Real-time determination of kinetics of adsorption of lead(II) onto palm shell-based activated carbon using ion selective electrode

Aroua, M.K. and Leong, S.P.P. and Teo, L.Y. and Yin, C.Y. and Daud, W.M.A.W. (2008) Real-time determination of kinetics of adsorption of lead(II) onto palm shell-based activated carbon using ion selective electrode. Bioresource Technology, 99 (13). pp. 5786-5792. ISSN 0960-8524, DOI

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In this study, the kinetics of adsorption of Pb(II) from aqueous solution onto palm shell-based activated carbon (PSAC) were investigated by employing ion selective electrode (ISE) for real-time Pb(II) and pH monitoring. Usage of ISE was very appropriate for real-time adsorption kinetics data collection as it facilitated recording of adsorption data at very specific and short time intervals as well as provided consistent kinetics data. Parameters studied were initial Pb(II) concentration and agitation speed. It was found that increases in initial Pb(II) concentration and agitation speed resulted in higher initial rate of adsorption. Pseudo first-order, pseudo second-order, Elovich, intraparticle diffusion and liquid film diffusion models were used to fit the adsorption kinetics data. It was suggested that chemisorption was the rate-controlling step for adsorption of Pb(II) onto PSAC since the adsorption kinetics data fitted both the pseudo second-order and Elovich models well.

Item Type: Article
Additional Information: Cited By (since 1996):57 Export Date: 21 April 2013 Source: Scopus CODEN: BIRTE :doi 10.1016/j.biortech.2007.10.010 PubMed ID: 18023577 Language of Original Document: English Correspondence Address: Aroua, M.K.; Department of Chemical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia; email: : Chemicals/CASactivated carbon, 64365-11-3, 82228-96-4; lead, 7439-92-1; Industrial Waste; Lead, 7439-92-1; Metals, Heavy References: Al-Qodah, Z., Adsorption of dyes using shale oil ash (2000) Water Res., 34 (17), pp. 4295-4303; Boyd, G.E., Adamson, A.W., Myers, L.S., The exchange adsorption of ions from aqueous solutions by organic zeolites: II. Kinetics (1947) J. Am. Chem. 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Uncontrolled Keywords: Adsorption kinetics; Ion selective electrode; Palm shell-based activated carbon; Pb(II); Activated carbon; Adsorption; Electrodes; Lead; pH effects; Reaction kinetics; aqueous solution; diffusion; electrode; pH; real time; absorption; article; concentration (parameters); priority journal; Arecaceae; Electrochemistry; Humans; Industrial Waste; Kinetics; Lead Poisoning; Malaysia; Metals; Heavy; Seeds.
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TP Chemical technology
Divisions: Faculty of Engineering
Depositing User: Mr Jenal S
Date Deposited: 17 Jul 2013 02:25
Last Modified: 08 Nov 2017 08:29

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