A1 Refereed original research article in a scientific journal
Isolation of the (6,5) single-wall carbon nanotube enantiomers by surfactant-assisted aqueous two-phase extraction
Authors: Li H, Sims CM, Kang R, Biedermann F, Fagan JA, Flavel BS
Publisher: PERGAMON-ELSEVIER SCIENCE LTD
Publication year: 2023
Journal: Carbon
Journal name in source: CARBON
Journal acronym: CARBON
Volume: 204
First page : 475
Last page: 483
Number of pages: 9
ISSN: 0008-6223
DOI: https://doi.org/10.1016/j.carbon.2022.12.071(external)
Abstract
Sorting single-chirality enantiomers is the ultimate goal for single-wall carbon nanotube (SWCNT) separation. In this work, aqueous two-phase extraction (ATPE) is used to obtain highly purified (>80%) left- and right-handed (6,5) SWCNTs with limited experimental steps. The optimized surfactant conditions are presented, and analytical ultracentrifugation (AUC) and near-infrared photoluminescence (PL) measurements are used to examine the surfactant wrapping and partition coefficient change conditions (PCCCs) required for separation. Our study provides valuable insights into the underlying mechanisms behind surfactant-assisted SWCNT separations and facilitates the use of SWCNT enantiomers in fundamental studies and applications in the future.
Sorting single-chirality enantiomers is the ultimate goal for single-wall carbon nanotube (SWCNT) separation. In this work, aqueous two-phase extraction (ATPE) is used to obtain highly purified (>80%) left- and right-handed (6,5) SWCNTs with limited experimental steps. The optimized surfactant conditions are presented, and analytical ultracentrifugation (AUC) and near-infrared photoluminescence (PL) measurements are used to examine the surfactant wrapping and partition coefficient change conditions (PCCCs) required for separation. Our study provides valuable insights into the underlying mechanisms behind surfactant-assisted SWCNT separations and facilitates the use of SWCNT enantiomers in fundamental studies and applications in the future.