Abstract
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.
Highlights
IntroductionSpent nuclear fuel (SNF) and high-level radioactive waste (HLRW) are generated during nuclear power reactor operation and decommissioning of nuclear facilities, respectively
Spent nuclear fuel (SNF) and high-level radioactive waste (HLRW) are generated during nuclear power reactor operation and decommissioning of nuclear facilities, respectively.There are 62 different radionuclides (RNs) formed from 235 U fission, which due to their instability, are subject to radioactive transformation
Ion-imprinted polymers for the adsorption of 10 important radionuclides—U, Th, Cs, Sr, Ce, Tc, La, Cr, Ni, Co—which are found in the nuclear fuel cycle, are presented
Summary
Spent nuclear fuel (SNF) and high-level radioactive waste (HLRW) are generated during nuclear power reactor operation and decommissioning of nuclear facilities, respectively. 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. IIPs shows excellentselectively ion selectivity due to uranium their recognizable binding moval the template This material extracts from dilute aqueous s sites for a particular ion’s size and charge. The adsorption capacity of the IIPs is influenced lutions He et al [48] synthesized a new functional monomer—N-(o-carboxypheny by certain factors, such as their ligands’ ability to bind with metal ions, ionic charge, the maleamic acid (CPMA)—for Th(IV) ion separation.
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