Fig. 5: Enrichment mechanism of interfacial SO4•−.
From: Harnessing air-water interface to generate interfacial ROS for ultrafast environmental remediation

a Snapshots of AIMD simulations illustrating the transition of SO4•− from the gas phase to the liquid phase at 298 K. b Variation in free energy of SO4•− during its transfer from the gas phase to the liquid phase; c Radial distribution function (RDF, g(r)) for the H3O+-SO4•− intermediates varying with the distance between OSO4•−and HH3O+ in the liquid phase and at the interface; d Variation in the distance between OSO4•−and HH3O+ in the liquid phase and at the interface, as observed in AIMD simulations.