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Reference type: Journal
Authors: An FQ, Gao BJ, Huang XW, Zhang YQ, Li YB, Xu Y, Zhang ZG, Gao JF, Chen ZP
Article Title: Selectively removal of Al(III) from Pr(III) and Nd(III) rare earth solution using surface imprinted polymer.
Publication date: 2013
Journal: Reactive and Functional Polymers
Volume: 73
Issue: (1)
Page numbers: 60-65.
DOI: 10.1016/j.reactfunctpolym.2012.08.022
Alternative URL: http://www.sciencedirect.com/science/article/pii/S1381514812002453

Abstract: Rare earth is a very important strategic resource. But, impurities, such as Al3+, have great influence on the properties of rare earth material. In this paper, an Al3+-ionic imprinted polyamine functionalized silica gel sorbent was prepared by a surface imprinting technique for selectively adsorbing Al3+ from rare earth solution. The adsorption and recognition properties of IIP-PEI/SiO2 for Al3+ were studied in detail. The experimental results showed that IIP-PEI/SiO2 possessed strong adsorption affinity, specific recognition ability, and excellent selectivity for Al3+. The adsorption isotherm data greatly obey the Langmuir model, and the adsorption was typical monolayer. The adsorption capacity could reach to 1.98 mmol g-1, and relative selectivity coefficients relative to Pr3+ and Nd3+ are 23.47 and 22.85, respectively. Besides, IIP-PEI/SiO2 was regenerated easily using diluted hydrochloric acid solution as eluent and IIP-PEI/SiO2 possesses better reusability
Template and target information: aluminium ion, aluminum ion, Al(III)
Author keywords: Surface ionic imprinting, selectivity, removal, Al(III), Rare earth

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