Advances in Polymer Membranes

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

Deadline for manuscript submissions: closed (15 October 2022) | Viewed by 6852

Special Issue Editors


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Guest Editor
Laboratory of Membrane and Catalytic Processes, Nizhny Novgorod State Technical University n.a. R.E. Alekseev, 24 Minin str., 603950 Nizhny Novgorod, Russia
Interests: polymeric membranes; gas separation; surface structure; surface free energy; atomic force microscopy

E-Mail Website
Guest Editor
Laboratory of Membrane and Catalytic Processes, Nanotechnology and Biotechnology Department, Nizhny Novgorod State Technical University n.a. R.E. Alekseev, 603950 Nizhny Novgorod, Russia
Interests: polymeric membranes; gas separation; gas hydrates; spectroscopy; ionic liquids; chemical engineering

E-Mail Website
Guest Editor
Laboratory of Membrane and Catalytic Processes, Nanotechnology and Biotechnology Department, Nizhny Novgorod State Technical University n.a. R.E. Alekseev, 603950 Nizhny Novgorod, Russia
Interests: chemical engineering; gas separation; purification; polymeric membranes; Aspen Plus; gas chromatography

Special Issue Information

Dear Colleagues,

Membranes are a selectively permeable barrier between two phases. This barrier can be both porous (e.g., filtration) and non-porous (e.g., solution-diffusion gas transport). Today, the application fields of membrane materials are quite wide: from gas separation and pervaporation processes to everyday use in clothing, footwear, packaging and building materials.

Membranes are made from both inorganic (metal, ceramic, glass, etc.) and organic (including polymer) materials. This Special Issue is devoted to advances in polymer membranes, including the synthesis and modification of polymers for membrane applications (namely gas separation and pervaporation), new approaches to the study of the functional properties for polymeric membranes, and new schemes for organizing separation processes to enhance the effectiveness of polymeric membranes.

Dr. Tatyana Sazanova
Dr. Anton Petukhov
Dr. Maxim Trubyanov
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

  • polymeric membranes
  • gas separation
  • pervaporation
  • purification
  • process design

Published Papers (2 papers)

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25 pages, 3845 KiB  
Article
An Efficient Technique for Ammonia Capture in the Haber–Bosch Process Loop—Membrane-Assisted Gas Absorption
by Anton N. Petukhov, Artem A. Atlaskin, Kirill A. Smorodin, Sergey S. Kryuchkov, Dmitriy M. Zarubin, Maria E. Atlaskina, Anastasia N. Petukhova, Anna N. Stepakova, Anna A. Golovacheva, Artem N. Markov, Ekaterina A. Stepanova, Andrey V. Vorotyntsev and Ilya V. Vorotyntsev
Polymers 2022, 14(11), 2214; https://doi.org/10.3390/polym14112214 - 30 May 2022
Cited by 1 | Viewed by 2360
Abstract
The present study continues the development and enhancement of a highly efficient unique hybrid technique—membrane-assisted gas absorption in designing the separation unit, which provides the improvement in mass-transfer of a target component during the ammonia capture process from a process loop of the [...] Read more.
The present study continues the development and enhancement of a highly efficient unique hybrid technique—membrane-assisted gas absorption in designing the separation unit, which provides the improvement in mass-transfer of a target component during the ammonia capture process from a process loop of the Haber–Bosch technological route. In order to minimize the absorbent volume to membrane area ratio, the special separation cell was designed based on a combination of two types of hollow fiber membranes, dense gas separation membrane and porous pervaporation membrane. The separation performance tests were implemented under two sets of conditions, sweeping the bore (permeate) side of a cell with helium and hydrogen-nitrogen mix. For both cases, the membrane-assisted gas absorption cell demonstrated high separation efficiency, and the ammonia concentration in the permeate was never lower than 81 mol%; meanwhile, under the hydrogen-nitrogen bore sweep conditions, the ammonia concentration in the permeate reached 97.5 mol% in a single-step process. Nevertheless, there is a product purity–recovery rate trade-off, which is a typical issue for separation processes. Full article
(This article belongs to the Special Issue Advances in Polymer Membranes)
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Review

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25 pages, 63584 KiB  
Review
Electrospun Nanofiber-Based Membranes for Water Treatment
by Yixuan Tang, Zhengwei Cai, Xiaoxia Sun, Chuanmei Chong, Xinfei Yan, Mingdi Li and Jia Xu
Polymers 2022, 14(10), 2004; https://doi.org/10.3390/polym14102004 - 13 May 2022
Cited by 25 | Viewed by 3766
Abstract
Water purification and water desalination via membrane technology are generally deemed as reliable supplementaries for abundant potable water. Electrospun nanofiber-based membranes (ENMs), benefitting from characteristics such as a higher specific surface area, higher porosity, lower thickness, and possession of attracted broad attention, has [...] Read more.
Water purification and water desalination via membrane technology are generally deemed as reliable supplementaries for abundant potable water. Electrospun nanofiber-based membranes (ENMs), benefitting from characteristics such as a higher specific surface area, higher porosity, lower thickness, and possession of attracted broad attention, has allowed it to evolve into a promising candidate rapidly. Here, great attention is placed on the current status of ENMs with two categories according to the roles of electrospun nanofiber layers: (i) nanofiber layer serving as a selective layer, (ii) nanofiber layer serving as supporting substrate. For the nanofiber layer’s role as a selective layer, this work presents the structures and properties of conventional ENMs and mixed matrix ENMs. Fabricating parameters and adjusting approaches such as polymer and cosolvent, inorganic and organic incorporation and surface modification are demonstrated in detail. It is crucial to have a matched selective layer for nanofiber layers acting as a supporting layer. The various selective layers fabricated on the nanofiber layer are put forward in this paper. The fabrication approaches include inorganic deposition, polymer coating, and interfacial polymerization. Lastly, future perspectives and the main challenges in the field concerning the use of ENMs for water treatment are discussed. It is expected that the progress of ENMs will promote the prosperity and utilization of various industries such as water treatment, environmental protection, healthcare, and energy storage. Full article
(This article belongs to the Special Issue Advances in Polymer Membranes)
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