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The Synthesis of TiO 2 Nanoparticles by Anodization of Ti Foil under Fenton Reaction
Current Issue
Volume 7, 2019
Issue 2 (June)
Pages: 30-35   |   Vol. 7, No. 2, June 2019   |   Follow on         
Paper in PDF Downloads: 13   Since Jun. 25, 2019 Views: 88   Since Jun. 25, 2019
Authors
[1]
Paata Nikoleishvili, Raphiel Agladze Institute of Inorganic Chemistry and Electrochemistry, Ivane Javakhishvili Tbilisi State University, Tbilisi, Georgia.
[2]
Valentina Kveselav, Raphiel Agladze Institute of Inorganic Chemistry and Electrochemistry, Ivane Javakhishvili Tbilisi State University, Tbilisi, Georgia.
[3]
Rusudan Kurtanidze, Raphiel Agladze Institute of Inorganic Chemistry and Electrochemistry, Ivane Javakhishvili Tbilisi State University, Tbilisi, Georgia.
Abstract
Anatase titanium dioxide nanoparticles were synthesis by anodization of titanium foil in sodium sulfate solution at pH 3, containing 1–5 mmol·L-1 of Fe2+ cations as a FeSO4 salt. During the anodization, from 0.05 to 0.1 mol∙L-1 H2 O2 was added dropwise to the electrolyte to performed Advanced Oxidation Processes, based on hydroxyl radical formation by H2 O2 decomposition in the presence of Fe2+ ions in acidic medium. The anodization voltage varied from 10 to 20 V. The size of the synthesized particles of TiO2 ranged from 30 to 50 nm, which the morphology and structure of which were described by scanning electron microscopy (SEM) images and XRD pattern. The photocatalytic activity of TiO2 nanoparticles, obtained by the described method was studied by using the photo-destruction reaction of the methylene blue in an aqueous solution under the influence of ultraviolet irradiation. The dye-sensitized solar cells (DSSCs) were fabricated by the obtained TiO2 and exhibited the light to electric energy conversion efficiency -5.54%, the short circuit current density - 14.3 mA∙ cm-2, the open circuit voltage - 0.72 V, and the fill factor -52.46%.
Keywords
TiO2 Nanoparticles, Dye Sensitized Solar Cells, Electrochemical Anodization, Photocatalytic Activity, Fenton Reaction
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