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Adsorption of copper solution on chitosan beads adsorbent

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Bibliographic Details
Main Author: Noor Husaiha, Hussain
Other Authors: Masitah Hasan
Format: Learning Object
Language:English
Published: Universiti Malaysia Perlis (UniMAP) 2012
Subjects:
Chitosan beads
Freundlich isotherm model
Adsorption of copper
Crab shell
Crustacean shell
Prawn shell
Copper
Online Access:http://dspace.unimap.edu.my/xmlui/handle/123456789/19594
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spelling my.unimap-195942012-06-02T06:32:09Z Adsorption of copper solution on chitosan beads adsorbent Noor Husaiha, Hussain Masitah Hasan Chitosan beads Freundlich isotherm model Adsorption of copper Crab shell Crustacean shell Prawn shell Copper Access is limited to UniMAP community. The use of waste as an adsorbent for removal of copper from aqueous solution was investigated due to its low cost value. Chitosan which was derived from crustacean shells was used in this study. The adsorption experiment was carried out at various parameters such as temperature (30-50 °C), pH (2-6), initial concentration (25-250 mg/L) and contact time. The maximum adsorption capacities of copper on chitosan beads were found to be 91.74 mg/g. The experimental data were analyzed using Langmuir and Freundlich isotherm model. Freundlich isotherm model fits the experimental data better than Langmuir isotherm. Kinetic studies showed that the adsorption followed pseudo-second-order kinetic model compare to pseudo-first-order kinetic model. Thermodynamic parameters such as free energy (∆G°), enthalpy (∆H°) and entropy (∆S°) change were computed to predict the nature of the adsorption process based on Van’t Hoff equation. The negative value of free energy (∆G°), indicates the spontaneous process while the negative value of enthalpy (∆H°) and entropy (∆S°) which is -22.13 kJ/mol and -0.067 kJ/mol indicates that the process was an exothermic and more favorable at lower temperature. The value of Arrhenius activation energy, Ea which is 16.86 kJ/mol indicates that the process was physisorption mechanism. 2012-06-02T06:32:09Z 2012-06-02T06:32:09Z 2010-04 Learning Object http://hdl.handle.net/123456789/19594 en Universiti Malaysia Perlis (UniMAP) School of Environmental Engineering
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Chitosan beads
Freundlich isotherm model
Adsorption of copper
Crab shell
Crustacean shell
Prawn shell
Copper
spellingShingle Chitosan beads
Freundlich isotherm model
Adsorption of copper
Crab shell
Crustacean shell
Prawn shell
Copper
Noor Husaiha, Hussain
Adsorption of copper solution on chitosan beads adsorbent
description Access is limited to UniMAP community.
author2 Masitah Hasan
author_facet Masitah Hasan
Noor Husaiha, Hussain
format Learning Object
author Noor Husaiha, Hussain
author_sort Noor Husaiha, Hussain
title Adsorption of copper solution on chitosan beads adsorbent
title_short Adsorption of copper solution on chitosan beads adsorbent
title_full Adsorption of copper solution on chitosan beads adsorbent
title_fullStr Adsorption of copper solution on chitosan beads adsorbent
title_full_unstemmed Adsorption of copper solution on chitosan beads adsorbent
title_sort adsorption of copper solution on chitosan beads adsorbent
publisher Universiti Malaysia Perlis (UniMAP)
publishDate 2012
url http://dspace.unimap.edu.my/xmlui/handle/123456789/19594
_version_ 1643792804875337728
score 13.222552

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