Removal of Pb(II) ions from aqueous solution by adsorption using bael leaves (Aegle marmelos)

Chakravarty, S and Mohanty, Ashok and Nag, Sudha T and Upadhyay, A K and Konar, J and Sircar, J K and Madhukar, A and Gupta, K K (2010) Removal of Pb(II) ions from aqueous solution by adsorption using bael leaves (Aegle marmelos). Journal of Hazardous Materials, 173 (1-3). pp. 502-509.

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Biosorption of Pb(II) on bael leaves (Aegle marmelos) was investigated for the removal of Pb(II) from aqueous solution using different doses of adsorbent, initial pH, and contact time. The maximum Pb loading capacity of the bael leaves was 104 mg g−1 at 50 mg L−1 initial Pb(II) concentration at pH 5.1. SEM and FT-IR studies indicated that the adsorption of Pb(II) occurs inside the wall of the hollow tubes present in the bael leaves and carboxylic acid, thioester and sulphonamide groups are involved in the process. The sorption process was best described by pseudo second order kinetics. Among Freundlich and Langmuir isotherms, the latter had a better fit with the experimental data. The activation energy Ea confirmed that the nature of adsorption was physisorption. Bael leaves can selectively remove Pb(II) in the presence of other metal ions. This was demonstrated by removing Pb from the effluent of exhausted batteries.

Item Type:Article
Official URL/DOI:
Uncontrolled Keywords:Biosorption; Aegle marmelos; Pb(II) ions; Aqueous solution
Divisions:Analytical Chemistry
ID Code:490
Deposited By:Sahu A K
Deposited On:13 May 2010 12:54
Last Modified:21 Jul 2010 20:51

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