Displacement processes on hydrophilic/hydrophobic surfaces in 1-propanol-water mixtures

T. Marosi, I. Dékány, G. Lagaly

Research output: Contribution to journalArticle

40 Citations (Scopus)

Abstract

Selective adsorption of 1-propanol-water mixtures was investigated on adsorbents of various surface character. The enthalpy of displacement of 1-propanol by water was studied on graphitized PRINTEX-80, K-60 silicagel, and n-alkylammonium vermiculites. The free enthalpy and entropy isotherms of displacement were derived. The adsorption between the silicate layers of hydrophobic vermiculites was followed by x-ray measurements, and thermodynamic functions were calculated for the structural changes in the adsorption layers. Formation of alcohol-water clusters on the surfaces plays an important role.

Original languageEnglish
Pages (from-to)1136-1142
Number of pages7
JournalColloid & Polymer Science
Volume272
Issue number9
DOIs
Publication statusPublished - Sep 1994

Fingerprint

1-Propanol
Propanol
Adsorption
adsorption
Water
Enthalpy
enthalpy
water
Silicates
adsorbents
Adsorbents
Isotherms
silicates
isotherms
alcohols
Alcohols
Entropy
Thermodynamics
entropy
X rays

Keywords

  • Adsorption
  • enthalpy of displacement
  • layer silicates
  • solid-liquid interface

ASJC Scopus subject areas

  • Polymers and Plastics
  • Materials Chemistry
  • Physical and Theoretical Chemistry
  • Colloid and Surface Chemistry

Cite this

Displacement processes on hydrophilic/hydrophobic surfaces in 1-propanol-water mixtures. / Marosi, T.; Dékány, I.; Lagaly, G.

In: Colloid & Polymer Science, Vol. 272, No. 9, 09.1994, p. 1136-1142.

Research output: Contribution to journalArticle

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