Contact
    Start Publications Graphene oxide loaded fibrous matrixes of polyether block amide ...
    ←  Publication Finder
    Attension

    Graphene oxide loaded fibrous matrixes of polyether block amide (PEBA) elastomer as an adsorbent for removal of cationic dye from wastewater

    Year: 2021

    Journal: J. Environ. Manage., Volume 298, NOV 15

    Authors: Sarwar, Zahid; Tichonovas, Martynas; Krugly, Edvinas; Masione, Goda; Abromaitis, Vytautas; Martuzevicius, Dainius

    Organizations: European Social Fund [09.3.3-LMT-K-712-19-0229]; Research Council of Lithuania

    Keywords: Adsorption; PEBA; Graphene oxide; Melt electrospinning; Cationic dye; Water pollution

    Novel highly porous nanoparticle materials are increasingly being applied in adsorption processes, but they need to be supported by robust matrixes to maintain their functionality. We present a study of hosting graphene oxide (GO) particles on polyether block amide (PEBA) melt electrospun fibers and applying such composite matrix to the adsorption of the cationic dye (crystal violet) from water. Various amounts of GO (from 0.5 to 2.0%) were mixed into pure PEBA and electrospun by melt electrospinning obtaining micro fibrous matrixes. These were characterized for morphology (SEM), chemical composition (FTIR), crystallinity (XRD), and wetting behavior (WCA). The increasing amount of GO adversely affected fiber diameter (reduced from 13.18 to 4.38 mu m), while the hydrophilic properties (Water contact angle decrease from 109 to 76 degrees) and overall dye adsorption was increased. Efficient adsorption has been demonstrated, reaching approximately 100 % removal efficiency using a 2% GO composite matrix at a dose of 40 mg/l and pH of 10. Further increase of GO concentration in polymer is not feasible due to instability in the electrospinning process.
    View publication