doi.org/10.17721/fujcV5I2P56-61

Keywords:

selenium, electrooxidation, TiO2, gold nanoparticles

Abstract

Selenium electrooxidation process on TiO2 and TiO2/ZnO electrodes, modified by gold nanoparticles, was investigated in solutions of sulfuric, chloric and citric acids. It is shown that TiO2/ZnO/Au electrodes can be used as indicator electrodes at the determination of selenium by anodic stripping voltammetry method. Optimum conditions of selenium (IV) determination are: supporting solution 0,001М H2SO4, electroconcentrating potential -(1,3¸1,5) V; time of electrolysis 120 s, scanning speed of potential 20 mV/s.

References

Lingiardi V, Muzi L, Tanzilli A, Carone N. Do therapists' subjective variables impact on psychodynamic psychotherapy outcomes? A systematic literature review. Clinical Psychology & Psychotherapy 2017;:. https://doi.org/10.1002/cpp.2131

Townshend A. I.I. Nazarenko and A.N. Ermakov, Analytical Chemistry of Selenium and Tellurium. Analytica Chimica Acta 1974;71(1):230. https://doi.org/10.1016/s0003-2670(01)82897-x

Ochsenkühn-Petropoulou M, Tsopelas F. Speciation analysis of selenium using voltammetric techniques. Analytica Chimica Acta 2002;467(1-2):167-178. https://doi.org/10.1016/s0003-2670(02)00091-0

Lange B, van den Berg C. Determination of selenium by catalytic cathodic stripping voltammetry. Analytica Chimica Acta 2000;418(1):33-42. https://doi.org/10.1016/s0003-2670(00)00940-5

Wu T, Xiang W, Zhang F, Deng J. Differential anodic stripping voltammetric determination of selenium in hair and flour at a gold-film electrode. The Analyst 1988;113(9):1431. https://doi.org/10.1039/an9881301431

Andrews R, Johnson D. Voltammetric deposition and stripping of selenium(IV) at a rotating gold-disk electrode in 0.1M perchloric acid. Analytical Chemistry 1975;47(2):294-299. https://doi.org/10.1021/ac60352a005

PEREIRA C, GONZAGA F, GUARITASANTOS A, SOUZADE J. Determination of Se(IV) by anodic stripping voltammetry using gold electrodes made from recordable CDs. Talanta 2006;69(4):877-881. https://doi.org/10.1016/j.talanta.2005.11.031

Tan S, Kounaves S. Determination of Selenium(IV) at a Microfabricated Gold Ultramicroelectrode Array Using Square Wave Anodic Stripping Voltammetry. Electroanalysis 1998;10(6):364-368. https://doi.org/10.1002/(sici)1521-4109(199805)10:6<364::aid-elan364>3.0.co;2-f

Manujlov E, Gnatyuk Y, Vorobets V, Kolbasov G, Smirnova N, Eremenko A, Guobiené A, Tamulevičius S. Mesoporous TiO2 and TiO2/ZnO/Ag films: Sol-Gel Synthesis, Photoelectrochemical and Photocatalytic Properties. Sol-Gel Methods for Materials Processing 2008;:427-434. https://doi.org/10.1007/978-1-4020-8514-7_38

Smirnova N, Vorobets V, Linnik O, Manuilov E, Kolbasov G, Eremenko A. Photoelectrochemical and photocatalytic properties of mesoporous TiO2 films modified with silver and gold nanoparticles. Surface and Interface Analysis 2010;42(6-7):1205-1208. https://doi.org/10.1002/sia.3237

Smirnova N, Gnatyuk Y, Eremenko A, Kolbasov G, Vorobetz V, Kolbasova I, Linyucheva O. Photoelectrochemical characterization and photocatalytic properties of mesoporousTiO2/ZrO2films. International Journal of Photoenergy 2006;2006:1-6. https://doi.org/10.1155/ijp/2006/85469

Grundmann M. The Physics of Semiconductors. Springer-Verlag Berlin Heidelberg: Springer; 2006. 690 p. https://doi.org/10.1007/3-540-34661-9

Bryce D, Izquierdo A, De Castro M. Flow-injection anodic stripping voltammetry at a gold electrode for selenium(IV) determination. Analytica Chimica Acta 1995;308(1-3):96-101. https://doi.org/10.1016/0003-2670(94)00626-w

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Published

2017-12-30

Issue

Vol. 5 No. 2 (2017): Proceedings of the IX International scientific conference “Kyiv-Toulouse”

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Articles

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