Adsorption of humic acid onto chitin and chitosan

W. S. Wan Ngah, Musa Ahmad

Research output: Contribution to journalArticle

105 Citations (Scopus)

Abstract

The adsorption of humic acid onto chitin and chitosan has been investigated. The uptake of humic acid from aqueous solution was determined from changes in concentration, as measured by ultraviolet-visible spectroscopy. The decrease in humic acid removal was observed with the increase in pH. A significant uptake of humic acid on both chitin and chitosan was observed. The uptake of humic acid on chitosan was greater than that on chitin. Adsorption isothermal data could be interpreted by the Langmuir and Freundlich equation. Langmuir and Freundlich constants have been determined. The experimental data of the adsorption equilibrium from humic acid solutions correlate well with the Langmuir isotherm equation, as compared to the Freundlich isotherm equation.

Original languageEnglish
Pages (from-to)2305-2310
Number of pages6
JournalJournal of Applied Polymer Science
Volume69
Issue number12
Publication statusPublished - 19 Sep 1998
Externally publishedYes

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Humic Substances
Chitin
Chitosan
Adsorption
Isotherms
Ultraviolet visible spectroscopy

ASJC Scopus subject areas

  • Polymers and Plastics

Cite this

Wan Ngah, W. S., & Ahmad, M. (1998). Adsorption of humic acid onto chitin and chitosan. Journal of Applied Polymer Science, 69(12), 2305-2310.

Adsorption of humic acid onto chitin and chitosan. / Wan Ngah, W. S.; Ahmad, Musa.

In: Journal of Applied Polymer Science, Vol. 69, No. 12, 19.09.1998, p. 2305-2310.

Research output: Contribution to journalArticle

Wan Ngah, WS & Ahmad, M 1998, 'Adsorption of humic acid onto chitin and chitosan', Journal of Applied Polymer Science, vol. 69, no. 12, pp. 2305-2310.
Wan Ngah, W. S. ; Ahmad, Musa. / Adsorption of humic acid onto chitin and chitosan. In: Journal of Applied Polymer Science. 1998 ; Vol. 69, No. 12. pp. 2305-2310.
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