• 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

    Mixed matrix membranes comprising aminosilane-functionalized graphene oxide for enhanced CO2 separation

    • CSV
    • RefMan
    • EndNote
    • BibTex
    • RefWorks
    Type
    Article
    Authors
    Zhang, Jinhui
    Xin, Qingping
    Li, Xu
    Yun, Mingya
    Xu, Rui
    Wang, Shaofei cc
    Li, Yifan
    Lin, Ligang
    Ding, Xiaoli
    Ye, Hui
    Zhang, Yuzhong
    KAUST Department
    Biological and Environmental Sciences and Engineering (BESE) Division
    Date
    2018-10-27
    Online Publication Date
    2018-10-27
    Print Publication Date
    2019-01
    Permanent link to this record
    http://hdl.handle.net/10754/630616
    
    Metadata
    Show full item record
    Abstract
    Mixed matrix membranes (MMMs) are challenged by the non-ideal interfacial morphologies that leads to the weakened gas separation performances and mechanical strength. Filler surface modification with organosilanes is an effective approach to build the linkage between polymer and the fillers. In this study, we fabricated MMMs by introducing aminosilane functionalized graphene oxide (f-GO) nanosheets into Pebax 1657 matrix. The introduction of f-GO decreased the crystallinity and increased chain mobility of Pebax matrix. Benefiting from the improved filler dispersion, semi-interpenetrated Pebax chains in the Si-O-Si network at the interface, and the high intrinsic mechanical strength of GO, the MMMs exhibit a 1.7-times higher Young's modulus and 1.1-times higher break strength. The amino groups on GO help to construct a facilitated transport pathway along the polymer-filler interface. With greatly improved CO separation performances in dry state, the membranes exhibited even higher performances in humidified state. Particularly, Pebax/f-GO-0.9% membrane showed a high CO permeability of 934.3 Barrer, and a CO/CH selectivity of 40.9, a CO/N selectivity of 71.1, surpassing the Robeson upper bound and quite promising for carbon capture.
    Citation
    Zhang J, Xin Q, Li X, Yun M, Xu R, et al. (2019) Mixed matrix membranes comprising aminosilane-functionalized graphene oxide for enhanced CO2 separation. Journal of Membrane Science 570-571: 343–354. Available: http://dx.doi.org/10.1016/j.memsci.2018.10.075.
    Sponsors
    The authors gratefully acknowledge the financial support from the National Natural Science Foundation of China (Nos. 21676201, 21706189, 51503146, 21878277), Tianjin Municipal Education Commission Scientific Research Project (2017KJ074), Science and Technology Plans of Tianjin (18JCQNJC06800), National Key Research and Development Plan (2017YFC0404001), Technology Research Funds Projects of Ocean (201305004-5), the Program for Innovative Research Team in University of Tianjin (No. TD13-5044), the Program for Changjiang Scholars and Innovative Research Team in University (PCSIRT) of Ministry of Education of China (Grand no. IRT13084) and Science and Technology Plans of Tianjin (17PTSYJC00050).
    Publisher
    Elsevier BV
    Journal
    Journal of Membrane Science
    DOI
    10.1016/j.memsci.2018.10.075
    Additional Links
    http://www.sciencedirect.com/science/article/pii/S0376738818326450
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.memsci.2018.10.075
    Scopus Count
    Collections
    Articles; Biological and Environmental Sciences and Engineering (BESE) Division

    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.