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Polymers 2017, 9(12), 679;

Preparation of Fouling-Resistant Nanofibrous Composite Membranes for Separation of Oily Wastewater

Department of Nanotechnology and Informatics, Technical University of Liberec, Institute for Nanomaterials, Advanced Technologies and Innovation, Studentska 1402/2, 46117 Liberec, Czech Republic
Faculty of Chemistry, Wroclaw University of Science and Technology, 27 Wybrzeze Stanislawa Wyspianskiego, 50-370 Wroclaw, Poland
Author to whom correspondence should be addressed.
Received: 13 November 2017 / Revised: 3 December 2017 / Accepted: 4 December 2017 / Published: 6 December 2017
(This article belongs to the Special Issue Electrospinning of Nanofibres)
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A facile and low-cost method has been developed for separation of oily wastewater. Polyvinylidene fluoride/polyacrylonitrile (PVDF/PAN) nanofibers laminated on a supporting layer were tested. In order to create highly permeable and fouling-resistant membranes, surface modifications of both fibers were conducted. The results of oily wastewater separation showed that, after low vacuum microwave plasma treatment with Argon (Ar) and chemical modification with sodium hydroxide (NaOH), the membranes had excellent hydrophilicity, due to the formation of active carboxylic groups. However, the membrane performance failed during the cleaning procedures. Titanium dioxide (TiO2) was grafted onto the surface of membranes to give them highly permeable and fouling-resistance properties. The results of the self-cleaning experiment indicated that grafting of TiO2 on the surface of the membranes after their pre-treatment with Ar plasma and NaOH increased the permeability and the anti-fouling properties. A new surface modification method using a combination of plasma and chemical treatment was introduced. View Full-Text
Keywords: nanofiber; modified nanofiber; nanocomposite nanofiber; modified nanofiber; nanocomposite

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Yalcinkaya, F.; Siekierka, A.; Bryjak, M. Preparation of Fouling-Resistant Nanofibrous Composite Membranes for Separation of Oily Wastewater. Polymers 2017, 9, 679.

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