Sürdürülebilir Kalkınma Amaçları

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Araştırmacılar(2)

• Cirak, Burcu Bozkurt
• Eden, Cigdem

• ArticleAçık Erişim2021/r/ebyu/20794
  Synthesis, Characterization and Photoelectrochemical Properties of $MoS_2$ decorated $TiO_2$ Nanotubes Electrodes

  Çırak, Burcu Bozkurt; Eden, Çiğdem

  In this research, $TiO_2$/$MoS_2$nanocomposite electrodes were synthesized to investigate the photoelectrochemical performances. Firstly, $TiO_2$ nanotubes were fabricated by anodic oxidation on Ti foil. Then, $MoS_2$ nanostructures were synthesis by hydrothermal method on $TiO_2$ nanotubes. The prepared nanocomposite films were characterized by using X-Ray diffraction (XRD) and field emission scanning electron microscopy (FESEM). The transient photocurrent response was analyzed to investigate photoelectrochemical activity of electrodes. The results show that TiO2 nanotube arrays coated with $MoS_2$ nanostructure homogeneously. Furthermore, $TiO_2$/$MoS_2$ nanocomposite electrode were shown better photoelectrochemical activity then bare $TiO_2$ electrode.

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• ArticleAçık Erişim2019/r/ebyu/22242
  The Effect of Water Content on TiO2 nanotube Formation by Anodic Oxidation

  Kavakli, Ergin; Çırak, Burcu Bozkurt

  In this thesis, TiO2 nanotube arrays (TND) were grown on titanium foil using anodic oxidation (anodization) method. To understand the effect of water in the electrolyte, different amounts of water were added to the TiO2 nanotube arrays. The crystal structure and surface morphology of the obtained TiO2 nanotube arrays were examined by XRD and SEM techniques. Photo-electrocatalytic activities and electrochemical impedance spectra (EIS) of TNDs grown in electrolytes containing different water additives were investigated. As the amount of water in the electrolyte increased, the nanotube morphology deteriorated, but the crystal structure improved. Furthermore, as the water additive increased, TNDs showed better photo-electrocatalytic performance. In direct proportion to this, it was observed that the load transfer resistance on the surface of the TND decreased as the water contribution increased.

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