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Title: Hydrophobic polymerized ionic liquids for trace metal solid phase extraction: thallium transfer from hydrochloric acid media

Journal Article · · New Journal of Chemistry
DOI:https://doi.org/10.1039/c9nj00689c· OSTI ID:1529986

It is known that some neat room-temperature hydrophobic ionic liquids can extract metallic species from aqueous solutions. The unique properties of such organic media allow for the application of polymerization techniques to convert the liquid organic phase to a solid one. In this work, a pyrrolidinium-based ionic liquid and a corresponding polymer with bis(trifluoromethanesulfonyl)imide counter anion have been considered for optimization of thallium(III) migration in liquid-liquid and solid-liquid extraction systems. Neither trivalent indium nor monovalent thallium were absorbed by the polymer layer. A mathematical model to describe the mechanism of metal extraction in these systems has been developed. Thermodynamic parameters as adsorption enthalpy, entropy, and Gibbs energy have also been determined.

Research Organization:
Texas A & M Univ., College Station, TX (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Nuclear Physics (NP)
Grant/Contract Number:
NA0003180; FG02-93ER40773
OSTI ID:
1529986
Alternate ID(s):
OSTI ID: 1515092
Journal Information:
New Journal of Chemistry, Vol. 43, Issue 23; ISSN 1144-0546
Publisher:
Royal Society of ChemistryCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 4 works
Citation information provided by
Web of Science

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