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Lead removal by using carbon nanotubes

Muataz, A. A. and Fettouhi, M. and Al-Mamun, Abdullah and Yahya, Noorahayu (2009) Lead removal by using carbon nanotubes. International Journal of Nanoparticles, 2 (1-6). pp. 329-338. ISSN 1753-2507

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Abstract

Exposure to lead (Pb) can cause anemia, diseases of the liver and kidneys, brain damage and ultimately death. For these reasons, heavy metals must be removed as much as possible from water. The removal of Pb (II) ions from aqueous solution using carbon nanotubes (CNT) as the adsorbent was investigated. The effects of pH were studied at 25°C. Batch mode adsorption study has revealed that the removal of Pb (II) ions was maximum (85% removal) at pH 5 and achieved 83% removal at 40 mg/L of CNTs. The adsorption continuously increased in the pH range of 3–5, beyond which the adsorption could not be carried out due to the precipitation of metal. This study was also supported by characterisation of CNTs using FESEM. The characterisation suggested that at acidic condition (pH 5), the surfaces of CNTs are more aligned and well-integrated compared to CNTs at different pHs. Finally, it can be concluded that CNTs could be a potential adsorbent for the removal of Pb from wastewater.

Item Type: Article (Journal)
Uncontrolled Keywords: carbon nanotubes; CNT; lead; pH; water treatment
Subjects: T Technology > TD Environmental technology. Sanitary engineering > TD172 Environmental pollution
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: 06 Feb 2012 09:38
Last Modified: 06 Feb 2012 09:38
URI: http://irep.iium.edu.my/id/eprint/17762

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