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    Separation and detection of meta- and ortho- substituted benzene isomers by water-soluble pillar[5]arene

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    Name:
    Separation_cplu.202000275.pdf
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    1.544Mb
    Format:
    PDF
    Description:
    Accepted manuscript
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    Type
    Article
    Authors
    Zhang, Gengwu
    Moosa, Basem cc
    Chen, Aiping
    Khashab, Niveen M. cc
    KAUST Department
    Advanced Membranes and Porous Materials Research Center
    Chemical Science Program
    Clean Combustion Research Center
    Physical Science and Engineering (PSE) Division
    Smart Hybrid Materials (SHMs) lab
    Date
    2020-06-10
    Online Publication Date
    2020-06-10
    Print Publication Date
    2020-06
    Embargo End Date
    2021-05-25
    Submitted Date
    2020-04-05
    Permanent link to this record
    http://hdl.handle.net/10754/662988
    
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    Abstract
    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.202000275
    Sponsors
    We thank King Abdullah University of Science and Technology (KAUST) and the AMPM center for supporting this work.
    Publisher
    Wiley
    Journal
    ChemPlusChem
    DOI
    10.1002/cplu.202000275
    Additional Links
    https://onlinelibrary.wiley.com/doi/abs/10.1002/cplu.202000275
    ae974a485f413a2113503eed53cd6c53
    10.1002/cplu.202000275
    Scopus Count
    Collections
    Articles; Advanced Membranes and Porous Materials Research Center; Physical Science and Engineering (PSE) Division; Chemical Science Program; Clean Combustion Research Center

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