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Enhanced Photoelectrochemical Cell Property from α-Fe2O3 Nanoparticle Decoration on Vertically Grown TiO2 Nanotubes Arrays

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Abstract:

TiO2 nanotube arrays decorated with α-Fe2O3 were prepared by forming a nanotube-like TiO2 film on a Ti sheet using an anodization process, followed by electrochemical deposition to decorate hematite (α-Fe2O3) nanoparticles on the TiO2 nanotube arrays. The SEM and XRD results revealed that the α-Fe2O3 nanoparticles were homogeneously embedded on the surface of the TiO2 nanotube arrays. The photoelectrochemical properties of the α-Fe2O3/TiO2 nanotube arrays as photoanode were studied by photocurrent–potential behavior in 1 M NaOH electrolyte under 100 mW/cm2 UV-Visible light irradiation. Also, the length dependence of TiO2 nanotubes and the amount dependence of α-Fe2O3 nanoparticles on the photocatalytic ability were studied and thus the optimum conditions were determined.

Keywords: APLPHA-FE2O3; HYDROGEN; PHOTOANODE; TIO2 NANOTUBE; WATER SPLITTING

Document Type: Research Article

DOI: https://doi.org/10.1166/jnn.2011.4784

Publication date: 2011-08-01

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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