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Special Issue "Polymer Composites for Advanced Water Treatment Applications"

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A special issue of Polymers (ISSN 2073-4360). This special issue belongs to the section "Polymer Composites and Nanocomposites".

Deadline for manuscript submissions: 30 June 2023 | Viewed by 2013

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Special Issue Editors

Dr. Verona Iordache

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Guest Editor

National Institute for Research&Development in Chemistry and Petrochemistry ICECHIM, Bucharest, Romania
Interests: composite materials; hybrid structures; advanced water treatment processes

Prof. Dr. Francois Xavier Perrin

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Matériaux Polymères Interfaces Environnement Marin, MAPIEM, Université de Toulon, La Garde, France
Interests: hybrid coatings; nanocomposites; hydrogels

Dr. Luísa Durães

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Department of Chemical Engineering, Chemical Process Engineering and Forest Products Research Centre, University of Coimbra, Coimbra, Portugal
Interests: aerogels; nanoparticles; soft-solution synthesis; environmental remediation; thermal insulation materials
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Special Issue Information

Dear Colleagues,

The worldwide water demand is becoming an important issue for the increasing population, in which case the scientific communities can respond with more industry-focused solutions in terms of advanced products and processes for water purification, waste water treatment and recycling, and water desalination. Based on technological advances during the last years in water treatment and the variety of composite polymer materials developed recently, this special issue is dedicated to original approaches and/or extremely improved products and processes applicable in water treatment with the focus on inorganic/organic pollutants removal and desalination. Therefore, original papers, reviews, short communications and case studies, on the topic of polymer composites, hybrid polymer and biopolymer structures, and interpenetrated networks applicable in the water treatment field are welcomed. Original applications and/or development of green technologies for water treatment are also encouraged.

Dr. Verona Iordache
Prof. Dr. Francois Xavier Perrin
Prof. Dr. Luísa Durães
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. Polymers is an international peer-reviewed open access semimonthly 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 2400 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

composite materials
hybrid polymers
biopolymer structures
interpenetrated networks
advanced treatment processes
water purification
water desalination

Published Papers (3 papers)

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Research

Open AccessArticle

Synthesis of a Polymer Composite Based on a Modified Aminohumic Acid Tuned to a Sorbed Copper Ion

Alma Khasenovna Zhakina

Zainulla Muldakhmetov

Tatyana Sergeevna Zhivotova

Bibigul Bagdatovna Rakhimova

Yevgeniy Petrovich Vassilets

Oxana Vasilievna Arnt

Arailym Alzhankyzy

and

Almat Maulenuly Zhakin

Polymers 2023, 15(6), 1346; https://doi.org/10.3390/polym15061346 - 08 Mar 2023

Viewed by 297

Abstract

A composite based on amino-containing humic acid with the immobilization of multi-walled carbon nanotubes preliminarily tuned to a copper ion has been obtained. The synthesis of a composite pre-tuned for sorption by the local arrangement of macromolecular regions was obtained by introducing multi-walled carbon nanotubes and a molecular template into the composition of humic acid, followed by copolycondensation with acrylic acid amide and formaldehyde. The template was removed from the polymer network by acid hydrolysis. As a result of this tuning, the macromolecules of the composite “remember” conformations that are favorable for sorption, i.e., adsorption centers are formed in the polymer network of the composite, capable of repeated, highly specific interaction with the template and the highly selective extraction of target molecules from the solution. The reaction was controlled by the added amine and by the content of oxygen-containing groups. The structure and composition of the resulting composite were proven by physicochemical methods. A study of the sorption properties of the composite showed that after acid hydrolysis, the capacity increased sharply compared to a similar composite without tuning and a composite before hydrolysis. The resulting composite can be used as a selective sorbent in the process of wastewater treatment. Full article

(This article belongs to the Special Issue Polymer Composites for Advanced Water Treatment Applications)

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Open AccessArticle

Introducing Semi-Interpenetrating Networks of Chitosan and Ammonium-Quaternary Polymers for the Effective Removal of Waterborne Pathogens from Wastewaters

and

Polymers 2023, 15(5), 1091; https://doi.org/10.3390/polym15051091 - 22 Feb 2023

Viewed by 540

Abstract

The present work aims to study the influence of ammonium-quaternary monomers and chitosan, obtained from different sources, upon the effect of semi-interpenetrating polymer network (semi-IPN) hydrogels upon the removal of waterborne pathogens and bacteria from wastewater. To this end, the study was focused on using vinyl benzyl trimethylammonium chloride (VBTAC), a water-soluble monomer with known antibacterial properties, and mineral-enriched chitosan extracted from shrimp shells, to prepare the semi-IPNs. By using chitosan, which still contains the native minerals (mainly calcium carbonate), the study intends to justify that the stability and efficiency of the semi-IPN bactericidal devices can be modified and better improved. The new semi-IPNs were characterized for composition, thermal stability and morphology using well-known methods. Swelling degree (SD%) and the bactericidal effect assessed using molecular methods revealed that hydrogels made of chitosan derived from shrimp shell demonstrated the most competitive and promising potential for wastewater (WW) treatment. Full article

(This article belongs to the Special Issue Polymer Composites for Advanced Water Treatment Applications)

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Open AccessArticle

Poly(N-vinylpyrrolidone)–Laponite XLG Nanocomposite Hydrogels: Characterization, Properties and Comparison with Divinyl Monomer-Crosslinked Hydrogels

and

Polymers 2022, 14(19), 4216; https://doi.org/10.3390/polym14194216 - 08 Oct 2022

Cited by 1 | Viewed by 719

Abstract

The present work investigates, for the first time, the synthesis and properties of some nanocomposite (NC) hydrogels obtained by the aqueous solution free radical polymerization of N-vinylpyrrolidone (NVP) in the presence of Laponite XLG (XLG) as a crosslinker, in comparison with the corresponding hydrogels prepared by using two conventional crosslinking divinyl monomers: N,N′-methylenebisacrylamide (MBA) and tri(ethylene glycol) divinyl ether (DVE). The structure and properties of the hydrogels were studied by FTIR, TEM, XRD, SEM, swelling and rheological and compressive mechanical measurements. The results showed that DVE and XLG are much better crosslinking agents for the synthesis of PNVP hydrogels than MBA, leading to larger gel fractions and more homogeneous network hydrogels. The hydrogels crosslinked by either DVE or XLG displayed comparable viscoelastic and compressive mechanical properties under the experimental conditions employed. The properties of the XLG-crosslinked hydrogels steadily improved as the clay content increased. The addition of XLG as a second crosslinker together with a divinyl monomer strongly enhanced the material properties in comparison with the hydrogels crosslinked by only one of the crosslinkers involved. The FTIR analyses suggested that the crosslinking of the NC hydrogels was the result of two different interactions occurring between the clay platelets and the PNVP chains. Laponite XLG displayed a uniform distribution within the NC hydrogels, the clay being mostly exfoliated. However, a small number of platelet agglomerations were still present. The PNVP hydrogels described here may find applications for water purification and in the biomedical field as drug delivery systems or wound dressings. Full article

(This article belongs to the Special Issue Polymer Composites for Advanced Water Treatment Applications)

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