Sorption kinetics for dye removal from aqueous solution using activated clay

Yuh Shan Ho, Chun Chiao Chiang, Yung Chien Hsu

Research output: Contribution to journalArticlepeer-review

185 Citations (Scopus)


The kinetics of Basic Red 18 and Acid Blue 9 sorption onto activated clay have been investigated. A batch sorption model, based on the assumption of a pseudo-second order mechanism, has been developed to predict the rate constant of sorption, the equilibrium sorption capacity, and initial sorption rate with the effect of initial dye concentration, activated clay particle size, temperature, and pH value. In addition, an activation energy of sorption has also been determined based on the pseudo-second order rate constants.

Original languageEnglish
Pages (from-to)2473-2488
Number of pages16
JournalSeparation Science and Technology
Issue number11
Publication statusPublished - 2001


  • Activated clay
  • Dye
  • Kinetics
  • Sorption

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Filtration and Separation
  • Process Chemistry and Technology
  • Chemistry(all)


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