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Reference type: Journal
Authors: Zheng XD, Zhang FS, Liu EL, Xu XC, Yan YS
Article Title: Efficient Recovery of Neodymium in Acidic System by Free-Standing Dual-Template Docking Oriented Ionic Imprinted Mesoporous Films.
Publication date: 2017
Journal: ACS Applied Materials & Interfaces
Volume: 9
Issue: (1)
Page numbers: 730-739.
DOI: 10.1021/acsami.6b13049

Abstract: Neodymium (Nd) is critical component of sintered neodymium magnets. Separation of Nd from consumer magnets has attracted a widespread attention. In this paper, we presented free-standing ionic imprinted mesoporous film materials for facile and highly efficient targeted separation of Nd from permanent magnets by dual-template docking oriented ionic imprinting (DTD-OII) method. DTD-OII is based on dual-template docking oriented molecular imprinting. Compared with conventional imprinting, this novel strategy does not need extra steps, but significantly advance imprinted efficiency. With optimization of functional monomer, our free-standing dual-template docking oriented ionic imprinted mesoporous films exhibit excellent adsorption of Nd by solid-liquid extraction. The Nd adsorption capacity for optimized films was 34.98 mg g-1 under pH = 3.0. The distribution coefficient of Nd was 636 mL g-1, which indicates films possess significantly selectivity of Nd. In addition, efficient dual-template docking oriented ionic imprinting makes films demonstrating an outstanding of reusability by cycle test, which appreciating their potential for industrial application
Template and target information: neodymium ion, Nd
Author keywords: biotemplate, dual-template docking orienting, imprinted mesoporous films, neodymium recovery, selective separation


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