Photoelectrode FTO/ Anodized TiO₂ Production and Characterization for Methylene Blue Affected Photoelectrochemical Decomposition

Title:Photoelectrode FTO/ Anodized TiO₂ Production and Characterization for Methylene Blue Affected Photoelectrochemical Decomposition

Volume: 17 Issue: 2

Author(s): Berrak Caliskan*, Enes Şayan and Hakan Kiziltas

Affiliation:

• Department of Chemical Engineering, Faculty of Engineering, Atatürk University, Erzurum, Turkey

Keywords: Anodization, electrocatalytic, FTO, photocatalytic, photoelectrocatalytic, magnetic sputtering, methylene blue, TiO₂.

Abstract:

Background: The production of thin film TiO₂ nanostructured systems for electrocatalytic, photocatalytic, and photoelectrocatalytic applications has been an essential topic in recent years. Due to the light-sensitive effect of TiO₂, it can be produced by various methods and used as a photoelectrode to remove dye. Using magnetron sputtering, Ti thin films can be deposited on different substrates and converted into transparent TiO₂ structures by electrochemical anodization.

Methods: In this study, the thin Ti film was produced using a magnetic spraying technique on the FTO substrate, and then an anodic TiO₂ structure was obtained by the anodization technique. TiO₂ films produced by the anodizing technique were used as a photoelectrode for the degradation of MB. The reactor contained 400 mL of 20 mg/L MB solution at 20 °C. The produced photoelectrode was characterized by the SEM/EDS, FTIR, XRD, and UV-Vis Spectrophotometer analyses.

Results: The EDS analysis confirmed the presence of titanium and oxygen in the FTO/ Anodized TiO₂ photoelectrode. The XRD results showed that all the peaks of the produced FTO/ Anodic TiO₂ were associated with the anatase phase of TiO₂. According to the FTIR spectroscopy, the functional groups of the anodized TiO₂ were obtained for the FTO/ Anodized TiO2. The electrocatalytic, photocatalytic, and photoelectrocatalytic degradation experiments were performed with the degradation of the dye solution of MB on the FTO/ Anodic TiO₂ photoelectrode, and the rates of dye degradation were determined as 17.12%, 64.67%, and 82.12%, respectively.

Conclusion: This study showed that the methylene blue dye of FTO/ Anodic TiO₂ is a suitable photoelectrode for electrocatalytic, photocatalytic, and photoelectrocatalytic degradation.

Cite this article as:

Caliskan Berrak*, Şayan Enes and Kiziltas Hakan, Photoelectrode FTO/ Anodized TiO₂ Production and Characterization for Methylene Blue Affected Photoelectrochemical Decomposition, Recent Innovations in Chemical Engineering 2024; 17 (2) . https://dx.doi.org/10.2174/0124055204284488240120053918