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Kinetic adsorption of application of carbon nanotubes for Pb(II) removal from aqueous solution

Kabbashi, Nassereldeen Ahmed and Atieh, Muataz A. and Al-Mamun, Abdullah and Mirghani, Mohamed Elwathig Saeed and Alam, Md. Zahangir and Yahya, Noorahayu (2009) Kinetic adsorption of application of carbon nanotubes for Pb(II) removal from aqueous solution. Journal of Environmental Sciences-China, 21 (4). pp. 539-544. ISSN 1001-0742

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The capability of carbon nanotubes (CNTs) to adsorb lead (Pb) in aqueous solution was investigated. Batch mode adsorption experiment was conducted to determine the effects of pH, agitation speed, CNTs dosage and contact time. The removal of Pb(II) reached maximum value 85% or 83% at pH 5 or 40 mg/L of CNTs, respectively. Higher correlation coefficients from Langmuir isotherm model indicates the strong adsorptions of Pb(II) on the surface of CNTs (adsorption capacity Xm = 102.04 mg/g). The results indicates that the highest percentage removal of Pb (96.03%) can be achieved at pH 5, 40 mg/L of CNTs, contact time 80 min, and agitation speed 50 r/min.

Item Type: Article (Journal)
Additional Information: 4286/15396
Uncontrolled Keywords: lead removal; carbon nanotubes; kinetic modeling; adsorption
Subjects: T Technology > TD Environmental technology. Sanitary engineering > TD1020 Hazardous substances and their disposal
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Engineering > Department of Biotechnology Engineering
Depositing User: Dr Nassereldeen Kabbashi
Date Deposited: 22 Jan 2012 14:24
Last Modified: 05 Jan 2023 16:39
URI: http://irep.iium.edu.my/id/eprint/15396

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