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Reference type: Journal
Authors: Lu YC, He J, Luo GS
Article Title: An improved synthesis of chitosan bead for Pb(II) adsorption.
Publication date: 2013
Journal: Chemical Engineering Journal
Volume: 226
Page numbers: 271-278.
DOI: 10.1016/j.cej.2013.04.078
Alternative URL: http://www.sciencedirect.com/science/article/pii/S1385894713005561

Abstract: In this study, an improved synthesis method of preparation of Pb(II) imprinted chitosan (Pb(II)-CS) bead with uniform size and porous morphology was proposed to combine the microfluidic technique with crosslinking solidification. The infrared spectrum indicated the reversible chelation of Pb(II) with amino group played important role in amino group protection and Pb(II) adsorption. The adsorption capacity of Pb(II)-CS bead reached 79.2 mg/g for Pb(II) by optimizing preparation conditions and the desired adsorption time was just less than 30 min. The adsorption performance of Pb(II) on Pb(II)-CS matched with the pseudo-second-order kinetic model and the Langmuir isotherm model well. The recycled use of the Pb(II)-CS bead demonstrated little change in the adsorption capacity. The Pb(II)-CS bead might be used as an effective adsorbent for Pb(II) removal from water
Template and target information: lead ion, Pb(II)
Author keywords: Pb(II)-CS bead, Pb(II) adsorption, Microfluidic, Crosslinking solidification, Ion-imprinting

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