Influences of Electroosmotic Flow and Boundary on the Electrophoresis of a Particle in a Charge-Regulated Pore
Date Issued
2012
Date
2012
Author(s)
Yee, Chien-Pai
Abstract
In the region of the colloid science, electrophoresis and electroosmosis both are very important electrokinetic phenomena. Therefore, the electrophoretic behavior of a sphere colloid surface with constant charge density or charge-regulation in a charge-regulated nano-channel is investigated by finite element method in this research, respectively. To simulate a case closed to the realistic circumstances, adopting the system with multiple ionic species is more suitable than it with typically binary ionic species in the electrolyte solution. Focusing on the electrophoretic behavior of this study, boundary effect, variation of the thickness of electrical double layer, variation of the electric surface potential of the particle and the channel, the interaction between the electrical double layer of the particle and that of the channel, and electroosmostic flow induced by the charged channel are utilized to discuss. This study provides some reasonable descriptions to explain the electrophoretic phenomena under this case; moreover, specialists in experiment can regard these as references to design experiments, set parameters, and explain special phenomena.
Subjects
Electrophoresis
charge-regulated system
boundary effect
electroosmosis
multiple ionic species
double layer interactions
Type
thesis
File(s)![Thumbnail Image]()
Loading...
Name
index.html
Size
23.49 KB
Format
HTML
Checksum
(MD5):6bf15fd1edfaa4d744941dca80756ff5