Adsortion of lead onto Xanthated modified Rubber (Hevea Brasiliensis) 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 experiments. Pb(II) adsorption efficiency was found to be affected by several physicochemical parameters such as adsorbent dosage...

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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:	Conference or Workshop Item
Language:	English
Published:	Asian Network for Scientific Information 2011
Subjects:	QD Chemistry
Online Access:	http://irep.iium.edu.my/8033/ http://irep.iium.edu.my/8033/1/KHALIR_ET_AL_110811.pdf

id	iium-8033
recordtype	eprints
spelling	iium-80332013-08-03T23:27:21Z http://irep.iium.edu.my/8033/ Adsortion of lead onto Xanthated modified Rubber (Hevea Brasiliensis) 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 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) increased with increasing agitation rate but decreased with increasing adsorbent dosage and temperature. Thermodynamic parameters such as enthalpy change (ΔHº), free energy change (ΔGº) and entropy change (ΔSº) 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 > 0.95. Key words: Adsorption; Lead; Rubber leaf powder; Thermodynamic; Xanthation Asian Network for Scientific Information 2011 Conference or Workshop Item PeerReviewed application/pdf en http://irep.iium.edu.my/8033/1/KHALIR_ET_AL_110811.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 (2011) Adsortion of lead onto Xanthated modified Rubber (Hevea Brasiliensis) powder. In: ICCEIB -SOMChE 2011, 28 Nov. - 1 Dec., 2011, Universiti Malaysia Pahang.
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 Adsortion of lead onto Xanthated modified Rubber (Hevea Brasiliensis) 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 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) increased with increasing agitation rate but decreased with increasing adsorbent dosage and temperature. Thermodynamic parameters such as enthalpy change (ΔHº), free energy change (ΔGº) and entropy change (ΔSº) 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 > 0.95. Key words: Adsorption; Lead; Rubber leaf powder; Thermodynamic; Xanthation
format	Conference or Workshop Item
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	Adsortion of lead onto Xanthated modified Rubber (Hevea Brasiliensis) powder
title_short	Adsortion of lead onto Xanthated modified Rubber (Hevea Brasiliensis) powder
title_full	Adsortion of lead onto Xanthated modified Rubber (Hevea Brasiliensis) powder
title_fullStr	Adsortion of lead onto Xanthated modified Rubber (Hevea Brasiliensis) powder
title_full_unstemmed	Adsortion of lead onto Xanthated modified Rubber (Hevea Brasiliensis) powder
title_sort	adsortion of lead onto xanthated modified rubber (hevea brasiliensis) powder
publisher	Asian Network for Scientific Information
publishDate	2011
url	http://irep.iium.edu.my/8033/ http://irep.iium.edu.my/8033/1/KHALIR_ET_AL_110811.pdf
first_indexed	2023-09-18T20:17:38Z
last_indexed	2023-09-18T20:17:38Z
_version_	1777407894627549184

Adsortion of lead onto Xanthated modified Rubber (Hevea Brasiliensis) powder

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