Immersional wetting and adsorption displacement on hydrophilic/hydrophobic surfaces

Research output: Contribution to journalArticle

52 Citations (Scopus)

Abstract

Adsorption excess isotherms were determined on planar surfaces and porous adsorbents in methanol-benzene and benzene-n-heptane mixtures. These functions give Δ21G = f(x1) adsorption displacement free energy functions, which are characteristic of the polarities of the surfaces. Adsorption displacement enthalpy isotherms were also determined through immersion wetting and flow microcalorimetry measurements and, thus, entropy changes could be calculated as well. New equations are given for molar adsorption displacement energy and adsorption capacity calculations via the combination of enthalpy and free energy isotherms with adsorption excess isotherms.

Original languageEnglish
Pages (from-to)119-128
Number of pages10
JournalJournal of Colloid and Interface Science
Volume147
Issue number1
DOIs
Publication statusPublished - 1991

Fingerprint

wetting
Wetting
Adsorption
adsorption
isotherms
Benzene
Adsorption isotherms
Free energy
Isotherms
Enthalpy
Heptane
Flow measurement
enthalpy
free energy
benzene
Adsorbents
Methanol
Entropy
flow measurement
heptanes

ASJC Scopus subject areas

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

Cite this

@article{b5a92a13f41a4d54a50d57c6c963bc18,
title = "Immersional wetting and adsorption displacement on hydrophilic/hydrophobic surfaces",
abstract = "Adsorption excess isotherms were determined on planar surfaces and porous adsorbents in methanol-benzene and benzene-n-heptane mixtures. These functions give Δ21G = f(x1) adsorption displacement free energy functions, which are characteristic of the polarities of the surfaces. Adsorption displacement enthalpy isotherms were also determined through immersion wetting and flow microcalorimetry measurements and, thus, entropy changes could be calculated as well. New equations are given for molar adsorption displacement energy and adsorption capacity calculations via the combination of enthalpy and free energy isotherms with adsorption excess isotherms.",
author = "I. D{\'e}k{\'a}ny and L. Nagy",
year = "1991",
doi = "10.1016/0021-9797(91)90140-4",
language = "English",
volume = "147",
pages = "119--128",
journal = "Journal of Colloid and Interface Science",
issn = "0021-9797",
publisher = "Academic Press Inc.",
number = "1",

}

TY - JOUR

T1 - Immersional wetting and adsorption displacement on hydrophilic/hydrophobic surfaces

AU - Dékány, I.

AU - Nagy, L.

PY - 1991

Y1 - 1991

N2 - Adsorption excess isotherms were determined on planar surfaces and porous adsorbents in methanol-benzene and benzene-n-heptane mixtures. These functions give Δ21G = f(x1) adsorption displacement free energy functions, which are characteristic of the polarities of the surfaces. Adsorption displacement enthalpy isotherms were also determined through immersion wetting and flow microcalorimetry measurements and, thus, entropy changes could be calculated as well. New equations are given for molar adsorption displacement energy and adsorption capacity calculations via the combination of enthalpy and free energy isotherms with adsorption excess isotherms.

AB - Adsorption excess isotherms were determined on planar surfaces and porous adsorbents in methanol-benzene and benzene-n-heptane mixtures. These functions give Δ21G = f(x1) adsorption displacement free energy functions, which are characteristic of the polarities of the surfaces. Adsorption displacement enthalpy isotherms were also determined through immersion wetting and flow microcalorimetry measurements and, thus, entropy changes could be calculated as well. New equations are given for molar adsorption displacement energy and adsorption capacity calculations via the combination of enthalpy and free energy isotherms with adsorption excess isotherms.

UR - http://www.scopus.com/inward/record.url?scp=0026253632&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0026253632&partnerID=8YFLogxK

U2 - 10.1016/0021-9797(91)90140-4

DO - 10.1016/0021-9797(91)90140-4

M3 - Article

VL - 147

SP - 119

EP - 128

JO - Journal of Colloid and Interface Science

JF - Journal of Colloid and Interface Science

SN - 0021-9797

IS - 1

ER -