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Study of Pb adsorption by carbon nanofibers (CNFs) grown on powdered activated carbon

Ahmed, Yehya M. and Al-Mamun, Abdullah and Muyibi, Suleyman Aremu and Al-Khatib, Ma An Fahmi Rashid and Jameel, Ahmed Tariq and Al-Saadi , Mohammed A. (2010) Study of Pb adsorption by carbon nanofibers (CNFs) grown on powdered activated carbon. Journal of Applied Sciences, 10 (17). pp. 1983-1986. ISSN 1812-5654

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Abstract

The sorption of lead (Pb) from aqueous solutions by using carbon nanofibers (CNFs) grown on nickel impregnated Powdered Activated Carbon (PAC) was studied. In this study, we investigated the affection of the lead initial concentration on the sorption of the heavy metal from water. The isotherm of the sorption of the heavy metal onto the nanocomposite was also studied. Firstly, the optimum pH for the sorption of the lead ions was determined. The maximum sorption capacity of the heavy metal onto the adsorbent was achieved at initial pH of 5.5. The effects of initial lead ions concentration were examined and the results showed that the adsorption capacities of the carbon nanofibers to uptake the heavy metal increased from about 16 to 89 mg g-1 with increasing the initial lead concentration from 5 to 70 mg L-1. The process sorption could be best fitted by the Langmuir isotherm. The equilibrium sorption capacities of lead ion were determined and found to be 100 mg g-1.

Item Type: Article (Journal)
Additional Information: 5174/6407
Subjects: T Technology > TP Chemical technology
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Engineering > Department of Biotechnology Engineering
Depositing User: Dr Abdullah Al Mamun
Date Deposited: 01 Dec 2011 09:52
Last Modified: 26 Jan 2012 17:29
URI: http://irep.iium.edu.my/id/eprint/6407

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