A simple algorithm for the calculation of an approximate electrophoretic mobility of a spherical colloidal particle based on the modified Poisson-Boltzmann equation

作者：Ohshima Hiroyuki^*

来源：Colloid and Polymer Science, 2017, 295(4): 543-548.

DOI：10.1007/s00396-017-4038-4

• Electrophoretic mobility
• Modified Poisson-Boltzmann equation
• Effects of ionic size
• Spherical colloidal particle

A simple algorithm is presented for the calculation of an approximate electrophoretic mobility of a spherical colloidal particle in an electrolyte solution. The obtained expressions are based on an approximate form of the modified Poisson-Boltzmann equation taking into account the ion size effects through Carnahan-Starling activity coefficients of electrolyte ions (J Chem Phys 51:635,31). Agreement with the exact numerical results by Lopez-Garcia et al. (J Colloid Interface Sci 458:273,27) is good for most practical cases.

• 出版日期2017-4