Quantification of Stern Layer Water Molecules, Total Potentials, and Energy Densities at Fused Silica:Water Interfaces for Adsorbed Alkali Chlorides, CTAB, PFOA, and PFAS

• Published in: The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory Vol. 127; no. 40; pp. 8404 - 8414
• Main Authors: Chang, HanByul, Lozier, Emilie H., Ma, Emily, Geiger, Franz M.
• Format: Journal Article
• Language: English
• Published: United States American Chemical Society 12.10.2023
• Subjects: A: Aerosols; Environmental and Atmospheric Chemistry; Astrochemistry; Chemistry; Physics

We have employed amplitude- and phase-resolved second-harmonic generation spectroscopy to investigate ion-specific effects of monovalent cations at the fused silica:water interface maintained under acidic, neutral, and alkaline conditions. We find a negligible dependence of the total potential (as n...