Thermodynamics of adsorption at the aqueous-air interface

Risto Pajarre (Corresponding Author), Pertti Koukkari

Research output: Contribution to journalArticleScientificpeer-review

1 Citation (Scopus)

Abstract

A thermodynamic model is presented for the aqueous–air interface. For common organic solutes a relationship between the activity coefficients in the bulk solution and on the surface layer is deduced by using the concept of a surface monolayer. This relation has enabled development of an equation expressing the air–water surface adsorption coefficient as a function of bulk activity coefficients, surface tensions, molar volumes and vapour pressures of the adsorbing species. The data for 51 compounds, including alkanes, cycloalkanes, aromatics, halogenated hydrocarbons, alcohols, ethers and esters, and ketones were used in the study.
Original languageEnglish
Pages (from-to)39 - 45
Number of pages7
JournalJournal of Colloid and Interface Science
Volume337
Issue number1
DOIs
Publication statusPublished - 2009
MoE publication typeA1 Journal article-refereed

Fingerprint

Activity coefficients
Thermodynamics
Adsorption
Air
Cycloparaffins
Halogenated Hydrocarbons
Alkanes
Ethers
Ketones
Vapor pressure
Density (specific gravity)
Paraffins
Surface tension
Monolayers
Esters
Alcohols

Keywords

  • Adsorption
  • Air-water interface
  • Monolayer model
  • Surface tension
  • Thermodynamic modeling

Cite this

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title = "Thermodynamics of adsorption at the aqueous-air interface",
abstract = "A thermodynamic model is presented for the aqueous–air interface. For common organic solutes a relationship between the activity coefficients in the bulk solution and on the surface layer is deduced by using the concept of a surface monolayer. This relation has enabled development of an equation expressing the air–water surface adsorption coefficient as a function of bulk activity coefficients, surface tensions, molar volumes and vapour pressures of the adsorbing species. The data for 51 compounds, including alkanes, cycloalkanes, aromatics, halogenated hydrocarbons, alcohols, ethers and esters, and ketones were used in the study.",
keywords = "Adsorption, Air-water interface, Monolayer model, Surface tension, Thermodynamic modeling",
author = "Risto Pajarre and Pertti Koukkari",
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language = "English",
volume = "337",
pages = "39 -- 45",
journal = "Journal of Colloid and Interface Science",
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publisher = "Elsevier",
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}

Thermodynamics of adsorption at the aqueous-air interface. / Pajarre, Risto (Corresponding Author); Koukkari, Pertti.

In: Journal of Colloid and Interface Science, Vol. 337, No. 1, 2009, p. 39 - 45.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Thermodynamics of adsorption at the aqueous-air interface

AU - Pajarre, Risto

AU - Koukkari, Pertti

PY - 2009

Y1 - 2009

N2 - A thermodynamic model is presented for the aqueous–air interface. For common organic solutes a relationship between the activity coefficients in the bulk solution and on the surface layer is deduced by using the concept of a surface monolayer. This relation has enabled development of an equation expressing the air–water surface adsorption coefficient as a function of bulk activity coefficients, surface tensions, molar volumes and vapour pressures of the adsorbing species. The data for 51 compounds, including alkanes, cycloalkanes, aromatics, halogenated hydrocarbons, alcohols, ethers and esters, and ketones were used in the study.

AB - A thermodynamic model is presented for the aqueous–air interface. For common organic solutes a relationship between the activity coefficients in the bulk solution and on the surface layer is deduced by using the concept of a surface monolayer. This relation has enabled development of an equation expressing the air–water surface adsorption coefficient as a function of bulk activity coefficients, surface tensions, molar volumes and vapour pressures of the adsorbing species. The data for 51 compounds, including alkanes, cycloalkanes, aromatics, halogenated hydrocarbons, alcohols, ethers and esters, and ketones were used in the study.

KW - Adsorption

KW - Air-water interface

KW - Monolayer model

KW - Surface tension

KW - Thermodynamic modeling

U2 - 10.1016/j.jcis.2009.05.023

DO - 10.1016/j.jcis.2009.05.023

M3 - Article

VL - 337

SP - 39

EP - 45

JO - Journal of Colloid and Interface Science

JF - Journal of Colloid and Interface Science

SN - 0021-9797

IS - 1

ER -