https://scholars.lib.ntu.edu.tw/handle/123456789/409435
Title: | Electrostatic interaction between a charge-regulated particle and a solid surface in electrolyte solution: effect of cationic electrolytes | Authors: | Hsu J.-P. Kuo Y.-C. Chang Y.-I. |
Keywords: | cationic electrolytes;charge-regulated particle;electrolyte solution;Electrostatic interaction;solid surface | Issue Date: | 1994 | Journal Volume: | 272 | Journal Issue: | 8 | Start page/Pages: | 946-954 | Source: | Colloid & Polymer Science | Abstract: | The effect of cations on the electrostatic interaction between a negative charge-regulated particle and a solid surface of constant negative potential in electrolyte solution is analyzed. Here, we assume that the rate of approach of a particle to a solid surface is faster than that of the dissociation of the ionogenic groups on the surface of particle. In other words, the effect of the time-dependent dissociation of ionogenic groups on the surface of a particle is taken into account. The result of the present study reveals that, although the solid surface is negatively charged, the presence of cations in the suspension medium has a negative effect on the rate of adhesion. The qualitative behaviors in the variation of the interaction force between a particle and a solid surface as a function of separation distance between them predicted by a kinetic model and the corresponding equilibrium model and constant charge density model are entirely different. The rate of approach of a particle to a solid surface is on the order (constant charge density model)>(kinetic model)>(equilibrium model). ? 1994 Steinkopff-Verlag. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/409435 | ISSN: | 0303402X | DOI: | 10.1007/BF00658892 |
Appears in Collections: | 化學工程學系 |
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