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Batch, column and thermodynamic of Pb(II) adsorption on xanthated rubber (Hevea brasiliensis) leaf powder

Rubber (Hevea brasiliensis) leaf powder was modified by xanthation process and its potential in removing toxic Pb(II) ion from aqueous solutions was investigated in batch and column experiments. Pb(II) adsorption efficiency was found to be affected by several physicochemical parameters such as adsor...

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Main Authors:	Wan Mohd Khalir, Wan Khaima Azira, Megat Hanafiah, Megat Ahmad Kamal, Mat So'ad, Siti Zaiton, Wan Ngah, Wan Saime, Abdul Majid, Zafri Azran
Format:	Article
Language:	English
Published:	Asian Network for Scientific Information 2012
Subjects:	QD Chemistry
Online Access:	http://irep.iium.edu.my/24504/1/J.Appl.Sciwkhaima.pdf http://irep.iium.edu.my/24504/ http://scialert.net/abstract/?doi=jas.2012.1142.1147
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spelling	my.iium.irep.245042014-11-26T05:28:24Z http://irep.iium.edu.my/24504/ Batch, column and thermodynamic of Pb(II) adsorption on xanthated rubber (Hevea brasiliensis) leaf powder Wan Mohd Khalir, Wan Khaima Azira Megat Hanafiah, Megat Ahmad Kamal Mat So'ad, Siti Zaiton Wan Ngah, Wan Saime Abdul Majid, Zafri Azran QD Chemistry Rubber (Hevea brasiliensis) leaf powder was modified by xanthation process and its potential in removing toxic Pb(II) ion from aqueous solutions was investigated in batch and column experiments. Pb(II) adsorption efficiency was found to be affected by several physicochemical parameters such as adsorbent dosage, shaking rate and temperature. The optimum adsorbent dosage was found to be at 0.02 g with more than 80% Pb(II) removal. The amount of Pb(II) adsorbed (mg g-1) increased with increasing shaking rate but decreased with increasing adsorbent dosage and temperature. Thermodynamic parameters such as enthalpy change (ΔH°), free energy change (ΔG°) and entropy change (ΔS°) were computed and Pb(II) adsorption process was found to be exothermic. Fixed-bed column fitted well the Thomas and Yoon-Nelson models with correlation coefficients of R2>0.96. Asian Network for Scientific Information 2012 Article REM application/pdf en http://irep.iium.edu.my/24504/1/J.Appl.Sciwkhaima.pdf Wan Mohd Khalir, Wan Khaima Azira and Megat Hanafiah, Megat Ahmad Kamal and Mat So'ad, Siti Zaiton and Wan Ngah, Wan Saime and Abdul Majid, Zafri Azran (2012) Batch, column and thermodynamic of Pb(II) adsorption on xanthated rubber (Hevea brasiliensis) leaf powder. Journal of Applied Sciences, 12 (11). pp. 1142-1147. ISSN 1812-5662 (O), 1812-5654 (P) http://scialert.net/abstract/?doi=jas.2012.1142.1147 10.3923/jas.2012.1142.1147
institution	Universiti Islam Antarabangsa Malaysia
building	IIUM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	International Islamic University Malaysia
content_source	IIUM Repository (IREP)
url_provider	http://irep.iium.edu.my/
language	English
topic	QD Chemistry
spellingShingle	QD Chemistry Wan Mohd Khalir, Wan Khaima Azira Megat Hanafiah, Megat Ahmad Kamal Mat So'ad, Siti Zaiton Wan Ngah, Wan Saime Abdul Majid, Zafri Azran Batch, column and thermodynamic of Pb(II) adsorption on xanthated rubber (Hevea brasiliensis) leaf powder
description	Rubber (Hevea brasiliensis) leaf powder was modified by xanthation process and its potential in removing toxic Pb(II) ion from aqueous solutions was investigated in batch and column experiments. Pb(II) adsorption efficiency was found to be affected by several physicochemical parameters such as adsorbent dosage, shaking rate and temperature. The optimum adsorbent dosage was found to be at 0.02 g with more than 80% Pb(II) removal. The amount of Pb(II) adsorbed (mg g-1) increased with increasing shaking rate but decreased with increasing adsorbent dosage and temperature. Thermodynamic parameters such as enthalpy change (ΔH°), free energy change (ΔG°) and entropy change (ΔS°) were computed and Pb(II) adsorption process was found to be exothermic. Fixed-bed column fitted well the Thomas and Yoon-Nelson models with correlation coefficients of R2>0.96.
format	Article
author	Wan Mohd Khalir, Wan Khaima Azira Megat Hanafiah, Megat Ahmad Kamal Mat So'ad, Siti Zaiton Wan Ngah, Wan Saime Abdul Majid, Zafri Azran
author_facet	Wan Mohd Khalir, Wan Khaima Azira Megat Hanafiah, Megat Ahmad Kamal Mat So'ad, Siti Zaiton Wan Ngah, Wan Saime Abdul Majid, Zafri Azran
author_sort	Wan Mohd Khalir, Wan Khaima Azira
title	Batch, column and thermodynamic of Pb(II) adsorption on xanthated rubber (Hevea brasiliensis) leaf powder
title_short	Batch, column and thermodynamic of Pb(II) adsorption on xanthated rubber (Hevea brasiliensis) leaf powder
title_full	Batch, column and thermodynamic of Pb(II) adsorption on xanthated rubber (Hevea brasiliensis) leaf powder
title_fullStr	Batch, column and thermodynamic of Pb(II) adsorption on xanthated rubber (Hevea brasiliensis) leaf powder
title_full_unstemmed	Batch, column and thermodynamic of Pb(II) adsorption on xanthated rubber (Hevea brasiliensis) leaf powder
title_sort	batch, column and thermodynamic of pb(ii) adsorption on xanthated rubber (hevea brasiliensis) leaf powder
publisher	Asian Network for Scientific Information
publishDate	2012
url	http://irep.iium.edu.my/24504/1/J.Appl.Sciwkhaima.pdf http://irep.iium.edu.my/24504/ http://scialert.net/abstract/?doi=jas.2012.1142.1147
_version_	1643608765034921984
score	13.211869

Batch, column and thermodynamic of Pb(II) adsorption on xanthated rubber (Hevea brasiliensis) leaf powder

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