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Polymer Membranes for Gas and Liquid Filtration Techniques

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

Deadline for manuscript submissions: 31 October 2025 | Viewed by 358

Special Issue Editors


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Guest Editor
School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
Interests: polymer membrane; electrocatalyst; hydrogen energy; water filtration; energy storage devices; polymer separator; polymer electrolyte membrane
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
Interests: microbial fuel cell; membrane; photocatalyst; sonocatalyst; dye degradation

Special Issue Information

Dear Colleagues,

Gas and liquid purification methods are becoming increasingly vital worldwide in response to rising concerns regarding contamination resulting from industrialization. Eliminating pollution from gas and liquid is a crucial aspect in protecting the environment. The design and implementation of polymer-based films/membranes for gas and liquid separations are crucial for contemporary approaches. This Special Issue, “Polymer Membranes for Gas and Liquid Filtration Techniques”, primarily covers polymer materials as membrane/film/separator materials for gas and liquid filtration and purification systems. The scope of interest includes, but is not limited to, the following topics:

  • Polymer-based blend membranes for gas and liquid filtration;
  • Polymer-based organic/inorganic composite membranes for gas and liquid filtration;
  • Biopolymers and their composites for gas and liquid filtration;
  • Polymer-based aerogels for gas and liquid filtration;
  • MOF and COF for gas and liquid filtration;
  • Oil/water separation. 

Dr. Sadhasivam Thangarasu
Dr. Taehwan Oh
Dr. Gowthami Palanisamy
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 2700 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

  • gas phase filter
  • primary filters
  • secondary filters
  • separators
  • microfiltration
  • nanofiltration
  • ultrafiltration
  • polymer membrane

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Published Papers (1 paper)

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Research

17 pages, 5039 KiB  
Article
Comparative Study on Pervaporation Performance of Polyphosphazene Membranes with Different Fluorine Side Groups for Thiophene/n-Heptane Separation
by Bingcong Xu, Xingmei Zhang, Wenwen He and Xiaolong Han
Polymers 2025, 17(11), 1573; https://doi.org/10.3390/polym17111573 - 5 Jun 2025
Viewed by 283
Abstract
In recent years, polyphosphazene (POP) membranes have been gaining more and more attention owing to their excellent pervaporation desulfurization performance. To develop new POP membranes, three kinds of POPs with different side groups, Poly[bis(trifluoroethoxy)phosphazene] (PTFEP), Poly[bis(trifluorobutoxy)phosphazene] (PTFBP), and Poly[bis(octafluoropentyloxy)phosphazene] (POFPP), were synthesized. The [...] Read more.
In recent years, polyphosphazene (POP) membranes have been gaining more and more attention owing to their excellent pervaporation desulfurization performance. To develop new POP membranes, three kinds of POPs with different side groups, Poly[bis(trifluoroethoxy)phosphazene] (PTFEP), Poly[bis(trifluorobutoxy)phosphazene] (PTFBP), and Poly[bis(octafluoropentyloxy)phosphazene] (POFPP), were synthesized. The NMR spectroscopy demonstrated that POPs with a designed structure were successfully prepared. Subsequently, the composite membranes based on these POPs were fabricated by solution casting. The influence of side groups on the desulfurization performance of membranes was systematically evaluated via a pervaporation test. Among these membranes, the PTFBP membrane exhibited the highest separation efficiency, significantly outperforming other membrane types with a permeation flux of 0.284 kg·m−2·h−1 at 200 ppm and 85 °C, along with a sulfur enrichment factor of 26.48. In addition, the effects of temperature and feed concentration on separation performance were investigated in detail. Full article
(This article belongs to the Special Issue Polymer Membranes for Gas and Liquid Filtration Techniques)
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