Kinetic modeling of liquid-phase adsorption of reactive dyes and metal ions on chitosan

Feng Chin Wu, Ru Ling Tseng, Ruey Shin Juang

Research output: Contribution to journalJournal Article peer-review

744 Scopus citations

Abstract

The rates of adsorption of three commercial reactive dyes and Cu(II) from water in the absence and presence of complexing agents using chitosan were measured at 30°C. Three simplified kinetic models, i.e., pseudo-first-order, pseudo-second-order, and intraparticle diffusion, were tested to investigate the adsorption mechanisms. It was shown that the adsorption of reactive dyes and Cu(II) in the absence of complexing agents could be best described by the intraparticle diffusion model, whereas that of Cu(II) in the absence of complexing agents such as EDTA, citric acid, and tartaric acid by the pseudo-second-order equation. Kinetic parameters of the three models and the normalized standard deviations between the measured and predicted results were also calculated and discussed.

Original languageEnglish
Pages (from-to)613-618
Number of pages6
JournalWater Research
Volume35
Issue number3
DOIs
StatePublished - 02 2001
Externally publishedYes

Keywords

  • Chitosan
  • Complexing agents
  • Kinetic modeling
  • Liquid-phase adsorption
  • Metal ions
  • Reactive dyes

Fingerprint

Dive into the research topics of 'Kinetic modeling of liquid-phase adsorption of reactive dyes and metal ions on chitosan'. Together they form a unique fingerprint.

Cite this