Uptake coefficient of OH radical on aqueous surface

Takami, Akinori; Kato, Shungo; Shimono, Akio; Koda, Seiichiro

doi:10.1016/s0301-0104(98)00004-4

Cited by 37 publications

(41 citation statements)

References 13 publications

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“…This is consistent with recent experiments by Laskin et al (2006), who report a lower limit of 0.1 for α for OH uptake onto deliquesced NaCl particles. Takami et al (1998) report somewhat lower values for α, ranging from 0.03 to greater than 0.1 on bulk liquid surfaces. It is not clear that mass transport in this experiment has been dealt with at a sufficiently high accuracy so that unity values for α can be ruled out.…”

Section: Uptake Of Reactive Free Radical Species On Aqueous Surfacesmentioning

confidence: 94%

An overview of current issues in the uptake of atmospheric trace gases by aerosols and clouds

et al. 2010

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Abstract.A workshop was held in the framework of the ACCENT (Atmospheric Composition Change -a European Network) Joint Research Programme on "Aerosols" and the Programme on "Access to Laboratory Data". The aim of the workshop was to hold "Gordon Conference" type discussion covering accommodation and reactive uptake of water vapour and trace pollutant gases on condensed phase atmospheric materials. The scope was to review and define the current state of knowledge of accommodation coefficients for water vapour on water droplet and ice surfaces, and uptake of trace gas species on a variety of different surfaces characteristic of the atmospheric condensed phase particulate matter and cloud droplets. Twenty-six scientists participated in this Correspondence to: C. E. Kolb (kolb@aerodyne.com) meeting through presentations, discussions and the development of a consensus review.In this review we present an analysis of the state of knowledge on the thermal and mass accommodation coefficient for water vapour on aqueous droplets and ice and a survey of current state-of the-art of reactive uptake of trace gases on a range of liquid and solid atmospheric droplets and particles. The review recommends consistent definitions of the various parameters that are needed for quantitative representation of the range of gas/condensed surface kinetic processes important for the atmosphere and identifies topics that require additional research.

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Section: Uptake Of Reactive Free Radical Species On Aqueous Surfacesmentioning

confidence: 94%

An overview of current issues in the uptake of atmospheric trace gases by aerosols and clouds

et al. 2010

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“…37,38 The amount of chemical products which dissolve into the surrounding liquid in one acoustic cycle ⌬n i is calculated simply by integrating the rate of the dissolution, In the present study, the uptake coefficient is assumed as ⍜ = 0.001.…”

Section: Modelmentioning

confidence: 99%

Theoretical study of single-bubble sonochemistry

Yasui¹,

Tuziuti²,

Manickam³

et al. 2005

The Journal of Chemical Physics

160

178

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Numerical simulations of bubble oscillations in liquid water irradiated by an ultrasonic wave are performed under the experimental condition for single-bubble sonochemistry reported by Didenko and Suslick [Nature (London) 418, 394 (2002)]. The calculated number of OH radicals dissolving into the surrounding liquid from the interior of the bubble agrees sufficiently with the experimental data. OH radicals created inside a bubble at the end of the bubble collapse gradually dissolve into the surrounding liquid during the contraction phase of an ultrasonic wave although about 30% of the total amount of OH radicals that dissolve into the liquid in one acoustic cycle dissolve in 0.1 micros at around the end of the collapse. The calculated results have indicated that the oxidant produced by a bubble is not only OH radical but also O atom and H2O2. It is suggested that an appreciable amount of O atom is produced by bubbles inside a standing-wave-type sonochemical reactor filled with water in which oxygen is dissolved as in the case of air.

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“…The room temperature value is consistent with a recent experiment by Takami et al, who reported a value of 4.2 [± 2.8] × 10 -3 at 293 K. At the same time, water ice showed higher reactivity to OH uptake. 34 Cooper et al determined γ OH on water ice using their low-temperature flow tube coupled to a resonance fluorescence detector. 35 The measured uptake coefficient on fresh ice was 0.1, and it decreased over time, approaching a steady-state value of 0.03.…”

Section: (11)mentioning

confidence: 99%

Application of Chemical Ionization Mass Spectrometry to Heterogeneous Reactions of OH with Aerosols of Tropospheric Interest

Park¹

2017

Mass Spectrometry Letters

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: Studies performed on heterogeneous reactions of hydroxyl radicals (OH) in aerosol materials of tropospheric interest are presented, focusing on the chemical ionization mass spectrometric approach. Kinetic investigations of these reactions reduced deviation in the estimation of OH concentration in the troposphere by atmospheric modeling from field measurements. Recently, OH uptake was investigated under wet conditions to acquire kinetic information under more realistic conditions representative of the troposphere. The information on the mechanism and kinetics of OH uptake by tropospheric aerosol materials will contribute to the updating of atmospheric models, allowing a better understanding of the troposphere.

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Uptake coefficient of OH radical on aqueous surface

Cited by 37 publications

References 13 publications

An overview of current issues in the uptake of atmospheric trace gases by aerosols and clouds

An overview of current issues in the uptake of atmospheric trace gases by aerosols and clouds

Theoretical study of single-bubble sonochemistry

Application of Chemical Ionization Mass Spectrometry to Heterogeneous Reactions of OH with Aerosols of Tropospheric Interest

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