Immobilizing 99Tc in Waste Repository Environment using Novel Getters
There is a need to identify and evaluate suitable high-efficiency robust getter materials that can be deployed for immobilizing and/or retarding the transport of key risk-driver radionuclides such as 99Tc in waste repositories. During the last six years, our getter research group has focused on developing novel getter functionalities that are attached as Self-Assembled Monolayers onto high surface area-nanoporous substrates (~800 -1000 m2/g) or to nanoparticles. We recently tested the 99Tc adsorption performance of a Cu-ethyelenediamine functional monolayer deposited onto titania nanoparticles. Adsorption data indicated that that Cu-EDA functionality was capable of specifically adsorbing 99Tc from the groundwater matrix. This test was part of our continued study to develop and test robust getter materials for immobilizing a number of risk-driver radionuclides in repository environments.
- Research Organization:
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-76RL01830
- OSTI ID:
- 985606
- Report Number(s):
- PNNL-SA-40641; TANSAO; DF0961000; TRN: US1006143
- Journal Information:
- Transactions of the American Nuclear Society, 89:163-164, Vol. 89; ISSN 0003-018X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
77 NANOSCIENCE AND NANOTECHNOLOGY
TECHNETIUM 99
ADSORPTION
GETTERS
PERFORMANCE
RADIOACTIVE WASTE DISPOSAL
RADIONUCLIDE MIGRATION
MITIGATION
COPPER COMPLEXES
AMINES
NANOSTRUCTURES
GROUND WATER
Novel getters
technetium
repository