On the mechanisms of ion adsorption to aqueous interfaces: air-water vs. oil-water.

ABSTRACT: The adsorption of ions to water-hydrophobe interfaces influences a wide range of phenomena, including chemical reaction rates, ion transport across biological membranes, and electrochemical and many catalytic processes; hence, developing a detailed understanding of the behavior of ions at water-hydrophobe interfaces is of central interest. Here, we characterize the adsorption of the chaotropic thiocyanate anion (SCN^-) to two prototypical liquid hydrophobic surfaces, water-toluene and water-decane, by surface-sensitive nonlinear spectroscopy and compare the results against our previous studies of SCN^- adsorption to the air-water interface. For these systems, we observe no spectral shift in the charge transfer to solvent spectrum of SCN^-, and the Gibb's free

SUBMITTER: Devlin SW 

PROVIDER: S-EPMC9586313 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature