Reactive Uptake of Gaseous Sesquiterpenes on Aqueous Surfaces

2017 ◽  
Vol 121 (4) ◽  
pp. 810-818 ◽  
Author(s):  
Kohei Matsuoka ◽  
Yosuke Sakamoto ◽  
Tetsuya Hama ◽  
Yoshizumi Kajii ◽  
Shinichi Enami
Keyword(s):  
Aqueous Surfaces

scholarly journals Ionic depletion at the crystalline Gibbs layer of PEG-capped gold nanoparticle brushes at aqueous surfaces

2017 ◽  
Vol 1 (7) ◽  
Author(s):  
Wenjie Wang ◽  
Honghu Zhang ◽  
Surya Mallapragada ◽  
Alex Travesset ◽  
David Vaknin
Keyword(s):  
Gold Nanoparticle ◽  
Aqueous Surfaces

scholarly journals Pseudo steady states of HONO measured in the nocturnal marine boundary layer: a conceptual model for HONO formation on aqueous surfaces

2011 ◽  
Vol 11 (7) ◽  
pp. 3243-3261 ◽  
Author(s):  
P. Wojtal ◽  
J. D. Halla ◽  
R. McLaren
Keyword(s):  
Conceptual Model ◽  
Gas Phase ◽  
Formation Mechanism ◽  
Marine Boundary Layer ◽  
Steady States ◽  
Optical Absorption Spectroscopy ◽  
Aqueous Environment ◽  
Ambient Atmosphere ◽  
Mass Source ◽  
Aqueous Surfaces

Abstract. A complete understanding of the formation mechanism of nitrous acid (HONO) in the ambient atmosphere is complicated by a lack of understanding of processes occurring when aqueous water is present. We report nocturnal measurements of HONO, SO2 and NO2 by differential optical absorption spectroscopy over the ocean surface in a polluted marine environment. In this aqueous environment, we observed reproducible pseudo steady states (PSS) of HONO every night, that are fully formed shortly after sunset, much faster than seen in urban environments. During the PSS period, HONO is constant with time, independent of air mass source and independent of the concentration of NO2. The independence of HONO on the concentration of NO2 implies a 0° order formation process, likely on a saturated surface, with reversible partitioning of HONO to the gas phase, through vaporization and deposition to the surface. We observed median HONO/NO2 ratios starting at 0.13 at the beginning of the PSS period (with an apparent lower bound of 0.03), rising to median levels of ~0.30 at the end of the PSS period (with an upper bound >1.0). The implication of these numbers is that they suggest a common surface mechanism of HONO formation on terrestrial and aqueous surfaces, with an increase in the HONO/NO2 ratio with the amount of water available at the surface. The levels of HONO during the nocturnal PSS period are positively correlated with temperature, consistent with a partitioning of HONO from the surface to the gas phase with an apparent enthalpy of vaporization of ΔHSNL (HONO)=55.5±5.4 kJ mol−1. The formation mechanism on aqueous surfaces is independent of relative humidity (RH), despite observation of a negative HONO-RH correlation. A conceptual model for HONO formation on ambient aqueous surfaces is presented, with the main elements being the presence of a surface nanolayer (SNL), highly acidic and saturated with N(IV) precursors, production of HNO3, that diffuses to underlying water layers, and HONO, which partitions reversibly between the SNL and the gas phase. Implications of the conceptual model are discussed.

Uptake of the NO 3 Radical on Aqueous Surfaces

2005 ◽  
Vol 52 (1) ◽  
pp. 1-18 ◽  
Author(s):  
Matthias Schütze ◽  
Hartmut Herrmann
Keyword(s):  
Aqueous Surfaces

Sink or Surf: Atmospheric Implications for Succinic Acid at Aqueous Surfaces

2013 ◽  
Vol 117 (33) ◽  
pp. 7887-7903 ◽  
Author(s):  
Patrick G. Blower ◽  
Stephanie T. Ota ◽  
Nicholas A. Valley ◽  
Suzannah R. Wood ◽  
Geraldine L. Richmond
Keyword(s):  
Succinic Acid ◽  
Aqueous Surfaces

Reactive Uptake of Cl2(g) and Br2(g) by Aqueous Surfaces as a Function of Br- and I- Ion Concentration: The Effect of Chemical Reaction at the Interface

1995 ◽  
Vol 99 (21) ◽  
pp. 8768-8776 ◽  
Author(s):  
J. H. Hu ◽  
Q. Shi ◽  
P. Davidovits ◽  
D. R. Worsnop ◽  
M. S. Zahniser ◽  
...  
Keyword(s):  
Chemical Reaction ◽  
Ion Concentration ◽  
Aqueous Surfaces
Sign in / Sign up

Export Citation Format

Share Document