Facile fabrication, characterization, and enhanced photoelectrocatalytic degradation performance of highly oriented TiO2nanotube arrays

Qidong Zhao, Xinyong Li, Ning Wang, Yang Hou, Xie Quan, Guohua Chen

Research output: Journal article publicationJournal articleAcademic researchpeer-review

31 Citations (Scopus)

Abstract

Highly ordered TiO2nanotube arrays were successfully fabricated using ethanol and water mixture electrolytes (40 vol% ethanol and 0.2 wt% hydrofluoric acid) by a facile electrochemical anodization method. The as-prepared nanotube arrays were grown perpendicular to the titanium substrate with about 90 nm in diameter, 20 nm in wall thickness, and around 500 nm in length. The formation mechanism of the samples is briefly discussed. A blue shift in the spectrum of UV-Vis absorption was observed with respect to a piece of the sol-gel derived TiO2film. Moreover, photocurrent response and photoelectrocatalytic degradation of methyl orange under ultraviolet light irradiation were adopted to evaluate the photoelectrocatalytic properties of the TiO2nanotube arrays. We demonstrate that the highly ordered TiO2nanotube arrays possess much better photoelectrocatalytic activity than the sol-gel derived TiO2film and good stability.
Original languageEnglish
Pages (from-to)2153-2162
Number of pages10
JournalJournal of Nanoparticle Research
Volume11
Issue number8
DOIs
Publication statusPublished - 1 Nov 2009
Externally publishedYes

Keywords

  • Nanomanufacturing
  • Nanotube
  • Photocurrent
  • Photoelectrocatalytic degradation
  • Titania

ASJC Scopus subject areas

  • Bioengineering
  • Atomic and Molecular Physics, and Optics
  • Chemistry(all)
  • Modelling and Simulation
  • Materials Science(all)
  • Condensed Matter Physics

Cite this