Morphology modification of TiO2 nanotubes by controlling the starting material crystallite size for chemical synthesis

Jang Yul Kim, Tohru Sekino, Dong Jin Park, Shun Ichiro Tanaka

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


TiO2 nanotubes (NTs) were prepared by low-temperature chemical synthesis using anatase TiO2 particles with different crystallite sizes in a NaOH solution followed by water washing and HCl neutralization. The synthesized TiO2 NTs showed diverse morphologies depending on the starting materials. The crystallite size of TiO2 raw materials increased with an increase in annealing temperature, and larger TiO2 NTs, around 31 nm in diameter, were obtained from large raw powder with a crystallite size of 117 nm. X-ray diffraction and Raman spectroscopy revealed that the obtained TiO2 NT exhibited lower crystallinity; however, Raman vibration seems to be more likely than a rutile structure.

Original languageEnglish
Pages (from-to)2319-2327
Number of pages9
JournalJournal of Nanoparticle Research
Issue number6
Publication statusPublished - 2011 Jun


  • Crystallinity
  • Low-temperature chemical synthesis
  • Morphology
  • TiO nanotube

ASJC Scopus subject areas

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

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