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Membranes
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Polymer Inclusion Membranes, Adapted and Efficient Tools for a Green...
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Polymer Inclusion Membranes, Adapted and Efficient Tools for a Green and Sustainable Chemistry

A special issue of Membranes (ISSN 2077-0375). This special issue belongs to the section "Polymeric Membranes".

Deadline for manuscript submissions: closed (31 December 2021) | Viewed by 3451

Special Issue Editors

Prof. Dr. Miloudi Hlaíbi

E-Mail Website
Guest Editor
Laboratoire Génie des Matériaux pour Environnement et Valorisation (GeMEV), Faculté des sciences Aïn Chock, Université Hassan II Casablanca, Casablanca 20000, Morocco
Interests: affinity polymer membranes (synthesis and characterization); mechanisms and control aspects of oriented membrane processes; purification of industrial solutions; extraction of compounds with high application potential; recovery of waste according to green chemistry principles
Prof. Dr. Laurent Lebrun

E-Mail Website
Guest Editor
Laboratory PBS, UMR CNRS 6270, University of Rouen Normandy, Blv De Broglie, 76821 Mont-Saint-Aignan CEDEX, France
Interests: polymers (synthesis and characterization); membranes; barrier materials and the use of polymers for the improvement of the environment (biocomposites, packaging materials, gas separation, viral clearance, wastewater treatments)
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Stéphane Marais

E-Mail Website
Guest Editor
Laboratoire PBS-UMR 6270 CNRS-INSA, Université de Rouen, Bâtiment Pierre-Louis Dulong, Boulevard Maurice de Broglie, 76000 Rouen, France
Interests: permeation/sorption; polymeric membranes; hybrid membranes; nanocomposites; multilayers; membrane modification; conductive membranes

Special Issue Information

Dear Colleagues,

Membrane processes are considered successful techniques for the treatment of liquid industrial effluents. They aim to eliminate or store by extraction of pollutants, such as pharmaceutical principles, dyes, and heavy metals, or to extract and recover under mild conditions several sensitive compounds with added value from industrial and agricultural liquid discharges. These processes perfectly meet several sustainable development objectives and green chemistry principles. Indeed, they constitute a specific alternative to the old treatment and separation techniques, very polluting (extraction by solvent, chemical precipitation, etc.) and they are simpler to implement, efficient, and more energy efficient. These processes provide green, environmentally friendly, and sustainable platforms with economic benefits.

This Special Issue is dedicated to polymer inclusion membranes, which are performant tools for facilitated extraction oriented processes. Manuscripts with themes oriented towards different environmental applications, will be reviewed for publication in this Special Issue. In particular, the treatment of effluents contaminated by organic pollutants or toxic metal ions, the improvement of industrial processes for better, clean, and efficient production and the valorization of industrial and agricultural waste rich in value-added compounds. Papers that report the influence of the temperature factor on the performance of membranes and describe the mechanisms of the processes carried out will have a special treatment.

After this Special Issue, a conference will be organized by the Guest Editors and sponsored by the Membranes journal around the themes treated and published in this issue and more precisely in the fields of development, characterization, and applications of PIMs membranes. Benefits for participating in this event will be granted to authors who have published work in this Special Issue.

Prof. Miloudi Hlaíbi
Prof. Laurent Lebrun
Prof. Stéphane Marais
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Membranes is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2200 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Polymer Inclusion Membranes (PIMs)
  • Oriented membrane processes
  • Valorization of liquid discharges Mechanisms and control aspects
  • Green chemistry for sustainable development

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Published Papers (1 paper)

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Research

22 pages, 4387 KiB  
Article
Novel Poly(Vinylidene Fluoride)/Montmorillonite Polymer Inclusion Membrane: Application to Cr(VI) Extraction from Polluted Water
by Ferhat Sellami, Ounissa Kebiche-Senhadji, Stéphane Marais, Charles Lanel and Kateryna Fatyeyeva
Membranes 2021, 11(9), 682; https://doi.org/10.3390/membranes11090682 - 1 Sep 2021
Cited by 10 | Viewed by 2788
Abstract
Novel hybrid polymer inclusion membranes (PIMs) based on poly(vinylidene fluoride) (PVDF) (polymer matrix) and Aliquat 336 (ion carrier) and containing native sodium (Cloisite Na+ (CNa)) and organo-modified (Cloisite 30B (C30B)) Montmorillonites were elaborated and tested for the removal of toxic Cr(VI) ions [...] Read more.
Novel hybrid polymer inclusion membranes (PIMs) based on poly(vinylidene fluoride) (PVDF) (polymer matrix) and Aliquat 336 (ion carrier) and containing native sodium (Cloisite Na+ (CNa)) and organo-modified (Cloisite 30B (C30B)) Montmorillonites were elaborated and tested for the removal of toxic Cr(VI) ions from the aqueous solution. The influence of the nanoclay incorporation on the physicochemical properties of PVDF-based PIMs was studied and the resulting membrane transport properties of the Cr(VI) ions were investigated in detail. The water contact angle measurements reveal that the incorporation of the CNa nanofiller affects the membrane wettability as less hydrophilic surface is obtained in this case—~47° in the presence of CNa as compared with ~15° for PIMs with C30B. The membrane rigidity is found to be dependent on the type and size of the used Montmorillonite. The increase of Young’s modulus is higher when CNa is incorporated in comparison with C30B. The stiffness of the PIM is strongly increased with CNa amount (four times higher with 30 wt %) which is not the case for C30B (only 1.5 times). Higher Cr(VI) permeation flux is obtained for PIMs containing CNa (~2.7 µmol/(m2·s)) owing to their porous structure as compared with membranes loaded with C30B and those without filler (~2 µmol/(m2·s) in both cases). The PIM with 20 wt % of native sodium Montmorillonite revealed satisfactory stability during five cycles of the Cr(VI) transport due to the high membrane rigidity and hydrophobicity. Much lower macromolecular chain mobility in this case allows limiting the carrier loss, thus increasing the membrane stability. On the contrary, a deterioration of the transport performance is recorded for the membrane filled with C30B and that without filler. The obtained results showed the possibility to extend the PIM lifetime through the incorporation of nanoparticles that diminish the carrier loss (Aliquat 336) from the membrane into the aqueous phase by limiting its mobility within the membrane by tortuosity effect and membrane stiffening without losing its permselective properties. Full article
(This article belongs to the Special Issue Polymer Inclusion Membranes, Adapted and Efficient Tools for a Green and Sustainable Chemistry)
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