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Reference type: Journal
Authors: Li Q, Su HJ, Li J, Tan TW
Article Title: Application of surface molecular imprinting adsorbent in expanded bed for the adsorption of Ni2+ and adsorption model.
Publication date: 2007
Journal: Journal of Environmental Management
Volume: 85
Issue: (4)
Page numbers: 900-907.
DOI: 10.1016/j.jenvman.2006.10.023
Alternative URL: http://www.sciencedirect.com/science/article/B6WJ7-4MNRN4S-1/2/0eb3b8f2cb8db46193bbeb55aa4cc8aa

Abstract: A new surface molecular imprinting adsorbent (SMIA) was used in an expanded bed. The expansion ratio and adsorption performance were studied at different volumetric rates, inlet concentrations, and pH values. A model based on the Adams-Bohart adsorption model of breakthrough curves was established. The predicted curves had good agreement with the experimental curves. The breakthrough time (T1/2) decreased with increasing inlet concentration when the outlet concentration was half the initial concentration (C/C0=0.5). The inlet concentration had little effect on the adsorption rate constant (k1) value when the initial concentration (C0) was above 150 mg/L. However, T1/2 values increased with increasing initial pH of the inlet solution, and the k1 value decreased due to the competition between H+ and Ni2+
Template and target information: nickel ion, Ni(II)
Author keywords: molecular imprinting, Expanded bed, adsorption, Ni2+, Breakthrough curve, Adams-Bohart adsorption model


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