Enhanced photoelectrochemical cell property from α-Fe 2O 3 nanoparticle decoration on vertically grown TiO 2 nanotubes arrays

Aiming Mao; Xianhui Meng; Min Seok Kim; Ji Beom Yu; Gui Young Han; Jong Hyeok Park

doi:10.1166/jnn.2011.4784

Enhanced photoelectrochemical cell property from α-Fe ₂O ₃ nanoparticle decoration on vertically grown TiO ₂ nanotubes arrays

Aiming Mao, Xianhui Meng, Min Seok Kim, Ji Beom Yu, Gui Young Han, Jong Hyeok Park

Department of Chemical and Biomolecular Engineering

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

TiO ₂ nanotube arrays decorated with α-Fe ₂O ₃ were prepared by forming a nanotube-like TiO ₂ film on a Ti sheet using an anodization process, followed by electrochemical deposition to decorate hematite (α-Fe ₂O ₃) nanoparticles on the TiO ₂ nanotube arrays. The SEM and XRD results revealed that the α-Fe ₂O ₃ nanoparticles were homogeneously embedded on the surface of the TiO ₂ nanotube arrays. The photoelectrochemical properties of the α-Fe ₂O ₃/TiO ₂ nanotube arrays as photoanode were studied by photocurrent-potential behavior in 1 M NaOH electrolyte under 100 mW/cm ² UV-Visible light irradiation. Also, the length dependence of TiO ₂ nanotubes and the amount dependence of α-Fe ₂O ₃ nanoparticles on the photocatalytic ability were studied and thus the optimum conditions were determined.

Original language	English
Pages (from-to)	7290-7293
Number of pages	4
Journal	Journal of Nanoscience and Nanotechnology
Volume	11
Issue number	8
DOIs	https://doi.org/10.1166/jnn.2011.4784
Publication status	Published - 2011 Aug

All Science Journal Classification (ASJC) codes

Bioengineering
Chemistry(all)
Biomedical Engineering
Materials Science(all)
Condensed Matter Physics

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title = "Enhanced photoelectrochemical cell property from α-Fe 2O 3 nanoparticle decoration on vertically grown TiO 2 nanotubes arrays",

abstract = "TiO 2 nanotube arrays decorated with α-Fe 2O 3 were prepared by forming a nanotube-like TiO 2 film on a Ti sheet using an anodization process, followed by electrochemical deposition to decorate hematite (α-Fe 2O 3) nanoparticles on the TiO 2 nanotube arrays. The SEM and XRD results revealed that the α-Fe 2O 3 nanoparticles were homogeneously embedded on the surface of the TiO 2 nanotube arrays. The photoelectrochemical properties of the α-Fe 2O 3/TiO 2 nanotube arrays as photoanode were studied by photocurrent-potential behavior in 1 M NaOH electrolyte under 100 mW/cm 2 UV-Visible light irradiation. Also, the length dependence of TiO 2 nanotubes and the amount dependence of α-Fe 2O 3 nanoparticles on the photocatalytic ability were studied and thus the optimum conditions were determined.",

author = "Aiming Mao and Xianhui Meng and Kim, {Min Seok} and Yu, {Ji Beom} and Han, {Gui Young} and Park, {Jong Hyeok}",

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AU - Mao, Aiming

AU - Meng, Xianhui

AU - Kim, Min Seok

AU - Yu, Ji Beom

AU - Han, Gui Young

AU - Park, Jong Hyeok

PY - 2011/8

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N2 - TiO 2 nanotube arrays decorated with α-Fe 2O 3 were prepared by forming a nanotube-like TiO 2 film on a Ti sheet using an anodization process, followed by electrochemical deposition to decorate hematite (α-Fe 2O 3) nanoparticles on the TiO 2 nanotube arrays. The SEM and XRD results revealed that the α-Fe 2O 3 nanoparticles were homogeneously embedded on the surface of the TiO 2 nanotube arrays. The photoelectrochemical properties of the α-Fe 2O 3/TiO 2 nanotube arrays as photoanode were studied by photocurrent-potential behavior in 1 M NaOH electrolyte under 100 mW/cm 2 UV-Visible light irradiation. Also, the length dependence of TiO 2 nanotubes and the amount dependence of α-Fe 2O 3 nanoparticles on the photocatalytic ability were studied and thus the optimum conditions were determined.

AB - TiO 2 nanotube arrays decorated with α-Fe 2O 3 were prepared by forming a nanotube-like TiO 2 film on a Ti sheet using an anodization process, followed by electrochemical deposition to decorate hematite (α-Fe 2O 3) nanoparticles on the TiO 2 nanotube arrays. The SEM and XRD results revealed that the α-Fe 2O 3 nanoparticles were homogeneously embedded on the surface of the TiO 2 nanotube arrays. The photoelectrochemical properties of the α-Fe 2O 3/TiO 2 nanotube arrays as photoanode were studied by photocurrent-potential behavior in 1 M NaOH electrolyte under 100 mW/cm 2 UV-Visible light irradiation. Also, the length dependence of TiO 2 nanotubes and the amount dependence of α-Fe 2O 3 nanoparticles on the photocatalytic ability were studied and thus the optimum conditions were determined.

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Enhanced photoelectrochemical cell property from α-Fe ₂O ₃ nanoparticle decoration on vertically grown TiO ₂ nanotubes arrays

Abstract

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