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A unified perspective on preferential solvation and adsorption based on inhomogeneous solvation theory

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JournalPhysica A: Statistical Mechanics and its Applications
DateSubmitted - 8 May 2017
DateAccepted/In press - 13 Nov 2017
DateE-pub ahead of print - 21 Nov 2017
DatePublished (current) - 15 Feb 2018
Number of pages9
Pages (from-to)1988-1996
Early online date21/11/17
Original languageEnglish


How cosolvents affects solvation has been revealed through the independent determination of solute-solvent and solute-cosolvent interactions guaranteed by the phase rule. Based on the first principles of inhomogeneous solvation theory, we present here a general matrix theory encompassing both preferential solvation and surface adsorption. The central role of the stability conditions that determine how many excess numbers (surface excesses) are independently determinable, have been clarified from the first principles. The advantage of the inhomogeneous approach has been demonstrated to be in its ease in treating solvation and adsorption in a unified manner, while its disadvantage, for example in membrane dialysis experiments, can be overcome by the inhomogeneous-homogeneous conversion.

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© Elsevier Ltd., 2017. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy.

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