Adsorption, Desorption, and Crystallization of Aqueous Solutions in Nanopores

Langmuir : the ACS Journal of Surfaces and Colloids
Piyush JainAbraham D Stroock

Abstract

Probing nanoconfined solutions in tortuous, mesoporous media is challenging because of pore size, complex pore connectivity, and the coexistence of multiple components and phases. Here, we use optical reflectance to experimentally investigate the wetting and drying of a mesoporous medium with ∼3-nm-diameter pores containing aqueous solutions of sodium chloride and lithium chloride. We show that the vapor activities (i.e., relative humidities) that correspond to optical features in the isotherms for solutions can be used to deduce the thermodynamic state of a nanoscopic solution that undergoes evaporation and crystallization upon drying and condensation and deliquescence when increasing the relative humidity. We emphasize specific equilibrium states of the system: the onset of draining during desorption and the end of filling during adsorption as well as percolation-induced scattering and crystallization. We find that theoretical arguments involving classical thermodynamics (a modified Kelvin-Laplace equation and classical nucleation theory) explain quantitatively the evolution of the optical features and thereby the state of the solution as a function of imposed vapor activity and solute concentration.

References

Aug 23, 1993·Physical Review Letters·J H PageD A Weitz
Jan 24, 2002·Ground Water·Stephen E SillimanM Th van Genuchten
Mar 24, 2005·Physical Review Letters·L A RijniersK Kopinga
Feb 25, 2010·Chemical Society Reviews·Lydéric Bocquet, Elisabeth Charlaix
Jun 18, 2011·Nanotechnology·T HumplikE N Wang
Feb 14, 2015·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Patrick Huber
May 24, 2015·The Journal of Chemical Physics·Jorge R EspinosaEduardo Sanz
Mar 6, 2014·The Journal of Physical Chemistry Letters·Julie DesarnaudNoushine Shahidzadeh
Jul 23, 2016·Soft Matter·Olivier VincentAbraham D Stroock
Jan 26, 2017·Langmuir : the ACS Journal of Surfaces and Colloids·Olivier VincentAbraham D Stroock
Jan 27, 2019·Langmuir : the ACS Journal of Surfaces and Colloids·Olivier VincentAbraham D Stroock

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

Langmuir : the ACS Journal of Surfaces and Colloids
Olivier VincentAbraham D Stroock
Langmuir : the ACS Journal of Surfaces and Colloids
Kunimitsu Morishige, Yuka Nakamura
Langmuir : the ACS Journal of Surfaces and Colloids
Olivier VincentAbraham D Stroock
© 2022 Meta ULC. All rights reserved