Recent Advances in Polymeric Membranes—Preparation and Applications (2nd Edition)

A special issue of Membranes (ISSN 2077-0375). This special issue belongs to the section "Membrane Fabrication and Characterization".

Deadline for manuscript submissions: 15 February 2026 | Viewed by 129

Special Issue Editors


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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

E-Mail Website
Guest Editor
Centro de Investigación Científica de Yucatán A.C., Merida 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

Special Issue Information

Dear Colleagues,

Following the success of “Recent Advances in Polymeric Membranes—Preparation and Applications” (https://www.mdpi.com/journal/membranes/special_issues/0VXE047BK8), we are pleased to announce the launch of the second edition of this Special Issue.

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 using varied techniques and with several configurations depending on their applications. The development of new polymeric materials and their 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 in the preparation, modification, and performance of polymeric membranes for water treatment, energy saving and/or energy storage, gas separation, and biomedical applications.

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

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Published Papers (1 paper)

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Research

0 pages, 3747 KB  
Article
Recycled Polystyrene as a Sustainable Material for Hollow Fiber Membranes in Dye Filtration
by Mauricio Huhn-Ibarra, Libia Madai Itza-Uitzil, Marcial Yam-Cervantes, Abigail González-Díaz, Fernando José Zapata-Catzin, Javier Ivan Cauich-Cupul, Manuel Aguilar-Vega and Maria Ortencia González-Díaz
Membranes 2025, 15(10), 285; https://doi.org/10.3390/membranes15100285 - 23 Sep 2025
Abstract
Expanded polystyrene (EPS) waste was chemically modified by sulfonation to obtain sulfonated EPS (sEPS), which was subsequently blended with virgin polyphenylsulfone (PPSU) at concentrations ranging from 10 to 50% to elaborate hollow fiber membranes for dye removal. The membranes were elaborated by non-solvent-induced [...] Read more.
Expanded polystyrene (EPS) waste was chemically modified by sulfonation to obtain sulfonated EPS (sEPS), which was subsequently blended with virgin polyphenylsulfone (PPSU) at concentrations ranging from 10 to 50% to elaborate hollow fiber membranes for dye removal. The membranes were elaborated by non-solvent-induced phase separation and characterized by scanning electron microscopy, mechanical properties, antifouling, water flux measurements, and dye rejection performance. Scanning electron microscopy images of PPSU/sEPS blends showed well-defined membrane cross-sections with no polymer segregation up to 30% recycled EPS content, indicating improved compatibility due to EPS sulfonation. The HFMs present mean pore radii ranging from 4.2 ± 0.5 to 11.1 ± 1.0 nm with porosity up to 80%. Water flux improved significantly from 3.1 to 21.2 L m−2 h−1 at 2 bar as sEPS content increased. Dye rejection performance was promising, with Reactive Black 5 rejection ranging from 77% to 99%. The 80/20s PPSU/sEPS membrane showed the highest Reactive Black 5 rejection at 98.3% and revealed a 70.3% rejection in a 24 h dye mixture test. Furthermore, the 70/30s displayed superior anti-fouling properties, achieving a 99.3% flux recovery ratio in a xanthan gum solution at 2 bar. This study demonstrates a novel approach to transform EPS waste into high-performance hollow fiber membrane with competitive antifouling and dye separation properties. Full article
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