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Polymers 2018, 10(10), 1134;

Novel Photocatalytic PVDF/Nano-TiO2 Hollow Fibers for Environmental Remediation

Institute on Membrane Technology, ITM-CNR, Via P. Bucci 17/c, 87036 Rende (CS), Italy
Fraunhofer IGB, Nobelstrasse 12, 70569 Stuttgart, Germany
LEITAT, C/de la Innovació, 2 08225 Terrassa (Barcelona), Spain
Author to whom correspondence should be addressed.
Received: 1 August 2018 / Revised: 6 October 2018 / Accepted: 9 October 2018 / Published: 12 October 2018
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Polyvinylidene difluoride (PVDF) mixed matrix membranes loaded with inorganic TiO2 nanoparticles have received increasing attention in the last few years as self-cleaning membranes for possible application in wastewater treatment and seawater filtration. These novel membranes show increased hydrophilicity, stability and catalytic activity under UV-A irradiation. In this work, PVDF-TiO2 hollow fibers were prepared by employing new strategies for enhancing the stability of the TiO2 dispersion, reducing particle agglomeration and improving their distribution. The spinning conditions for producing ultrafiltration hollow fiber membranes from PVDF material and nano-TiO2 were investigated. Finally, the optimized fibers have been characterized and tested for methylene blue (MB) degradation in water and salty seawater, revealing good permeability, long-term stability under UV-A irradiation, and photo-catalytic activity in both test solutions. View Full-Text
Keywords: hollow fiber membranes; PVDF; TiO2; mixed matrix membrane; photocatalytic degradation; ultrafiltration hollow fiber membranes; PVDF; TiO2; mixed matrix membrane; photocatalytic degradation; ultrafiltration

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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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Galiano, F.; Song, X.; Marino, T.; Boerrigter, M.; Saoncella, O.; Simone, S.; Faccini, M.; Chaumette, C.; Drioli, E.; Figoli, A. Novel Photocatalytic PVDF/Nano-TiO2 Hollow Fibers for Environmental Remediation. Polymers 2018, 10, 1134.

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