Diffusiophoresis of a spherical particle normal to an air–water interface

• Published in: Journal of colloid and interface science Vol. 331; no. 1; pp. 227 - 235
• Main Authors: Lou, James, Shih, Chun-Yu, Lee, Eric
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier Inc 01.03.2009; Elsevier
• Subjects: Air–water interface; Chemistry; Colloidal state and disperse state; Diffusiophoresis; Electrokinetics; Exact sciences and technology; General and physical chemistry; Physical and chemical studies. Granulometry. Electrokinetic phenomena; Planar boundary; Surface physical chemistry; Diffusiophoresis; Planar boundary; Air–water interface; Electrokinetics; Gas liquid interface; Equation; Air water interface; Layer thickness; Velocity; Diffusivity; Solid; Electrolyte; Air-water interface; Spherical particle; Electrostatics; Colloid particle; Surface potential; Concentration gradient

The diffusiophoresis of a spherical colloidal particle normal to an air–water interface subject to a uniform electrolyte concentration gradient is investigated theoretically. The governing electrokinetic equations are solved numerically with a pseudo-spectral method based on Chebyshev polynomials. K...