A Single Step Preparation of Photothermally Active Polyvinylidene Fluoride Membranes Using Triethyl Phosphate as a Green Solvent for Distillation Applications

Membrane distillation is a growing technology that can address the growing problem of water shortage. The implementation of renewable energy and a reduction in the environmental impact of membrane production could improve the sustainability of this process. With this perspective, porous hydrophobic...

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Autores principales:	Marcello Pagliero, Antonio Comite, Camilla Costa, Ilaria Rizzardi, Omar Soda
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	membrane distillation carbon black photothermal green solvent PVDF Chemical technology TP1-1185 Chemical engineering TP155-156
Acceso en línea:	https://doaj.org/article/33c4f7f7d2e6465c9335b625ba07ed2e
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id	oai:doaj.org-article:33c4f7f7d2e6465c9335b625ba07ed2e
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spelling	oai:doaj.org-article:33c4f7f7d2e6465c9335b625ba07ed2e2021-11-25T18:20:10ZA Single Step Preparation of Photothermally Active Polyvinylidene Fluoride Membranes Using Triethyl Phosphate as a Green Solvent for Distillation Applications10.3390/membranes111108962077-0375https://doaj.org/article/33c4f7f7d2e6465c9335b625ba07ed2e2021-11-01T00:00:00Zhttps://www.mdpi.com/2077-0375/11/11/896https://doaj.org/toc/2077-0375Membrane distillation is a growing technology that can address the growing problem of water shortage. The implementation of renewable energy and a reduction in the environmental impact of membrane production could improve the sustainability of this process. With this perspective, porous hydrophobic polyvinylidene fluoride (PVDF) membranes were prepared using triethyl phosphate (TEP) as a green solvent, using the non-solvent induced phase separation technique. Different amounts of carbon black were added to dope solutions to improve the photothermal properties of the membranes and to enable direct heating by solar energy. By optimizing the preparation conditions, membranes with porosity values as high as 87% were manufactured. Vacuum membrane distillation tests carried out using a concentrated NaCl solution at 50 °C showed distillate fluxes of up to 36 L/m<sup>2</sup> h and a complete salt rejection. Some preliminary studies on the photothermal performance were also conducted and highlighted the possibility of using such membranes in a direct solar membrane distillation configuration.Marcello PaglieroAntonio ComiteCamilla CostaIlaria RizzardiOmar SodaMDPI AGarticlemembrane distillationcarbon blackphotothermalgreen solventPVDFChemical technologyTP1-1185Chemical engineeringTP155-156ENMembranes, Vol 11, Iss 896, p 896 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	membrane distillation carbon black photothermal green solvent PVDF Chemical technology TP1-1185 Chemical engineering TP155-156
spellingShingle	membrane distillation carbon black photothermal green solvent PVDF Chemical technology TP1-1185 Chemical engineering TP155-156 Marcello Pagliero Antonio Comite Camilla Costa Ilaria Rizzardi Omar Soda A Single Step Preparation of Photothermally Active Polyvinylidene Fluoride Membranes Using Triethyl Phosphate as a Green Solvent for Distillation Applications
description	Membrane distillation is a growing technology that can address the growing problem of water shortage. The implementation of renewable energy and a reduction in the environmental impact of membrane production could improve the sustainability of this process. With this perspective, porous hydrophobic polyvinylidene fluoride (PVDF) membranes were prepared using triethyl phosphate (TEP) as a green solvent, using the non-solvent induced phase separation technique. Different amounts of carbon black were added to dope solutions to improve the photothermal properties of the membranes and to enable direct heating by solar energy. By optimizing the preparation conditions, membranes with porosity values as high as 87% were manufactured. Vacuum membrane distillation tests carried out using a concentrated NaCl solution at 50 °C showed distillate fluxes of up to 36 L/m<sup>2</sup> h and a complete salt rejection. Some preliminary studies on the photothermal performance were also conducted and highlighted the possibility of using such membranes in a direct solar membrane distillation configuration.
format	article
author	Marcello Pagliero Antonio Comite Camilla Costa Ilaria Rizzardi Omar Soda
author_facet	Marcello Pagliero Antonio Comite Camilla Costa Ilaria Rizzardi Omar Soda
author_sort	Marcello Pagliero
title	A Single Step Preparation of Photothermally Active Polyvinylidene Fluoride Membranes Using Triethyl Phosphate as a Green Solvent for Distillation Applications
title_short	A Single Step Preparation of Photothermally Active Polyvinylidene Fluoride Membranes Using Triethyl Phosphate as a Green Solvent for Distillation Applications
title_full	A Single Step Preparation of Photothermally Active Polyvinylidene Fluoride Membranes Using Triethyl Phosphate as a Green Solvent for Distillation Applications
title_fullStr	A Single Step Preparation of Photothermally Active Polyvinylidene Fluoride Membranes Using Triethyl Phosphate as a Green Solvent for Distillation Applications
title_full_unstemmed	A Single Step Preparation of Photothermally Active Polyvinylidene Fluoride Membranes Using Triethyl Phosphate as a Green Solvent for Distillation Applications
title_sort	single step preparation of photothermally active polyvinylidene fluoride membranes using triethyl phosphate as a green solvent for distillation applications
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/33c4f7f7d2e6465c9335b625ba07ed2e
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A Single Step Preparation of Photothermally Active Polyvinylidene Fluoride Membranes Using Triethyl Phosphate as a Green Solvent for Distillation Applications

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