Removal of Pertechnetate-Related Oxyanions from Solution Using Functionalized Hierarchical Porous Frameworks.
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.
Physical and Computational Science Directorate, Pacific Northwest National Laboratory, Richland, WA, 99352, USA.
Debasis
D
Banerjee
Physical and Computational Science Directorate, Pacific Northwest National Laboratory, Richland, WA, 99352, USA.|Chemistry Department, Faculty of Science, Alexandria University, P.O. Box 426, Ibrahimia, Alexandria, 21321, Egypt.
Sameh K
SK
Elsaidi
Department of Chemistry, University of South Florida, USA.
Briana
B
Aguila
Department of Chemistry, University of South Florida, USA.
Baiyan
B
Li
Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA, 99354, USA.
Dongsang
D
Kim
Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA, 99354, USA.
Michael J
MJ
Schweiger
US Department of Energy, Office of River Protection, Richland, WA, 99352, USA.
Albert A
AA
Kruger
Department of Chemistry, The University of Adelaide, Adelaide, South Australia, 5005, Australia.
Christian J
CJ
Doonan
Department of Chemistry, University of South Florida, USA.
Shengqian
S
Ma
Physical and Computational Science Directorate, Pacific Northwest National Laboratory, Richland, WA, 99352, USA.
Praveen K
PK
Thallapally
covalent organic frameworks; ion exchange; metal-organic frameworks; nuclear waste; pertechtenate