Heats of immersion in monolayer adsorption from binary liquid mixtures on heterogeneous solid surfaces: Equations for excess isotherms and heats of immersion corresponding to condensation approximation and Rudzinski-Jagiello approach

W. Rudzinski, J. Zajac, I. Dékány, F. Szanto

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Equations are developed, by means of the Rudzinski-Jagiello (RJ) approach, for excess isotherms and heats of immersion in monolayer adsorption from binary solutions composed of molecules of different sizes, on heterogeneous solid surfaces. The equations are then tested by analyzing experimental excess isotherms and heats of immersion for adsorption of three binary liquid mixtures on various soilds. With the same number of parameters, the obtained fits shows an essential improvement over the agreement obtained by Condensation Approximation (CA) approach. It is shown that CA approach may lead to a serious overestimation of monolayer capacity value. The RJ approach yields also a remarkably different picture of the nonideality of the adsorbed phase.

Original languageEnglish
Pages (from-to)473-483
Number of pages11
JournalJournal of Colloid and Interface Science
Volume112
Issue number2
DOIs
Publication statusPublished - 1986

Fingerprint

solid surfaces
submerging
Isotherms
Condensation
Monolayers
isotherms
condensation
Adsorption
heat
adsorption
Liquids
liquids
approximation
Molecules
molecules
Hot Temperature

ASJC Scopus subject areas

  • Colloid and Surface Chemistry
  • Physical and Theoretical Chemistry
  • Surfaces and Interfaces

Cite this

@article{d62365ad3f2e4b1897c64af9f8e81770,
title = "Heats of immersion in monolayer adsorption from binary liquid mixtures on heterogeneous solid surfaces: Equations for excess isotherms and heats of immersion corresponding to condensation approximation and Rudzinski-Jagiello approach",
abstract = "Equations are developed, by means of the Rudzinski-Jagiello (RJ) approach, for excess isotherms and heats of immersion in monolayer adsorption from binary solutions composed of molecules of different sizes, on heterogeneous solid surfaces. The equations are then tested by analyzing experimental excess isotherms and heats of immersion for adsorption of three binary liquid mixtures on various soilds. With the same number of parameters, the obtained fits shows an essential improvement over the agreement obtained by Condensation Approximation (CA) approach. It is shown that CA approach may lead to a serious overestimation of monolayer capacity value. The RJ approach yields also a remarkably different picture of the nonideality of the adsorbed phase.",
author = "W. Rudzinski and J. Zajac and I. D{\'e}k{\'a}ny and F. Szanto",
year = "1986",
doi = "10.1016/0021-9797(86)90115-3",
language = "English",
volume = "112",
pages = "473--483",
journal = "Journal of Colloid and Interface Science",
issn = "0021-9797",
publisher = "Academic Press Inc.",
number = "2",

}

TY - JOUR

T1 - Heats of immersion in monolayer adsorption from binary liquid mixtures on heterogeneous solid surfaces

T2 - Equations for excess isotherms and heats of immersion corresponding to condensation approximation and Rudzinski-Jagiello approach

AU - Rudzinski, W.

AU - Zajac, J.

AU - Dékány, I.

AU - Szanto, F.

PY - 1986

Y1 - 1986

N2 - Equations are developed, by means of the Rudzinski-Jagiello (RJ) approach, for excess isotherms and heats of immersion in monolayer adsorption from binary solutions composed of molecules of different sizes, on heterogeneous solid surfaces. The equations are then tested by analyzing experimental excess isotherms and heats of immersion for adsorption of three binary liquid mixtures on various soilds. With the same number of parameters, the obtained fits shows an essential improvement over the agreement obtained by Condensation Approximation (CA) approach. It is shown that CA approach may lead to a serious overestimation of monolayer capacity value. The RJ approach yields also a remarkably different picture of the nonideality of the adsorbed phase.

AB - Equations are developed, by means of the Rudzinski-Jagiello (RJ) approach, for excess isotherms and heats of immersion in monolayer adsorption from binary solutions composed of molecules of different sizes, on heterogeneous solid surfaces. The equations are then tested by analyzing experimental excess isotherms and heats of immersion for adsorption of three binary liquid mixtures on various soilds. With the same number of parameters, the obtained fits shows an essential improvement over the agreement obtained by Condensation Approximation (CA) approach. It is shown that CA approach may lead to a serious overestimation of monolayer capacity value. The RJ approach yields also a remarkably different picture of the nonideality of the adsorbed phase.

UR - http://www.scopus.com/inward/record.url?scp=0022769650&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0022769650&partnerID=8YFLogxK

U2 - 10.1016/0021-9797(86)90115-3

DO - 10.1016/0021-9797(86)90115-3

M3 - Article

AN - SCOPUS:0022769650

VL - 112

SP - 473

EP - 483

JO - Journal of Colloid and Interface Science

JF - Journal of Colloid and Interface Science

SN - 0021-9797

IS - 2

ER -