A rapid hydrothermal synthesis of rare earth oxide activated y (OH) 3 and Y2O3 nanotubes

M. K. Devaraju, S. Yin, T. Sato

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41 Citations (Scopus)

Abstract

One-dimensional single crystalline rare earth ion (Tm3+, Tb +3, and Eu3+) doped Y (OH)3 nanotubes with inner diameters of 20-110nm, outer diameters of 50-140nm, and 1-5νm in length were prepared for the first time by a rapid hydrothermal method within a short reaction period (5min) at subcritical temperature (320 °C) and high pressure (about40MPa). A temperature dependent nanostructure evolution study was performed under rapid hydrothermal conditions and the effects of other processing parameters such as concentration of KOH and reaction time were found to be key parameters for the formation of highly anisotropic crystal structures of rare earth hydroxide nanotubes. Rare earth ion (Tm3+, Tb +3, and Eu3+) doped Y2O3 nanotubes can be obtained after calcinations above 450 °C. The luminescent property of rare earth doped Y2O3 nanotubes was also explored and compared with reference samples prepared via a conventional co-precipitation method.

Original languageEnglish
Article number305302
JournalNanotechnology
Volume20
Issue number30
DOIs
Publication statusPublished - 2009 Jul 30

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Electrical and Electronic Engineering

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