Non-equilibrium effects in liquid-solid chromatography and flow sorption microcalorimetry

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8 Citations (Scopus)

Abstract

Several flow techniques were studied to obtain adsorption and enthalpy data at liquid/solid interfaces. n-Butanol (solute), water (solvent) and graphitized Printex-300 carbon black (adsorbent) were selected for use. Adsorption and desorption paths in the one-step and step-by-step (cumulative) methods were investigated. Although the adsorption-displacement process was found to be reversible in nature, the adsorption and enthalpy curves of the one-step method eventually lie well above or below the corresponding cumulative isotherms due to non-equilibrium effects occurring in the onestep experiments.

Original languageEnglish
Pages (from-to)68-74
Number of pages7
JournalProgress in Colloid and Polymer Science
Volume83
DOIs
Publication statusPublished - Jan 1 1990

Keywords

  • Adsorption from solution
  • Enthalpy of displacement
  • Flow calorimetry
  • Liquid chromatography

ASJC Scopus subject areas

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

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