• Login
    View Item 
    •   Home
    • Research
    • Articles
    • View Item
    •   Home
    • Research
    • Articles
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    All of KAUSTCommunitiesIssue DateSubmit DateThis CollectionIssue DateSubmit Date

    My Account

    Login

    Quick Links

    Open Access PolicyORCID LibguidePlumX LibguideSubmit an Item

    Statistics

    Display statistics

    Pristine and Carboxyl-Functionalized Tetraphenylethylene-Based Ladder Networks for Gas Separation and Volatile Organic Vapor Adsorption

    • CSV
    • RefMan
    • EndNote
    • BibTex
    • RefWorks
    Thumbnail
    Name:
    acsomega.8b02544.pdf
    Size:
    2.071Mb
    Format:
    PDF
    Description:
    Published version
    Download
    Thumbnail
    Name:
    ao8b02544_si_001.pdf
    Size:
    586.3Kb
    Format:
    PDF
    Description:
    Supplemental files
    Download
    Type
    Article
    Authors
    Ma, Xiaohua
    Wang, Yingge
    Yao, Kexin
    Ali, Zain cc
    Han, Yu cc
    Pinnau, Ingo cc
    KAUST Department
    Advanced Membranes and Porous Materials Research Center
    Biological and Environmental Sciences and Engineering (BESE) Division
    Chemical Engineering Program
    Chemical Science Program
    Functional Polymer Membranes Group, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
    Nanostructured Functional Materials (NFM) laboratory
    Physical Science and Engineering (PSE) Division
    Date
    2018-11-27
    Online Publication Date
    2018-11-27
    Print Publication Date
    2018-11-30
    Permanent link to this record
    http://hdl.handle.net/10754/630166
    
    Metadata
    Show full item record
    Abstract
    A novel tetraphenylethylene-based ladder network (MP1) made by polycondensation reaction from 4,4′,4″,4‴-(ethene-1,1,2,2-tetrayl)tetrakis(benzene-1,2-diol) and 2,3,5,6-tetrafluoroterephthalonitrile and its COOH-functionalized analogue (MP2) were synthesized for the first time. Their structures were confirmed by solid-state nuclear magnetic resonance (13C cross-polarization magic angle spinning), Fourier transform infrared spectroscopy, and elementary analysis. MP1 exhibited a high Brunauer–Emmett–Teller surface area (1020 m2 g–1), whereas the COOH-functionalized MP2 showed a much smaller surface area (150 m2 g–1) but displayed a more uniform pore size distribution. Because of the high density of nitrile groups in the network polymers of intrinsic microporosity (PIMs) and strong interaction with quadrupole CO2 molecules, MP1 exhibited a high CO2 adsorption capacity of 4.2 mmol g–1 at 273 K, combined with an isosteric heat of adsorption (Qst) of 29.6 kJ mol–1. The COOH-functionalized MP2 showed higher Qst of 34.2 kJ mol–1 coupled with a modest CO2 adsorption capacity of 2.2 mmol g–1. Both network PIMs displayed high theoretical ideal adsorbed solution theory CO2/N2 selectivities (51 and 94 at 273 K vs 34 and 84 at 298 K for MP1 and MP2, respectively). The high selectivities of MP1 and MP2 were confirmed by experimental column breakthrough experiments with CO2/N2 selectivity values of 23 and 45, respectively. Besides the promising CO2 capture and CO2/N2 selectivity properties, MP1 also demonstrated high sorption capacity for toxic volatile organic vapors. At 298 K and a relative pressure of 0.95, benzene and toluene sorption uptakes reached 765 and 1041 mg g–1, respectively. Moreover, MP1 also demonstrated some potential for adsorptive separation of xylene isomers with adsorptive selectivity of 1.75 for m-xylene/o-xylene.
    Citation
    Ma X, Wang Y, Yao K, Ali Z, Han Y, et al. (2018) Pristine and Carboxyl-Functionalized Tetraphenylethylene-Based Ladder Networks for Gas Separation and Volatile Organic Vapor Adsorption. ACS Omega 3: 15966–15974. Available: http://dx.doi.org/10.1021/acsomega.8b02544.
    Sponsors
    This work was supported by funding from the King Abdullah University of Science and Technology (KAUST).
    Publisher
    American Chemical Society (ACS)
    Journal
    ACS Omega
    DOI
    10.1021/acsomega.8b02544
    Additional Links
    https://pubs.acs.org/doi/10.1021/acsomega.8b02544
    ae974a485f413a2113503eed53cd6c53
    10.1021/acsomega.8b02544
    Scopus Count
    Collections
    Articles; Biological and Environmental Sciences and Engineering (BESE) Division; Advanced Membranes and Porous Materials Research Center; Physical Science and Engineering (PSE) Division; Chemical Science Program; Chemical Engineering Program

    entitlement

     
    DSpace software copyright © 2002-2021  DuraSpace
    Quick Guide | Contact Us | Send Feedback
    Open Repository is a service hosted by 
    Atmire NV
     

    Export search results

    The export option will allow you to export the current search results of the entered query to a file. Different formats are available for download. To export the items, click on the button corresponding with the preferred download format.

    By default, clicking on the export buttons will result in a download of the allowed maximum amount of items. For anonymous users the allowed maximum amount is 50 search results.

    To select a subset of the search results, click "Selective Export" button and make a selection of the items you want to export. The amount of items that can be exported at once is similarly restricted as the full export.

    After making a selection, click one of the export format buttons. The amount of items that will be exported is indicated in the bubble next to export format.