Osmotic and diffusio-osmotic flow generation at high solute concentration. I. Mechanical approaches

The Journal of Chemical Physics
Sophie MarbachLydéric Bocquet

Abstract

In this paper, we explore various forms of osmotic transport in the regime of high solute concentration. We consider both the osmosis across membranes and diffusio-osmosis at solid interfaces, driven by solute concentration gradients. We follow a mechanical point of view of osmotic transport, which allows us to gain much insight into the local mechanical balance underlying osmosis. We demonstrate in particular how the general expression of the osmotic pressure for mixtures, as obtained classically from the thermodynamic framework, emerges from the mechanical balance controlling non-equilibrium transport under solute gradients. Expressions for the rejection coefficient of osmosis and the diffusio-osmotic mobilities are accordingly obtained. These results generalize existing ones in the dilute solute regime to mixtures with arbitrary concentrations.

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Citations

Mar 30, 2018·Physical Chemistry Chemical Physics : PCCP·Haoyuan Jing, Siddhartha Das
Apr 12, 2018·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Yawei LiuDaan Frenkel
Jun 8, 2018·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Patrice Bacchin
May 8, 2019·Physical Chemistry Chemical Physics : PCCP·Patrice BacchinVincent Gerbaud
May 23, 2019·Chemical Society Reviews·Sophie Marbach, Lydéric Bocquet
Feb 10, 2020·The Journal of Chemical Physics·Sophie MarbachLydéric Bocquet
Sep 30, 2020·Proceedings of the National Academy of Sciences of the United States of America·Ian WilliamsGiuseppe Battaglia
Aug 3, 2019·The Journal of Chemical Physics·Daniel J RankinDavid M Huang
Aug 6, 2020·The Journal of Chemical Physics·Etienne Mangaud, Benjamin Rotenberg
May 22, 2017·The Journal of Chemical Physics·Hiroaki YoshidaLydéric Bocquet
Oct 21, 2020·Physical Review. E·Yakang JinZhigang Li
Jan 27, 2021·Scientific Reports·Mohammed Abdul Qadeer SiddiquiHamid Roshan
Jun 2, 2020·Langmuir : the ACS Journal of Surfaces and Colloids·Xiaoran WuHewen Liu
Jul 4, 2018·The Journal of Physical Chemistry. B·Raja Sampath MaheedharaSiddhartha Das

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