Adsorption phenomenon and thermodynamic parameters - Couverture souple

Rafatullah, Mohd.

Couverture souple

ISBN 10 : 3659340502 ISBN 13 : 9783659340505

Editeur : LAP Lambert Academic Publishing, 2013

Synopsis

This book deals with the thermodynamic parameters of the adsorption of dyes specially methylene blue (MB) on different low-cost adsorbents. The comparison of enthalpy change (ΔH°) and entropy change (ΔS°) clearly divides the adsorbents into two groups, namely, inert or inorganic and natural or lignocellulosic adsorbents. The former group follows the van’t Hoff equation and no compensation effect is required in the computation of enthalpy and entropy changes. On the other hand the second group requires the consideration of compensation effect which is generally overlooked by almost all of the authors. Although the calorimetry is the best solution to get the reliable values of thermodynamic parameters in almost all systems, a quick estimate is generally obtained from the equilibrium constant especially in adsorption studies. It might be acceptable in inorganic adsorbents due to low compensation temperature but it would be more erroneous in lignocellulosic adsorbents hence their contribution need be accounted for to get more reliable results.

A propos du livre

À propos de l?auteur

Mohd. Rafatullah is a senior lecturer in the School of Industrial Technology, Universiti Sains Malaysia, Malaysia. He obtained his M.Sc. (2003) and Ph.D. (2007) from Aligarh Muslim University, Aligarh, India. His current research interests are Adsorption and ion-exchange, Thermodynamic and Kinetic studies.

Détails de l'édition

• Éditeur: LAP Lambert Academic Publishing
• Date d'édition: 2013
• Langue: anglais
• ISBN 10: 3659340502
• ISBN 13: 9783659340505
• Reliure: Broché
• Nombre de pages: 60
• Coordonnées du fabricant: non disponible
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