Study of photoelectrochemical water splitting using films based on deposited TiO2 nanotubes‏

Study of photoelectrochemical water splitting using films based on deposited TiO₂ nanotubes‏

Mohamad Mohsen Momeni, Yousef Ghayeb, Mina Mahvari

Abstract

TiO2 nanotubes have been synthesized by the electrochemical anodizing method in this work. Cobalt and iron have then been deposited on the surface of the prepared nanotubes by chemical bath deposition method. The nanostructures thus prepared have been applied as photoanodes in photoelectrochemical (PEC) water splitting to produce hydrogen. The morphology and phase structure of the synthetic samples have been investigated by field emission scanning electron microscopy (FE-SEM), X-ray diffraction (XRD) and Raman spectroscopy. The optical properties of the samples have been studied using UV–Vis diffuse reflection spectroscopy (UV–Vis DRS). The impact of cobalt and iron ratios on photocatalytic behavior of the synthetic photoelectrodes has been investigated in the photoelectrochemical water splitting process. The highest photocatalytic activity has been shown by sample T3 …

Applied Physics A