Special Issue "Physical Chemistry of the Air-Water Interface"
A special issue of Atmosphere (ISSN 2073-4433). This special issue belongs to the section "Biosphere/Hydrosphere/Land - Atmosphere Interactions".
Deadline for manuscript submissions: 15 October 2018
Prof. Dr. Agustin J. Colussi
Linde Center for Global Environmental Science, California Institute of Technology, Pasadena, CA 91125, USA
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Interests: interfacial Criegee chemistry; heterogeneous chemistry of China Haze Events; long-range ion–ion interactions at the air–water interface; properties of percolating hydrogen-bonding networks on aqueous surfaces; interfacial Fenton chemistry on aqueous organic aerosols
Interfacial water is not thin ‘water’. In the steep water density gradient present at the air–water interface (AWI), extreme anisotropy coexists with a hydrogen-bonding network constrained by the lack of inversion symmetry. These features give rise to unprecedented, unanticipated and often unimagined phenomena from what we know about bulk water. The composition of interfacial layers can also be very different from that of the bulk solutions beneath. The fascinating physical chemistry associated with these observations, however, will be not just another frontier research topic because it matters to what happens on the aerial surfaces of lungs, oceans, clouds and atmospheric aerosols. Understanding what determines the interfacial propensities of ions and molecules, how the interfacial hydrogen-bonding network mediates specific interactions between distant solutes, and how decreased hydration influences equilibria, reactivity and selectivity at the AWI are some of the outstanding issues in this field. Awareness that the AWI may appear different when probed from above and below the surface should inform the conclusions derived from future experiments. Approaches based on molecular dynamic calculations should deal with and possibly account for the collective, long-range interactions apparent in both bulk and interfacial water. Fundamental new concepts are likely to emerge from these studies.
Prof. Dr. Agustin J. Colussi
Manuscript Submission Information
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- Non-linear surface spectroscopy
- Online electrospray ionization mass spectrometry
- Cooperative effects in water
- Hydrogen bonding in interfacial water
- Interfacial atmospheric chemistry
- Interfacial chemistry of lung epithelial fluids
- Chemical equilibria in interfacial water
- Ion hydration in interfacial water
The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.
1. Tentative title: Fatty acid system proxies for marine sea spray and surface prevalence
Authors: Kim Carter; Heather Allen; et al
Affiliations: The Ohio State University
2. Tentative title: The Formation of Organosulfate from Criegee Intermediate Reactions in the Gas Phase and at the Air-Water Interface
Authors: Joseph S. Francisco et al
Affiliations: University of Nebraska - Lincoln
3. Tentative title: H3O+/OH- ions propensity and pH modulation of the 2D-HB-Network at the air-water interface by simulations and vibrational spectroscopy
Authors: Simone Pezzotti et al
Affiliations: Université d'Evry Val d'Essonne
Preliminary Abstract: We will present works that follow up our recent findings regarding the water arrangement at the neutral air-water interface (J. Phys. Chem. Lett. 2017, 8, 3133–3141), consisting in an extended 2D-HB-Network connecting the vast majority of water molecules in the interfacial layer. The change in the interfacial structure is evaluated in departing conditions from neutral pH and approaching either acid or basic conditions, by means of DFT-based MD simulations and vibrational Sum Frequency Generation (vSFG) spectroscopy. The structural changes induced by the presence of H3O+/OH- ions at the interface will be quantified in terms of the weakening/strengthening of the 2D-HB-Network formed at the air-water interface, and will be related to specific changes in the spectroscopic signatures of the interface.