Paper Title:
Sedimentation Properties of TiO2 Nanoparticles in Organic Solvents
  Abstract

In this study, the colloidal stability and sedimentation behavior of crystalline TiO2 particles (∼300nm) in various organic solvents have been investigated by means of a backscattered light flux profile (Turbiscan) and a zeta potential measurement. The backscattered light flux profiles revealed that the TiO2 nanoparticles were readily sedimented in water, methyl alcohol, and ethyl alcohol due to a flocculation-induced particle growth, while a particle coalescence and a sedimentation of the TiO2 nanoparticles were hardly observed in isopropyl alcohol. The measured ζ potentials verified the differences of the colloidal stabilities of the TiO2 particles in the organic solvents, showing a good correlation with the migration velocity.

  Info
Periodical
Solid State Phenomena (Volume 119)
Edited by
Chang Kyu Rhee
Pages
267-270
DOI
10.4028/www.scientific.net/SSP.119.267
Citation
S.H. Woo, M. K. Lee, C. K. Rhee, "Sedimentation Properties of TiO2 Nanoparticles in Organic Solvents", Solid State Phenomena, Vol. 119, pp. 267-270, 2007
Online since
January 2007
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$32.00
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