Effect of ionic sizes on the stability ratio of a dispersion of particles with a charge-regulated surface

機構典藏 > College of Sciences > Graduate Institute & Department of Mathematics > Journal Article > Item 987654321/41284

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Title:	Effect of ionic sizes on the stability ratio of a dispersion of particles with a charge-regulated surface
Authors:	Hsu, Jyh-ping;Huang, S. W.;曾琇瑱;Tseng, Shio-jenn
Contributors:	淡江大學數學學系
Keywords:	Ionic sizes;Colloidal dispersion;Stability ratio;Charge-regulated;Amphoteric surface
Date:	2004-04-15
Issue Date:	2010-01-28 07:11:13 (UTC+8)
Publisher:	Elsevier
Abstract:	The influence of the ionic sizes on the stability of a dispersion of particles, which have an amphoteric, charged-regulated surface, is discussed. A modified Poisson–Boltzmann equation, which takes into account the sizes of ionic species, is adopted to describe the electrical field. An extended DLVO theory, which takes into account the electrical, the van der Waals, and the hydration energies, is used to estimate the stability of a colloidal dispersion. The effects of the key parameters, including ionic strength, pH, and density of surface sites, on the behavior of problem under consideration are examined. The results obtained are qualitatively consistent with experimental findings in the literature.
Relation:	Journal of Colloid and Interface Science 272(2), pp.352-357
DOI:	10.1016/j.jcis.2003.10.007
Appears in Collections:	[Graduate Institute & Department of Mathematics] Journal Article

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