MIPdatabase
Authors: An FQ, Gao BJ, Huang XW, Zhang YQ, Li YB, Xu Y, Chen ZP, Gao JF
Article Title: Removal of Fe(II) from Ce(III) and Pr(III) rare earth solution using surface imprinted polymer.
Publication date: 2013
Journal: Desalination and Water Treatment
Volume: 51
Issue: (28-30)
Page numbers: 5566-5573.
DOI: 10.1080/19443994.2013.774295
Abstract: Abstract Rare earth solution is a very important strategic resource. But, impurities, such as Fe2+, have great influence on the optical properties of rare earth material. In this study, a novel Fe2+-ionic imprinted polyamine functionalized silica gel adsorbent was prepared by a surface imprinting technique for selective adsorption of Fe2+ from rare earth solution. The adsorption and recognition properties of IIP-PEI/SiO2 for Fe2+ were studied in detail. The experimental results showed that the IIP-PEI/SiO2 possessed strong adsorption affinity, specific recognition ability and excellent selectivity for Fe2+. The adsorption isotherm data greatly obey the Langmuir model, and the adsorption was typical monolayer. The adsorption capacity could reach up to 0.334 mmol g-1, and relative selectivity coefficients relative to Pr3+ and Ce3+ are 23.25 and 18.42, respectively. Besides, the IIP-PEI/SiO2 was regenerated easily using diluted hydrochloric acid solution, as eluent and IIP-PEI/SiO2 possess better reusability
Template and target information: iron ion, ferrous ion, Fe(II)
Author keywords: Surface ionic imprinting, selectivity, removal, Fe(II), Rare earth, polyethyleneimine
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