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

Research output: Contribution to journalArticle

7 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 languageEnglish
Pages (from-to)7290-7293
Number of pages4
JournalJournal of Nanoscience and Nanotechnology
Volume11
Issue number8
DOIs
Publication statusPublished - 2011 Aug 1

All Science Journal Classification (ASJC) codes

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

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