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Title: Competitive adsorption of Pb2+, Cu2+, and Cd 2+ ions on microporous titanosilicate ETS-10
Authors: Lv, L. 
Hor, M.P.
Su, F. 
Zhao, X.S. 
Keywords: Competitive adsorption
Heavy metal ions
Microporous titanosilicate ETS-10
Issue Date: 1-Jul-2005
Source: Lv, L., Hor, M.P., Su, F., Zhao, X.S. (2005-07-01). Competitive adsorption of Pb2+, Cu2+, and Cd 2+ ions on microporous titanosilicate ETS-10. Journal of Colloid and Interface Science 287 (1) : 178-184. ScholarBank@NUS Repository.
Abstract: In the present study, the competitive adsorption characteristics of binary and ternary heavy metal ions Pb2+, Cu2+, and Cd 2+ on microporous titanosilicate ETS-10 were investigated in batch systems. Pure microporous titanosilicate ETS-10 was synthesized with P25 as the Ti source and characterized by the techniques of X-ray diffraction (XRD), field emission-scanning electron microscope (FESEM), nitrogen adsorption, and ζ-potential. Equilibrium and kinetic adsorption data showed that ETS-10 displays a high selectivity toward one metal in a two-component or a three-component system with an affinity order of Pb2+ > Cd 2+ > Cu2+. The equilibrium behaviors of heavy metals species with stronger affinity toward ETS-10 can be described by the Langmuir equation while the adsorption kinetics of the metals can be well fitted to a pseudo-second-order (PSO) model. © 2005 Elsevier Inc. All rights reserved.
Source Title: Journal of Colloid and Interface Science
ISSN: 00219797
DOI: 10.1016/j.jcis.2005.01.073
Appears in Collections:Staff Publications

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