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/ http://irep.iium.edu.my/24504/ http://irep.iium.edu.my/24504/ http://irep.iium.edu.my/24504/1/J.Appl.Sciwkhaima.pdf

id	iium-24504
recordtype	eprints
spelling	iium-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 PeerReviewed 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
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
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/ http://irep.iium.edu.my/24504/ http://irep.iium.edu.my/24504/ http://irep.iium.edu.my/24504/1/J.Appl.Sciwkhaima.pdf
first_indexed	2023-09-18T20:36:44Z
last_indexed	2023-09-18T20:36:44Z
_version_	1777409095896137728

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

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