TY - JOUR
T1 - Separation and detection of meta- and ortho- substituted benzene isomers by water-soluble pillar[5]arene
AU - Zhang, Gengwu
AU - Moosa, Basem
AU - Chen, Aiping
AU - Khashab, Niveen M.
N1 - KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: We thank King Abdullah University of Science and Technology (KAUST) and the AMPM center for supporting this work.
PY - 2020/5/25
Y1 - 2020/5/25
N2 - Efficient and energy-saving separation of benzene isomers bearing a diverse range of functional groups is a great challenge due
to their overlapping physicochemical properties. Here, we report a water soluble pillar[5]arene (WP5) that is successfully used as a multifunctional material for the separation and detection of meta/orthosubstituted benzene isomers in water. A liquid-liquid extraction
strategy was used for the separation of these benzene isomers based on their different affinity to WP5 in water. The selectivity for the metaover the ortho- isomer for xylenes, chlorotoluene and bromotoluene was 88.6%, 88.3% and 95.0% respectively, in one extraction cycle. Furthermore, a fluorescence indicator system based on WP5 and a fluorescent dye molecule (10-methylacridinium, D) was adopted and exhibited significant fluorescence and optical discrimination upon the addition of MX compared to OX, which implies that a simple “turn-on” detection can be performed prior to engaging in the separation process.
AB - Efficient and energy-saving separation of benzene isomers bearing a diverse range of functional groups is a great challenge due
to their overlapping physicochemical properties. Here, we report a water soluble pillar[5]arene (WP5) that is successfully used as a multifunctional material for the separation and detection of meta/orthosubstituted benzene isomers in water. A liquid-liquid extraction
strategy was used for the separation of these benzene isomers based on their different affinity to WP5 in water. The selectivity for the metaover the ortho- isomer for xylenes, chlorotoluene and bromotoluene was 88.6%, 88.3% and 95.0% respectively, in one extraction cycle. Furthermore, a fluorescence indicator system based on WP5 and a fluorescent dye molecule (10-methylacridinium, D) was adopted and exhibited significant fluorescence and optical discrimination upon the addition of MX compared to OX, which implies that a simple “turn-on” detection can be performed prior to engaging in the separation process.
UR - http://hdl.handle.net/10754/662988
UR - https://onlinelibrary.wiley.com/doi/abs/10.1002/cplu.202000275
UR - http://www.scopus.com/inward/record.url?scp=85086354521&partnerID=8YFLogxK
U2 - 10.1002/cplu.202000275
DO - 10.1002/cplu.202000275
M3 - Article
C2 - 32519821
SN - 2192-6506
VL - 85
SP - 1244
EP - 1248
JO - ChemPlusChem
JF - ChemPlusChem
IS - 6
ER -