Separation and detection of meta- and ortho- substituted benzene isomers by water-soluble pillar[5]arene
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Accepted manuscript
Type
ArticleKAUST Department
Advanced Membranes and Porous Materials Research CenterChemical Science Program
Clean Combustion Research Center
Physical Science and Engineering (PSE) Division
Smart Hybrid Materials (SHMs) lab
Date
2020-06-10Online Publication Date
2020-06-10Print Publication Date
2020-06Embargo End Date
2021-05-25Submitted Date
2020-04-05Permanent link to this record
http://hdl.handle.net/10754/662988
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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.Citation
Zhang, G., Moosa, B., Chen, A., & Khashab, N. (2020). Separation and detection of meta- and ortho- substituted benzene isomers by water-soluble pillar[5]arene. ChemPlusChem. doi:10.1002/cplu.202000275Sponsors
We thank King Abdullah University of Science and Technology (KAUST) and the AMPM center for supporting this work.Publisher
WileyJournal
ChemPlusChemAdditional Links
https://onlinelibrary.wiley.com/doi/abs/10.1002/cplu.202000275ae974a485f413a2113503eed53cd6c53
10.1002/cplu.202000275