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AuthorMoghaddasi, AbdolAli
AuthorSobolčiak, Patrik
AuthorPopelka, Anton
AuthorKrupa, Igor
Available date2023-06-26T04:54:19Z
Publication Date2020
Publication NameMaterials
ResourceScopus
URIhttp://dx.doi.org/10.3390/ma13143171
URIhttp://hdl.handle.net/10576/44821
AbstractPurpose: Copolyamide 6,10 (coPA) electrospun mats were covered with multilayered (ML) and single-layered (SL) MXene (Ti3C2Tx) as a membrane for the separation of water/vegetable oil emulsions. Methods: Prepared membranes were characterized by atomic force microscopy (AFM), profilometry, the contact angle measurements of various liquids in air, and the underwater contact angle of vegetable oil. The separation efficiency was evaluated by measuring the UV transmittance of stock solutions compared to the UV transmittance of the filtrate. Results: The MXene coating onto coPA mats led to changes in the permeability, hydrophilicity, and roughness of the membranes and enhanced the separation efficiency of the water/vegetable oil emulsions containing 10, 100, and 1000 ppm of sunflower vegetable oil. It was found that membranes were highly oleophobic (>124°) under water, unlike in air, where the membranes showed high oleophobicity (<5°). The separation efficiency of water/oil emulsions for both types of covered membranes reached over 99%, with a surface coverage of 3.2 mg/cm2 Ti3C2Tx (for ML-Ti3C2Tx) and 2.9 mg/cm2 (for SL-Ti3C2Tx). Conclusions: The separation efficiency was greater than 98% for membranes covered with 2.65 mg/cm2 of ML-Ti3C2Tx, whereas the separation efficiency for membranes containing 1.89 and 0.77 mg/cm2 was less than 90% for all studied emulsion concentrations.
SponsorThis publication was supported by the Qatar University Collaborative Grant QUCG-CAM-19/20-2. The findings achieved herein are solely the responsibility of the authors. The publication of this article was funded by the Qatar National Library.
Languageen
PublisherMDPI AG
SubjectCopolyamide
Membrane
MXene
Vegetable oil
Water purification
TitleSeparation of water/oil emulsions by an electrospun copolyamide mat covered with a 2D Ti3C2Tx MXene
TypeArticle
Issue Number14
Volume Number13
dc.accessType Open Access


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