Photocatalytic Microporous Membrane against the Increasing Problem of Water Emerging Pollutants

Martins, Pedro M.; Ribeiro, Joana M.; Teixeira, Sara; Petrovykh, Dmitri. Y.; Cuniberti, Gianaurelio; Pereira, Luciana; Lanceros-Méndez, Senentxu

doi:10.3390/ma12101649

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Photocatalytic Microporous Membrane against the Increasing Problem of Water Emerging Pollutants

^1,2,3,*,†

^1,†

⁴,

⁵

Gianaurelio Cuniberti

^4,6,7

Luciana Pereira

and

Senentxu Lanceros-Méndez

^1,8,9,*

Centre of Physics, University of Minho, 4710-057 Braga, Portugal

Department of Biological Engineering, University of Minho, 4710-057 Braga, Portugal

Institute of Science and Innovation for Bio-Sustainability (IB-S), University of Minho, 4710-057 Braga, Portugal

⁴

Institute for Materials Science and Max Bergmann Center of Biomaterials, TU Dresden, 01062 Dresden, Germany

⁵

International Iberian Nanotechnology Laboratory, Avenida Mestre José Veiga, 4715-330 Braga, Portugal

⁶

Dresden Center for Computational Materials Science, TU Dresden, 01062 Dresden, Germany

⁷

Center for Advancing Electronics Dresden, TU Dresden, 01062 Dresden, Germany

⁸

Basque Center for Materials, Applications, and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain

⁹

IKERBASQUE, Basque Foundation for Science, 48013 Bilbao, Spain

Authors to whom correspondence should be addressed.

^†

Pedro M. Martins and Joana M. Ribeiro contributed equally to this work.

Materials 2019, 12(10), 1649; https://doi.org/10.3390/ma12101649

Received: 9 April 2019 / Revised: 8 May 2019 / Accepted: 16 May 2019 / Published: 21 May 2019

(This article belongs to the Special Issue Advances in Microreactor Devices for Biomedicine, Nanoparticle Synthesis, Catalysis and Energy Processes)

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Abstract

Emerging pollutants are an essential class of recalcitrant contaminants that are not eliminated from water after conventional treatment. Here, a photocatalytic microporous membrane based on polyvinylidene difluoride-co-trifluoroethylene (PVDF−TrFE) with immobilised TiO₂ nanoparticles, prepared by solvent casting, was tested against representative emerging pollutants. The structure and composition of these polymeric membranes were characterized by scanning electron microscopy, energy dispersive X-ray spectroscopy, Fourier-transform infrared spectroscopy, porosimetry, and contact angle goniometry. The nanocomposites exhibited a porous structure with a uniform distribution of TiO₂ nanoparticles. The addition of TiO₂ did not change the structure of the polymeric matrix; however, it increased the wettability of the nanocomposite. The nanocomposites degraded 99% of methylene blue (MB), 95% of ciprofloxacin (CIP), and 48% of ibuprofen (IBP). The microporous nanocomposite exhibited no photocatalytic efficiency loss after four use cycles, corresponding to 20 h of UV irradiation. The reusability of this system confirms the promising nature of polymer nanocomposites as the basis for cost-effective and scalable treatments of emerging pollutants. View Full-Text

Keywords: immobilization; pharmaceuticals; photocatalysis; PVDF-TrFE; titanium dioxide

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MDPI and ACS Style

Martins, P.M.; Ribeiro, J.M.; Teixeira, S.; Petrovykh, D.Y.; Cuniberti, G.; Pereira, L.; Lanceros-Méndez, S. Photocatalytic Microporous Membrane against the Increasing Problem of Water Emerging Pollutants. Materials 2019, 12, 1649. https://doi.org/10.3390/ma12101649

AMA Style

Martins PM, Ribeiro JM, Teixeira S, Petrovykh DY, Cuniberti G, Pereira L, Lanceros-Méndez S. Photocatalytic Microporous Membrane against the Increasing Problem of Water Emerging Pollutants. Materials. 2019; 12(10):1649. https://doi.org/10.3390/ma12101649

Chicago/Turabian Style

Martins, Pedro M., Joana M. Ribeiro, Sara Teixeira, Dmitri. Y. Petrovykh, Gianaurelio Cuniberti, Luciana Pereira, and Senentxu Lanceros-Méndez. 2019. "Photocatalytic Microporous Membrane against the Increasing Problem of Water Emerging Pollutants" Materials 12, no. 10: 1649. https://doi.org/10.3390/ma12101649

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Photocatalytic Microporous Membrane against the Increasing Problem of Water Emerging Pollutants

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