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A unified perspective on preferential solvation and adsorption based on inhomogeneous solvation theory
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| Journal | Physica A: Statistical Mechanics and its Applications |
|---|---|
| Date | Submitted - 8 May 2017 |
| Date | Accepted/In press - 13 Nov 2017 |
| Date | E-pub ahead of print - 21 Nov 2017 |
| Date | Published (current) - 15 Feb 2018 |
| Volume | 492 |
| Number of pages | 9 |
| Pages (from-to) | 1988-1996 |
| Early online date | 21/11/17 |
| Original language | English |
Abstract
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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