Electrochemical charge of silica surfaces at high ionic strength in narrow channels - Archive ouverte HAL Access content directly
Journal Articles Journal of Colloid and Interface Science Year : 2010

Electrochemical charge of silica surfaces at high ionic strength in narrow channels

(1) , (2, 3)
1
2
3

Abstract

We present a theoretical framework to calculate the electrochemical charge on silica surfaces in contact with high-ionic-strength solutions in narrow channels. Analytical results indicate that the contribution of the adsorbed metal cations to the total surface charge is not negligible when the salinity is larger than 1 mM. The electrical triple-layer model is proved much better than other models for high ionic strength. The charge regulation caused by the double-layer overlap in narrow channels will reduce the surface charge density but increase the zeta potential on silica surfaces.
Not file

Dates and versions

insu-00565378 , version 1 (12-02-2011)

Identifiers

Cite

Moran Wang, André Revil. Electrochemical charge of silica surfaces at high ionic strength in narrow channels. Journal of Colloid and Interface Science, 2010, 343, pp.381-386. ⟨10.1016/j.jcis.2009.11.039⟩. ⟨insu-00565378⟩
76 View
0 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More