A1 Journal article (refereed), original research

Ion Exchange of Lanthanides with Conventional and Ion-Imprinted Resins Containing Sulfonic or Iminodiacetic Acid Groups


Publication Details
Authors: Laatikainen Markku, Branger Catherine, Laatikainen Katri, Sainio Tuomo
Publisher: Taylor & Francis: STM, Behavioural Science and Public Health Titles
Publication year: 2019
Language: English
Related Journal or Series Information: Separation Science and Technology
ISSN: 0149-6395
eISSN: 1520-5754
JUFO-Level of this publication: 1
Open Access: Not an Open Access publication

Abstract

Ion exchange equilibria of samarium, dysprosium and erbium were measured in conventional and ion-imprinted resins containing sulfonic acid groups or iminodiacetic acid (ida) groups in H,H-form and partially neutralized H,Na-form. The ion-imprinted resins were prepared by copolymerization of complexes preparered from Er3+. Conventional resins have low selectivity because electrostatic interactions are dominant even for the ida resin. In ion imprinting, the complex structure formed a priori in bulk solution was retained in the resin and coordinative interactions became more prominent. As a result, the selectivity coefficient KErSm increased from 1.0 of the conventional resin to 3.5 of the imprinted resin.


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Last updated on 2020-20-03 at 10:03