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Title: Selective separation of americium from europium using 2,9-bis(triazine)-1,10-phenanthrolines in ionic liquids: a new twist on an old story

Journal Article · · ChemComm
DOI:https://doi.org/10.1039/C6CC09823A· OSTI ID:1364312
 [1];  [2];  [3];  [4]; ORCiD logo [3]; ORCiD logo [1]
  1. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Chemistry; Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Chemical Sciences Division
  2. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Chemistry
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Chemical Sciences Division
  4. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Energy and Transportation Science Division
+ Show Author Affiliations

Bis-triazine phenanthrolines have shown great promise for f-block metal separations, attributable to their highly preorganized structure, nitrogen donors, and more enhanced covalent bonding with actinides over lanthanides. However, their limited solubility in traditional solvents remains a technological bottleneck. Here in this paper we report our recent work using a simple 2,9-bis(triazine)-1,10-phenanthroline (Me-BTPhen) dissolved in an ionic liquid (IL), demonstrating the efficacy of IL extraction systems for the selective separation of americium from europium, achieving separation factors in excess of 7500 and selectively removing up to 99% of the americium. Characterization of the coordination environment was performed using a combination of X-ray absorption fine structure spectroscopy (XAFS) and density functional theory (DFT) calculations.

Research Organization:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1364312
Journal Information:
ChemComm, Vol. 53, Issue 18; ISSN 1359-7345
Publisher:
Royal Society of ChemistryCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 25 works
Citation information provided by
Web of Science

References (32)

Tuning the Solubilities of Bis-triazinylphenanthroline Ligands (BTPhens) and Their Complexes journal January 2012
ATHENA , ARTEMIS , HEPHAESTUS : data analysis for X-ray absorption spectroscopy using IFEFFIT journal June 2005
Complexation of Am(III) and Nd(III) by 1,10-Phenanthroline-2,9-Dicarboxylic Acid journal December 2012
Extraction separation of rare-earth ions via competitive ligand complexations between aqueous and ionic-liquid phases journal January 2011
Electricity generation and health journal September 2007
Highly Efficient Separation of Actinides from Lanthanides by a Phenanthroline-Derived Bis-triazine Ligand journal August 2011
Prevented Mortality and Greenhouse Gas Emissions from Historical and Projected Nuclear Power journal April 2013
Preparation of Novel Silica-Based Nitrogen Donor Extraction Resins and Their Adsorption Performance for Trivalent Americium and Lanthanides journal December 2000
Synergism as a phenomenon in solvent extraction of 4f-elements with calixarenes journal January 2016
A Variation of the F-Test for Determining Statistical Relevance of Particular Parameters in EXAFS Fits
  • Downward, L.; Booth, C. H.; Lukens, W. W.
  • X-RAY ABSORPTION FINE STRUCTURE - XAFS13: 13th International Conference, AIP Conference Proceedings https://doi.org/10.1063/1.2644450
conference January 2007
Studies on the Parallel Synthesis and Evaluation of New Heterocyclic Extractants for the Partitioning of Minor Actinides journal January 2003
Policy: Reassess New Mexico's nuclear-waste repository journal January 2016
Significance tests on the crystallographic R factor journal May 1965
The energetic implications of curtailing versus storing solar- and wind-generated electricity journal January 2013
EXTRACTION OF Am(lll) AND Eu(lll) NITRATES BY 2-6-DI-(5,6-DIPROPYL-1,2,4-TRIAZIN-3-YL)PYRIDINES 1 journal September 1999
Enhanced Metal Ion Selectivity of 2,9-Di-(pyrid-2-yl)-1,10-phenanthroline and Its Use as a Fluorescent Sensor for Cadmium(II) journal January 2008
Solvent Extraction and Fluorescence Spectroscopic Investigation of the Selective Am(III) Complexation with TS-BTPhen journal January 2016
SIXPack a Graphical User Interface for XAS Analysis Using IFEFFIT journal January 2005
Complexation of Cm( iii ) and Eu( iii ) with CyMe 4 -BTPhen and CyMe 4 -BTBP studied by time resolved laser fluorescence spectroscopy journal January 2014
A remarkable enhancement in Am 3+ /Eu 3+ selectivity by an ionic liquid based solvent containing bis-1,2,4-triazinyl pyridine derivatives: DFT validation of experimental results journal January 2015
Extraction mechanism and γ-radiation effect on the removal of Eu 3+ by a novel BTPhen/[C n mim][NTf 2 ] system in the presence of nitric acid journal January 2014
Hydrophilic sulfonated bis-1,2,4-triazine ligands are highly effective reagents for separating actinides( iii ) from lanthanides( iii ) via selective formation of aqueous actinide complexes journal January 2015
Selective separation of trivalent f-ions using 1,10-phenanthroline-2,9-dicarboxamide ligands in ionic liquids journal January 2016
Solvent extraction of rare-earth ions based on functionalized ionic liquids journal February 2012
Lanthanide Speciation in Potential SANEX and GANEX Actinide/Lanthanide Separations Using Tetra-N-Donor Extractants journal June 2012
Theoretical approaches to x-ray absorption fine structure journal July 2000
Ionic Liquids-Based Extraction: A Promising Strategy for the Advanced Nuclear Fuel Cycle journal December 2011
The preparation of 2,4- and 2,6-bis-triazinyl and triazolinyl derivatives of pyridine journal December 1971
The pyridyl group in ligand design for selective metal ion complexation and sensing journal January 2013
The optimization of an ionic liquid-based TALSPEAK-like process for rare earth ions separation journal March 2014
Anion concentration-dependent partitioning mechanism in the extraction of uranium into room-temperature ionic liquids journal April 2008
Mixed Americium-Curium Heat Sources for Radioisotope Heaters and Power Systems journal September 2011

Cited By (4)

Exploring the Subtle Effect of Aliphatic Ring Size on Minor Actinide‐Extraction Properties and Metal Ion Speciation in Bis‐1,2,4‐Triazine Ligands journal October 2019
Hydrophilic 2,9-bis-triazolyl-1,10-phenanthroline ligands enable selective Am( iii ) separation: a step further towards sustainable nuclear energy journal January 2017
Coordination of Nd( iii ) and Eu( iii ) with monodentate organophosphorus ligands in ionic liquids: spectroscopy and thermodynamics journal January 2019
One-Pot Preparation Method of 5-Alkyl-3-(benzo)pyridyl-1,2,4-triazines journal May 2018

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Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY