Recent Advances in Polymeric Membranes—Preparation and Applications

A special issue of Membranes (ISSN 2077-0375). This special issue belongs to the section "Membrane Applications for Water Treatment".

Deadline for manuscript submissions: 28 February 2025 | Viewed by 534

Special Issue Editors


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Guest Editor
Centro de Investigación Científica de Yucatán A.C., Mérida 97205, Mexico
Interests: synthesis of functionalized block copolymers and their application as catalytic membranes; synthesis of Biobased polymers and recycling and reuse of polymers for circular economy
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
Materials Unit, Centro de Investigación Científica de Yucatán A.C., Merida 97205, Mexico
Interests: development of membranes for natural gas sweetening and production of high-value streams; membrane system for improved water desalination systems NF and RO; ionic membranes for fuel cell membranes and energy applications; membranes; gas separation; water treatment; ionic membranes
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Over the years, polymeric membrane technology has received significant attention due to its advantages, such as ease of operation, energy saving capability, compact size, environmental friendliness, and multiple applications. Polymeric membranes can be prepared by a wide variety of techniques and with several configurations depending on their applications. The development of new polymeric materials and the growing number of applications demands the development of better-suited membranes with different characteristics or new composite membranes and methods of preparation, as well as new funtionalization methods.

This Special Issue will highlight the most recent and applicable achievements regarding the preparation, modification, and performance of polymeric membranes for water treatment, energy savings and /or energy storage, gas separation, and membranes for biomedical applications.

Dr. María Ortencia González-Díaz
Dr. Manuel Aguilar Vega
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

  • polymeric membranes
  • water treatment
  • gas separation and membranes for biomedical applications
  • energy savings

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Published Papers (1 paper)

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Research

13 pages, 1960 KiB  
Article
Asymmetric Membranes Obtained from Sulfonated HIPS Waste with Potential Application in Wastewater Treatment
by Marcial Alfredo Yam-Cervantes, Rita Sulub-Sulub, Mauricio Hunh-Ibarra, Santiago Duarte, Erik Uc-Fernandez, Daniel Pérez-Canales, Manuel Aguilar-Vega and Maria Ortencia González-Díaz
Membranes 2024, 14(12), 247; https://doi.org/10.3390/membranes14120247 - 22 Nov 2024
Viewed by 370
Abstract
The recovery and reuse of high-impact polystyrene (HIPS) into high-value products is crucial for reducing environmental thermoplastics waste and promoting sustainable materials for various applications. In this study, asymmetric membranes obtained from sulfonated HIPS waste were used for salt and dye removals. The [...] Read more.
The recovery and reuse of high-impact polystyrene (HIPS) into high-value products is crucial for reducing environmental thermoplastics waste and promoting sustainable materials for various applications. In this study, asymmetric membranes obtained from sulfonated HIPS waste were used for salt and dye removals. The incorporation of sulfonic acid (-SO3H) groups into HIPS waste by direct chemical sulfonation with chlorosulfonic acid (CSA), at two different concentrations, was investigated to impart antifouling properties in membranes for water treatment. Asymmetric membranes from recycled HIPS, R-HIPS, R-HIPS-3, and R-HIPS-5 with 3 and 5% sulfonation degrees, respectively. Sulfonated HIPS shows a decrease in water contact angle (WCA) from 83.8° for recycled R-HIPS to 66.1° for R-HIPS-5, respectively. A WCA decrease leads to an increase in antifouling properties for R-HIPS-5, compared to non-sulfonated R-HIPS, which leads to a higher flux recovery ratio (FRR) and enhanced separation properties for sulfonated membranes. The HIPS-5 membrane exhibited the highest rejection rates for Reactive Black 5 dye (94%) and divalent salts (72% for MgSO4 and 67% for Na2SO4). The performance of the recycled HIPS asymmetric membranes is well correlated with porosity, water uptake, and the higher negative charge from the sulfonic acid groups present, which enhance the electrostatic repulsions of salts and dyes. Full article
(This article belongs to the Special Issue Recent Advances in Polymeric Membranes—Preparation and Applications)
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