A selective uranium extraction agent prepared by polymer imprinting

Saunders, Gregory D.; Foxon, Simon P.; Walton, Paul H.; Joyce, Malcolm J.; Port, Simon N.

doi:10.1039/a909691d

Cited by 47 publications

(16 citation statements)

References 9 publications

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“…A complex is assembled between a targeted metal ion and a polymerizable ligand, it is polymerized with a crosslinking agent, the metal ion is leached from the polymer, and the polymer is left imprinted with ligands in optimal positions for the metal ion used as template (Fig. ) . A Cu(II)‐selective polymer was thus prepared by first complexing Cu(II) to itaconic acid, polymerizing it in the presence of ethylene glycol dimethacrylate as crosslinking agent, then removing the metal ion with 2 mol L ‐1 HCl and 0.1 mol L ‐1 EDTA (Fig.…”

Section: Ion‐selective Polymersmentioning

confidence: 99%

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From ion exchange resins to polymer‐supported reagents: an evolution of critical variables

Alexandratos

2017

J of Chemical Tech & Biotech

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The concept of immobilizing ligands onto cross‐linked polymer supports is presented as an evolution of a concept that begins with ion exchange resins and evolves into ion‐selective polymers, polymer‐supported catalysts, and the general area of polymer‐supported reagents. Each of the four categories of polymers is defined by a set of major variables {electrostatic attraction (for ion exchange resins); steric, geometric, and electronic factors (for ion‐selective polymers); attracting and orienting reactants, and stabilizing the transition state (for polymer‐supported catalysts); and binding reactants with weak or strong forces (for polymer‐supported reagents)} and of minor variables {pH, concentration, competing ions, counterions, ionic strength, hydrophilic/hydrophobic interactions, hydration energies, and polymer crosslink level}. The rational design of each category will require identifying the relationships between major and minor variables and applying the principles inherent to complexity science will be an important focus of future research. © 2017 Society of Chemical Industry

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Section: Ion‐selective Polymersmentioning

confidence: 99%

“…6). 22 A Cu(II)-selective polymer was thus prepared by first complexing Cu(II) to itaconic acid, polymerizing it in the presence of ethylene glycol dimethacrylate as crosslinking agent, then removing the metal ion with 2 mol L -1 HCl and 0.1 mol L -1 EDTA (Fig. 7).…”

Section: Ion-selective Polymersmentioning

confidence: 99%

From ion exchange resins to polymer‐supported reagents: an evolution of critical variables

Alexandratos

2017

J of Chemical Tech & Biotech

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“…The first IIP preparation was achieved using poly(vinyl pyridine) crosslinked with 1,4-dibromobutane in the presence of metal ions [46]. Saunders et al [47] used 2-chloroacrylic acid and ethylene glycol dimethacrylate (EGDMA) with a uranyl ion-imprinted co-polymer after removal of the template. This material selectively extracts uranium from dilute aqueous solutions.…”

Section: Introductionmentioning

confidence: 99%

Ion-Imprinted Polymers: Synthesis, Characterization, and Adsorption of Radionuclides

et al. 2021

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Growing concern over the hazardous effect of radionuclides on the environment is driving research on mitigation and deposition strategies for radioactive waste management. Currently, there are many techniques used for radionuclides separation from the environment such as ion exchange, solvent extraction, chemical precipitation and adsorption. Adsorbents are the leading area of research and many useful materials are being discovered in this category of radionuclide ion separation. The adsorption technologies lack the ability of selective removal of metal ions from solution. This drawback is eliminated by the use of ion-imprinted polymers, these materials having targeted binding sites for specific ions in the media. In this review article, we present recently published literature about the use of ion-imprinted polymers for the adsorption of 10 important hazardous radionuclides—U, Th, Cs, Sr, Ce, Tc, La, Cr, Ni, Co—found in the nuclear fuel cycle.

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“…The high selectivity of ion-imprinted polymers (IIPs) arises from the memory effect of the polymer to the imprinted ions for example, from the specificity of interaction of ligand with the metal ions, the coordination geometry and coordination number of metal ions; the charge of the metal ions and to a large extent on the size of them [30]. In recent years, a lot of IIPs have been prepared for Pd 2+ [31], Ni 2+ [32,33], Fe 3+ [34], Cd 2+ [35,36], Zn 2+ [37], Cu 2+ [38], Dy [39], UO 2+ 2 [40][41][42], Ca 2+ [43], Er 3+ [44], Th 4+ [45], Hg 2+ [46], and Gd 3+ [47,48].…”

Section: Introductionmentioning

confidence: 99%

A Solid Binding Matrix/Mimic Receptor-Based Sensor System for Trace Level Determination of Iron Using Potential Measurements

Kamel

Moreira

Silva

et al. 2011

International Journal of Electrochemistry

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Iron(II)-(1,10-phenanthroline) complex imprinted membrane was prepared by ionic imprinting technology. In the first step, Fe(II) established a coordination linkage with 1,10-phenanthroline and functional monomer 2-vinylpyridine (2-VP). Next, the complex was copolymerized with ethylene glycol dimethacrylate (EGDMA) as a crosslinker in the presence of benzoyl peroxide (BPO) as an initiator. Potentiometric chemical sensors were designed by dispersing the iron(II)-imprinted polymer particles in 2-nitrophenyloctyl ether (o-NPOE) plasticizer and then embedded in poly vinyl chloride (PVC) matrix. The sensors showed a Nernstian response for [Fe(phen)3]2+with limit of detection 3.15 ng mL−1and a Nernstian slope of 35.7 mV per decade.

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A selective uranium extraction agent prepared by polymer imprinting

Cited by 47 publications

References 9 publications

From ion exchange resins to polymer‐supported reagents: an evolution of critical variables

From ion exchange resins to polymer‐supported reagents: an evolution of critical variables

Ion-Imprinted Polymers: Synthesis, Characterization, and Adsorption of Radionuclides

A Solid Binding Matrix/Mimic Receptor-Based Sensor System for Trace Level Determination of Iron Using Potential Measurements

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