Research Paper

Journal of Nanoparticle Research

, Volume 9, Issue 6, pp 1067-1071

Organic-ligand-assisted supercritical hydrothermal synthesis of titanium oxide nanocrystals leading to perfectly dispersed titanium oxide nanoparticle in organic phase

  • Tahereh MousavandAffiliated withInstitute of Multidisciplinary Research for Advanced Materials, Tohoku University
  • , Jing ZhangAffiliated withInstitute of Multidisciplinary Research for Advanced Materials, Tohoku University
  • , Satoshi OharaAffiliated withInstitute of Multidisciplinary Research for Advanced Materials, Tohoku University
  • , Mitsuo UmetsuAffiliated withInstitute of Multidisciplinary Research for Advanced Materials, Tohoku University
  • , Takashi NakaAffiliated withInstitute of Multidisciplinary Research for Advanced Materials, Tohoku University
  • , Tadafumi AdschiriAffiliated withInstitute of Multidisciplinary Research for Advanced Materials, Tohoku University Email author 

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Abstract

Titanium oxide (TiO2) nanocyrstals which are perfectly dispersed in organic solvents are synthesized by organic-ligand-assisted supercritical hydrothermal synthesis. The addition of hexaldehyde to the supercritical hydrothermal synthesis of TiO2 leads to the in-situ surface modification, which enables the synthsized TiO2 nanocrystals to be perfectly dispersed in iso-octane because of its hydrophobic nature. Further, the one-pot synthesis of hybrid materials results in the significant reduction of the particles size, probably due to the capping effect of hexaldehyde to suppress the particles growth.

Keywords

dispersion metal oxide mixing nanoparticle supercritical hydrothermal synthesis