Enhanced adsorption of metal ions onto polyethyleneimine-impregnated palm shell activated carbon: Equilibrium studies
Document Type
Article
Publication Date
1-1-2008
Abstract
In this study, palm shell activated carbon was impregnated with polyethyleneimine (PEI) and the effect of impregnation on batch adsorption of Ni2+, Cd2+or Pb2+ as well as the equilibrium behavior of adsorption of metal ions on PEI-impregnated AC were investigated. PEI impregnation evidently increased the single metal adsorption capacities of Ni2+ or Cd2+except for Pb2+, where its adsorption capacities were reduced by 16.67 and 19.55 for initial solution pH of 3 and 5 respectively. This suggested that PEI-impregnated AC could be used for selective separation of Pb2+ ions from other metal ions. The adsorption data of all the metal ions on both virgin and PEI-impregnated AC for both initial solution pH of 3 and 5 generally fitted the Langmuir and Redlich-Peterson isotherms considerably better than the Freundlich isotherm.
Keywords
Adsorption, Isotherms, Metal ions, Palm shell activated carbon, Polyethyleneimine, Carbon Charcoal, Nickel, Shells (structures), Batch adsorption, Equilibrium studies, Palm shell, Polyethylene imine (PEI), Activated carbon, cadmium, lead, metal ion, cation, equilibrium, isotherm, nut, pH, polymer, shell, article, Langmuir Blodgett film.
Divisions
fac_eng
Publication Title
Water Air and Soil Pollution
Volume
192
Issue
1-4
Publisher
Water Air and Soil Pollution
Additional Information
Cited By (since 1996):6 Export Date: 21 April 2013 Source: Scopus CODEN: WAPLA :doi 10.1007/s11270-008-9660-9 Language of Original Document: English Correspondence Address: Yin, C. 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