Surface-Modified Nanofibrous PVDF Membranes for Liquid Separation Technology.

Autor: Boyraz E; Center for nanomaterials, Advanced Technology and Innovation, Department of Nanomaterials and Informatics, Technical University of Liberec, Studentska 1402/2, 46117, Czech Republic., Yalcinkaya F; Center for nanomaterials, Advanced Technology and Innovation, Department of Nanomaterials and Informatics, Technical University of Liberec, Studentska 1402/2, 46117, Czech Republic. fatma.yalcinkaya@tul.cz.; Faculty of Mechatronics, Institute for New Technologies and Applied Informatics, Technical University of Liberec, Studentska 1402/2, 46117 Liberec, Czech Republic. fatma.yalcinkaya@tul.cz., Hruza J; Center for nanomaterials, Advanced Technology and Innovation, Department of Nanomaterials and Informatics, Technical University of Liberec, Studentska 1402/2, 46117, Czech Republic.; Faculty of Mechatronics, Institute for New Technologies and Applied Informatics, Technical University of Liberec, Studentska 1402/2, 46117 Liberec, Czech Republic., Maryska J; Center for nanomaterials, Advanced Technology and Innovation, Department of Nanomaterials and Informatics, Technical University of Liberec, Studentska 1402/2, 46117, Czech Republic.; Faculty of Mechatronics, Institute for New Technologies and Applied Informatics, Technical University of Liberec, Studentska 1402/2, 46117 Liberec, Czech Republic.
Jazyk: angličtina
Zdroj: Materials (Basel, Switzerland) [Materials (Basel)] 2019 Aug 23; Vol. 12 (17). Date of Electronic Publication: 2019 Aug 23.
DOI: 10.3390/ma12172702
Abstrakt: Preparing easily scaled up, cost-effective, and recyclable membranes for separation technology is challenging. In the present study, a unique and new type of modified polyvinylidene fluoride (PVDF) nanofibrous membrane was prepared for the separation of oil-water emulsions. Surface modification was done in two steps. In the first step, dehydrofluorination of PVDF membranes was done using an alkaline solution. After the first step, oil removal and permeability of the membranes were dramatically improved. In the second step, TiO 2 nanoparticles were grafted onto the surface of the membranes. After adding TiO 2 nanoparticles, membranes exhibited outstanding anti-fouling and self-cleaning performance. The as-prepared membranes can be of great use in new green separation technology and have great potential to deal with the separation of oil-water emulsions in the near future.
Databáze: MEDLINE
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