Surface Potential Studies on Adsorption Processes of Clay

Mar 22, 2012 - ...
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Article pubs.acs.org/JPCB

Surface Potential Studies on Adsorption Processes of Clay Nanosheets onto a Floating Molecular Film of an Amphiphilic Alkylammonium Cation Tadahito Shimada, Hiroshi Yamada, and Yasushi Umemura* Department of Applied Chemistry, National Defense Academy, Yokosuka, Kanagawa 239-8686, Japan S Supporting Information *

ABSTRACT: A floating molecular film was formed when a chloroform solution of dimethyldioctadecylammonium bromide (DMDOA+Br−) was spread on an aqueous dispersion of a clay mineral (sodium montmorillonite). At a low concentration (