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Peroxide-treated metal-organic framework templated adsorbents for remediation of high level nuclear waste

Author:
Gilhula, James C., Patterson, Jacob T., Williams, Neil J., Itani, Ram, Taylor-Pashow, Kathryn M.L., Abney, Carter W.
Source:
Journal of hazardous materials 2019 v.365 pp. 306-311
ISSN:
0304-3894
Subject:
adsorbents, coordination polymers, plutonium, radioactive waste, radionuclides, remediation, United States
Abstract:
Remediation of legacy nuclear waste is one of the greatest challenges faced by the US Department of Energy, with projected cleanup efforts requiring over five decades and hundreds of billions of dollars. New materials are necessary to accelerate waste processing, achieving time and financial savings. Herein we report a peroxide treatment to a Ti metal-organic framework (MOF) and related MOF-templated adsorbents. The resulting materials displayed exceptional affinity for Am(III), achieving distribution coefficients in excess of 105 mL/g, and out-performing state-of-the-art benchmarks monosodium titanate (MST) and peroxo-treated modified MST (mMST) for removal of 85Sr(II) and 239, 240Pu(IV) from legacy nuclear waste simulant.
Agid:
6236452