Effect of impregnation of activated carbon with chelating polymer on adsorption kinetics of Pb2+

Aroua, M.K. and Yin, C.Y. and Lim, F.N. and Kan, W.L. and Daud, W.M.A.W. (2009) Effect of impregnation of activated carbon with chelating polymer on adsorption kinetics of Pb2+. Journal of Hazardous Materials, 166 (2-3). pp. 1526-1529. ISSN 03043894

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Official URL: http://www.ncbi.nlm.nih.gov/pubmed/19168286

Abstract

The effects of polyethyleneimine (PEI) impregnation on the Pb2+ adsorption kinetics of palm shell-activated carbon and pH profile of bulk solution were investigated. Adsorption data were fitted to four established adsorption kinetics models, namely, pseudo-first-order, pseudo-second-order, Elovich equation and intraparticle diffusion. It was found that PEI impregnation at 16.68 and 29.82 wt PEI/AC increased the Pb2+ uptake rate while the opposite was observed for PEI impregnation at 4.76 and 8.41 wt PEI/AC. The increased uptake rates were due to higher concentration of PEI molecules on the surface of clogged pores as well as varying pore volumes. The adsorption kinetics data fitted the pseudo-second-order model better than the pseudo-first-order model, implying chemisorption was the rate-controlling step. The bulk solution pH generally showed an increasing trend from the use of virgin to PEI-impregnated activated carbon.

Item Type: Article
Additional Information: Cited By (since 1996):6 Export Date: 21 April 2013 Source: Scopus CODEN: JHMAD :doi 10.1016/j.jhazmat.2008.11.033 PubMed ID: 19168286 Language of Original Document: English Correspondence Address: Aroua, M.K.; Department of Chemical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia; email: mkaroua@um.edu.my : Chemicals/CAScarbon, 7440-44-0; lead, 7439-92-1; Charcoal, 16291-96-6; Chelating Agents; Lead, 7439-92-1; Polyethyleneimine, 9002-98-6; Polymers; Water Pollutants, Chemical References: Issabayeva, G., Aroua, M.K., Sulaiman, N.M.N., Removal of lead from aqueous solutions on palm shell activated carbon (2006) Bioresour. Technol., 97, pp. 2350-2355; Gercel, O., Gercel, H.F., Adsorption of lead (II) ions from aqueous solutions by activated carbon prepared from biomass plant material of Euphorbia rigida (2007) Chem. Eng. J., 132, pp. 289-297; Xu, T., Liu, X., Peanut shell activated carbon: characterization, surface modification and adsorption of Pb2+ from aqueous solution (2008) Chin. J. Chem. Eng., 16, pp. 401-406; Yin, C.Y., Aroua, M.K., Daud, W.M.A.A., Enhanced adsorption of metal ions on polyetyleneimine-impregnated palm shell activated carbon: equilibrium studies (2007) Water Air Soil Poll., 192, pp. 337-348; Yin, C.Y., Aroua, M.K., Daud, W.M.A.A., Impregnation of palm shell activated carbon with polyethyleneimine and its effects on Cd2+ adsorption (2007) Colloids Surf. A, 307, pp. 128-136; Lu, J., Chen, R., He, X., A lead ion-selective electrode based on a calixarene carboxyphenyl azo derivative (2002) J. Electroanal. Chem., 528, pp. 33-38; Aroua, M.K., Leong, S.P.P., Teo, L.Y., Yin, C.Y., Daud, W.M.A.W., Real-time determination of kinetics of adsorption of lead(II) onto palm shell activated carbon (2008) Bioresour. Technol., 99, pp. 5786-5792; Yin, C.Y., Aroua, M.K., Daud, W.M.A.A., Optimization of polyethyleneimine impregnation on activated carbon: effects of impregnation amount and molecular number on textural characteristics and metal adsorption capacities (2008) Mater. Chem. Phys., 112, pp. 417-422; Yang, J., Peng, J., Jia, J., Fang, H., Adsorption of carbon disulfide CS2 in water by different types of activated carbon-equilibrium, dynamics, and mathematical modeling (2007) J. Environ. Eng., 133, pp. 294-302; Lagergren, S., Zur theorie der sogenannten adsorption geloster stoffe. Kungliga Svenska Vetenskapsakademiens (1898) Handlingar, 24, pp. 1-39; Demirbas, E., Kobya, M., Senturk, E., Ozkan, T., Adsorption kinetics for the removal of chromium(VI) from aqueous solutions on the activated carbons prepared from agricultural wastes (2004) Water SA, 30, pp. 533-540; Ho, Y.S., Citation review of Lagergren kinetic rate equation on adsorption reactions (2004) Scientometrics, 59, pp. 171-177; Chien, S.H., Clayton, W.R., Application of Elovich equation to the kinetics of phosphate release and sorption in soil (1980) Soil Sci. Soc. Am. J., 44, pp. 265-268; Weber, W.J., Morris, J.C., Advances in water pollution research: removal of biologically resistant pollutants from waste waters by adsorption (1962) Proceedings of the International Conference on Water Pollution Symposium, vol. 2, pp. 231-266; Ho, Y.S., McKay, G., The kinetics of sorption of divalent metal ions onto sphagnum moss peat (2000) Water Res., 34, pp. 735-742; Teng, H., Hsieh, C., Activation energy for oxygen chemisorption on carbon at low temperatures (1999) Ind. Eng. Chem. Res., 38, pp. 292-297; Gupta, S.S., Bhattacharyya, K.G., Adsorption of Ni(II) on clays (2006) J. Colloid Interface Sci., 295, pp. 21-32
Uncontrolled Keywords: Adsorption kinetics; Palm shell-activated carbon; Pb2+; Polyethyleneimine; Adsorption datum; Bulk solutions; Chelating polymers; Concentration of; Elovich equations; Impregnated activated carbons; Intra-particle diffusions; Pb2<sup>+</sup>; Pore volumes; Pseudo first orders; Pseudo-second order models; Rate-controlling; Second orders; Uptake rates; Adsorption; Charcoal; Chemisorption; Impregnation; Lead; Lead alloys; Activated carbon; carbon; chelating agent; cation; concentration (composition); evergreen tree; pH; polymer; reaction kinetics; article; chemical reaction kinetics; concentration (parameters); pH measurement; Chelating Agents; Gymnosperms; Kinetics; Polymers; Water Pollutants; Chemical.
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TP Chemical technology
Divisions: Faculty of Engineering
Depositing User: Mr Jenal S
Date Deposited: 16 Jul 2013 08:18
Last Modified: 08 Nov 2017 08:39
URI: http://eprints.um.edu.my/id/eprint/7444

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