Bicarbonate Elution of Uranium from Amidoxime-Based Polymer Adsorbents for Sequestering Uranium from Seawater
Abstract
Abstract Uranium adsorbed on amidoxime‐based polyethylene fibers in simulated seawater can be quantitatively eluted using 3 M KHCO 3 at 40 °C. Thermodynamic calculations are in agreement with the experimental observation that at high bicarbonate concentrations (3 M) uranyl ions bound to amidoxime molecules are converted to uranyl tris‐carbonato complex in the aqueous solution. The elution process is basically the reverse reaction of the uranium adsorption process which occurs at a very low bicarbonate concentration (∼10 −3 M) in seawater. In real seawater experiments, the bicarbonate elution is followed by a NaOH treatment to remove natural organic matter adsorbed on the polymer adsorbent. Using the sequential bicarbonate and NaOH elution, the adsorbent is reusable after rinsing with deionized water and the recycled adsorbent shows no loss of uranium loading capacity based on real seawater experiments.
- Authors:
-
- Univ. of Idaho, Moscow, ID (United States). Dept. of Chemistry
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States). Marine Sciences Lab.
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science and Technology Division
- Publication Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE Office of Nuclear Energy (NE)
- OSTI Identifier:
- 1362216
- Alternate Identifier(s):
- OSTI ID: 1400853
- Grant/Contract Number:
- AC05-00OR22725; 00042246
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Chemistry Select
- Additional Journal Information:
- Journal Volume: 2; Journal Issue: 13; Journal ID: ISSN 2365-6549
- Publisher:
- Wiley
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; uranium; polyethyethylene; amidoxime; bicarbonate; seawater
Citation Formats
Pan, Horng-Bin, Wai, Chien M., Kuo, Li-Jung, Gill, Gary, Tian, Guoxin, Rao, Linfeng, Das, Sadananda, Mayes, Richard T., and Janke, Christopher J. Bicarbonate Elution of Uranium from Amidoxime-Based Polymer Adsorbents for Sequestering Uranium from Seawater. United States: N. p., 2017.
Web. doi:10.1002/slct.201700177.
Pan, Horng-Bin, Wai, Chien M., Kuo, Li-Jung, Gill, Gary, Tian, Guoxin, Rao, Linfeng, Das, Sadananda, Mayes, Richard T., & Janke, Christopher J. Bicarbonate Elution of Uranium from Amidoxime-Based Polymer Adsorbents for Sequestering Uranium from Seawater. United States. https://doi.org/10.1002/slct.201700177
Pan, Horng-Bin, Wai, Chien M., Kuo, Li-Jung, Gill, Gary, Tian, Guoxin, Rao, Linfeng, Das, Sadananda, Mayes, Richard T., and Janke, Christopher J. Tue .
"Bicarbonate Elution of Uranium from Amidoxime-Based Polymer Adsorbents for Sequestering Uranium from Seawater". United States. https://doi.org/10.1002/slct.201700177. https://www.osti.gov/servlets/purl/1362216.
@article{osti_1362216,
title = {Bicarbonate Elution of Uranium from Amidoxime-Based Polymer Adsorbents for Sequestering Uranium from Seawater},
author = {Pan, Horng-Bin and Wai, Chien M. and Kuo, Li-Jung and Gill, Gary and Tian, Guoxin and Rao, Linfeng and Das, Sadananda and Mayes, Richard T. and Janke, Christopher J.},
abstractNote = {Abstract Uranium adsorbed on amidoxime‐based polyethylene fibers in simulated seawater can be quantitatively eluted using 3 M KHCO 3 at 40 °C. Thermodynamic calculations are in agreement with the experimental observation that at high bicarbonate concentrations (3 M) uranyl ions bound to amidoxime molecules are converted to uranyl tris‐carbonato complex in the aqueous solution. The elution process is basically the reverse reaction of the uranium adsorption process which occurs at a very low bicarbonate concentration (∼10 −3 M) in seawater. In real seawater experiments, the bicarbonate elution is followed by a NaOH treatment to remove natural organic matter adsorbed on the polymer adsorbent. Using the sequential bicarbonate and NaOH elution, the adsorbent is reusable after rinsing with deionized water and the recycled adsorbent shows no loss of uranium loading capacity based on real seawater experiments.},
doi = {10.1002/slct.201700177},
journal = {Chemistry Select},
number = 13,
volume = 2,
place = {United States},
year = {Tue May 02 00:00:00 EDT 2017},
month = {Tue May 02 00:00:00 EDT 2017}
}
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Works referencing / citing this record:
Polypropylene nonwoven fabric modified with oxime and guanidine for antibiofouling and highly selective uranium recovery from seawater
journal, May 2019
- Yang, Sen; Ji, Guoxun; Cai, Suya
- Journal of Radioanalytical and Nuclear Chemistry, Vol. 321, Issue 1
A highly efficient uranium grabber derived from acrylic fiber for extracting uranium from seawater
journal, January 2020
- Pan, Horng-Bin; Wai, Chien M.; Kuo, Li-Jung
- Dalton Transactions, Vol. 49, Issue 9
A Relativistic DFT Probe of Thorium and Protactinium Complexes Supported by Heterocalix[4]arene and Redox Properties of Early-Middle Actinides
journal, May 2018
- Bi, Yan-Ting; Bao, Zhe; Li, Li
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