Study of the behaviour of thorium adsorption on PAN/zeolite composite adsorbent

A. Kilincarslan Kaygun, S. Akyil*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

127 Citations (Scopus)

Abstract

The adsorption behaviour of thorium from aqueous solutions by a composite adsorbent has been investigated by a batch technique. The thorium adsorption on composite adsorbent was studied as a function of initial concentration, pH, shaking time and temperature. The sorption of thorium at the determined optimum conditions follows Langmuir, Freundlich and D-R type isotherms. Langmuir constants Q = 0.04 mmol g-1 and b = 64.94 L mol-1 and of D-R parameter Xm = 0.04, β = 0.79 and of sorption energy E = 0.80 and Freundlich constants 1/n = 3.12 and cm = 0.012 mmol g-1 were evaluated. Thermodynamic parameters such as ΔH and ΔS were found to be 37.32 kJ mol-1 and 206.17 J mol-1 K-1, respectively.

Original languageEnglish
Pages (from-to)357-362
Number of pages6
JournalJournal of Hazardous Materials
Volume147
Issue number1-2
DOIs
Publication statusPublished - 17 Aug 2007
Externally publishedYes

Keywords

  • Composite adsorbent
  • Desorption
  • Sorption
  • Thermodynamic parameters
  • Thorium

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