Journal
APPLIED CLAY SCIENCE
Volume 20, Issue 6, Pages 295-300Publisher
ELSEVIER
DOI: 10.1016/S0169-1317(01)00081-3
Keywords
kaolinite; adsorption; methylene blue
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Methylene blue was adsorbed on kaolin from a local deposit. The raw kaolin itself was a relatively good adsorbent. The adsorption capacity was improved by purification and by treatment with NaOH solution. Calcination of the kaolin reduced the adsorption capacity. The adsorption data could be fitted by the Freundlich and Langmuir equations. Also, the thermodynamic parameters such as DeltaH(0), DeltaS(0) and DeltaG(0) were determined. (C) 2002 Elsevier Science B.V. All rights reserved.
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