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Enhanced adsorption of metal ions onto polyethyleneimine-impregnated palm shell activated carbon: Equilibrium studies
Journal article   Peer reviewed

Enhanced adsorption of metal ions onto polyethyleneimine-impregnated palm shell activated carbon: Equilibrium studies

C-Y Yin, M.K. Aroua and W.M.A.W. Daud
Water, Air, and Soil Pollution, Vol.192(1-4), pp.337-348
2008
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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.

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Source: InCites

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Collaboration types
Domestic collaboration
Citation topics
2 Chemistry
2.90 Water Treatment
2.90.27 Adsorption
Web Of Science research areas
Environmental Sciences
Meteorology & Atmospheric Sciences
Water Resources
ESI research areas
Environment/Ecology
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