Review of second-order models for adsorption systems

Yuh Shan Ho

Research output: Contribution to journalArticle

2259 Citations (Scopus)

Abstract

Applications of second-order kinetic models to adsorption systems were reviewed. An overview of second-order kinetic expressions is described in this paper based on the solid adsorption capacity. An early empirical second-order equation was applied in the adsorption of gases onto a solid. A similar second-order equation was applied to describe ion exchange reactions. In recent years, a pseudo-second-order rate expression has been widely applied to the adsorption of pollutants from aqueous solutions onto adsorbents. In addition, the earliest rate equation based on the solid adsorption capacity is also presented in detail.

Original languageEnglish
Pages (from-to)681-689
Number of pages9
JournalJournal of Hazardous Materials
Volume136
Issue number3
DOIs
Publication statusPublished - Aug 25 2006

Fingerprint

Adsorption
adsorption
kinetics
Kinetics
Ion Exchange
Adsorbents
ion exchange
Ion exchange
aqueous solution
Gases
pollutant
gas
rate

Keywords

  • Biosorption
  • Kinetics
  • Pseudo-second-order
  • Second-order
  • Sorption

ASJC Scopus subject areas

  • Chemical Health and Safety
  • Process Chemistry and Technology
  • Safety, Risk, Reliability and Quality
  • Environmental Engineering

Cite this

Review of second-order models for adsorption systems. / Ho, Yuh Shan.

In: Journal of Hazardous Materials, Vol. 136, No. 3, 25.08.2006, p. 681-689.

Research output: Contribution to journalArticle

Ho, Yuh Shan. / Review of second-order models for adsorption systems. In: Journal of Hazardous Materials. 2006 ; Vol. 136, No. 3. pp. 681-689.
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