TY - JOUR
T1 - One-step sorting of single-walled carbon nanotubes using aqueous two-phase extraction in the presence of basic salts
AU - Podlesny, Blazej
AU - Shiraki, Tomohiro
AU - Janas, Dawid
N1 - Funding Information:
D.J. and B.P. would like to thank the National Science Centre, Poland (under the OPUS program, Grant agreement 2019/33/B/ST5/00631) for financial support of the research. B.P. also acknowledges the National Agency for Academic Exchange of Poland (under the Academic International Partnerships program, grant agreement PPI/ APM/2018/1/00004) for financial support of the internship at Kyushu University in Japan which enabled the execution of a part of the experimental work and publishing the results in the gold open access model.
Publisher Copyright:
© 2020, The Author(s).
PY - 2020/12/1
Y1 - 2020/12/1
N2 - We demonstrate a simple one-step approach to separate (6,5) CNTs from raw material by using the aqueous two-phase extraction method. To reach this goal, stable and inexpensive K2CO3, Na2CO3, Li2CO3, and K3PO4 basic salts are used as modulators of the differentiation process. Under the appropriate parameters, near monochiral fractions become available for straightforward harvesting. In parallel, we show that the isolation process is strongly affected not only by pH but by the inherent nature of the introduced chemical species as well. The results of our study also reveal that the commonly used ingredients of the biphasic system make a strong contribution to the course of the separation by having far from neutral pH values themselves.
AB - We demonstrate a simple one-step approach to separate (6,5) CNTs from raw material by using the aqueous two-phase extraction method. To reach this goal, stable and inexpensive K2CO3, Na2CO3, Li2CO3, and K3PO4 basic salts are used as modulators of the differentiation process. Under the appropriate parameters, near monochiral fractions become available for straightforward harvesting. In parallel, we show that the isolation process is strongly affected not only by pH but by the inherent nature of the introduced chemical species as well. The results of our study also reveal that the commonly used ingredients of the biphasic system make a strong contribution to the course of the separation by having far from neutral pH values themselves.
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U2 - 10.1038/s41598-020-66264-7
DO - 10.1038/s41598-020-66264-7
M3 - Article
C2 - 32513999
AN - SCOPUS:85086171446
SN - 2045-2322
VL - 10
JO - Scientific reports
JF - Scientific reports
IS - 1
M1 - 9250
ER -