Removal of Pertechnetate-Related Oxyanions from Solution Using Functionalized Hierarchical Porous Frameworks

Debasis Banerjee; Sameh K Elsaidi; Briana Aguila; Baiyan Li; Dongsang Kim; Michael J Schweiger; Albert A Kruger; Christian J Doonan; Shengqian Ma; Praveen K Thallapally

doi:10.1002/chem.201603908

Removal of Pertechnetate-Related Oxyanions from Solution Using Functionalized Hierarchical Porous Frameworks

Chemistry. 2016 Dec 5;22(49):17581-17584. doi: 10.1002/chem.201603908. Epub 2016 Oct 20.

Authors

Affiliations

¹ Physical and Computational Science Directorate, Pacific Northwest National Laboratory, Richland, WA, 99352, USA.
² Chemistry Department, Faculty of Science, Alexandria University, P.O. Box 426, Ibrahimia, Alexandria, 21321, Egypt.
³ Department of Chemistry, University of South Florida, USA.
⁴ Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA, 99354, USA.
⁵ US Department of Energy, Office of River Protection, Richland, WA, 99352, USA.
⁶ Department of Chemistry, The University of Adelaide, Adelaide, South Australia, 5005, Australia.

PMID: 27685610
DOI: 10.1002/chem.201603908

Abstract

Efficient and cost-effective removal of radioactive pertechnetate anions from nuclear waste is a key challenge to mitigate long-term nuclear waste storage issues. Traditional materials such as resins and layered double hydroxides (LDHs) were evaluated for their pertechnetate or perrhenate (the non-radioactive surrogate) removal capacity, but there is room for improvement in terms of capacity, selectivity and kinetics. A series of functionalized hierarchical porous frameworks were evaluated for their perrhenate removal capacity in the presence of other competing anions.

Keywords: covalent organic frameworks; ion exchange; metal-organic frameworks; nuclear waste; pertechtenate.