Adsorption of an anionic surfactant on anionic surfaces in thepresence of mono and divalent ions
Muscovite mica is a phyllosilicate mineral with perfect basal cleavage, and because of this ability to generate atomically flat and clean surfaces mica has become a popular substrate for surface investigative techniques. The surface provides a highly charged analogue for the investigation of behaviour on clay surfaces, which are of considerable interest in a number of fields and in particular that of oil recovery. In this proposal, we request beamtime to study the adsorption behaviour of the anionic surfactant bis(2-ethylhexyl) sulfosuccinate (AOT) sodium salt on the anionic mica in the presence of different added counterions. This builds on previous work which has showed the nature of the cation to be key in determining adsorption, and will continue to investigate the issue of cation binding which has been central to many enhanced oil recovery approaches in recent years.
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Finian J Allen; CLARKE Stuart M.; GUTFREUND Philipp and TRUSCOTT Chris. (2018). Adsorption of an anionic surfactant on anionic surfaces in thepresence of mono and divalent ions. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.9-10-1545
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