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Membranes
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Track-etched Membranes: Formation Features and Applications
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Track-etched Membranes: Formation Features and Applications

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

Deadline for manuscript submissions: closed (28 February 2021) | Viewed by 10097

Special Issue Editor

Dr. Ilya V. Korolkov

E-Mail Website
Guest Editor
Senior researcher of the Institute of Nuclear Physics of the Republic of Kazakhstan, 050032, Ibragimov str., 1, Almaty, Kazakhstan
Interests: track-etched membranes; membrane distillation; sensing; graft polymerization; nanostructured materials

Special Issue Information

Dear Colleagues,

Ion-track technique allows the fabrication of a wide range of polymeric membranes with specific functionalities. Ion-track membranes are characterized by precisely controllable and reproducible pore geometry, pore density (1-109 pore/cm2 and pore size (nm-µm) that ensured its wide application in precision separation, membrane distillation, filtration, catalysis, electrochemical sensors, as templates for nanostructure synthesis, as response switching membrane to changing temperature, pH and other.

This Special Issue seeks contributions from all both basic and applied research groups that are currently engaged in the ion-track membrane research and development to reflect the current state and the cutting-edge progress of ion-track membranes preparation for the different processes and applications.

Dr. Ilya V. Korolkov
Guest Editor

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

  • ion-track membranes
  • preparation of ion-track membranes
  • irradiation of polymers by swift heavy iona
  • membrane modification
  • water treatment
  • template synthesis of nanostructure
  • membrane sensors
  • membranes in catalysis

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Published Papers (3 papers)

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Research

19 pages, 4918 KiB  
Article
Kinetic and Isotherm Study of As(III) Removal from Aqueous Solution by PET Track-Etched Membranes Loaded with Copper Microtubes
by Alyona V. Russakova, Liliya Sh. Altynbaeva, Murat Barsbay, Dmitriy A. Zheltov, Maxim V. Zdorovets and Anastassiya A. Mashentseva
Membranes 2021, 11(2), 116; https://doi.org/10.3390/membranes11020116 - 6 Feb 2021
Cited by 19 | Viewed by 2438
Abstract
This paper reports on the synthesis and structure elucidation of track-etched membranes (TeMs) with electrolessly deposited copper microtubes (prepared in etched-only and oxidized polyethylene terephthalate (PET) TeMs), as well as on the comparative testing of arsenic (III) ion removal capacities through bath adsorption [...] Read more.
This paper reports on the synthesis and structure elucidation of track-etched membranes (TeMs) with electrolessly deposited copper microtubes (prepared in etched-only and oxidized polyethylene terephthalate (PET) TeMs), as well as on the comparative testing of arsenic (III) ion removal capacities through bath adsorption experiments. The structure and composition of composites were investigated by X-ray diffraction technique and scanning electron and atomic force microscopies. It was determined that adsorption followed pseudo-second-order kinetics, and the adsorption rate constants were calculated. A comparative study of the applicability of the adsorption models of Langmuir, Freundlich, and Dubinin–Radushkevich was carried out in order to describe the experimental isotherms of the prepared composite TeMs. The constants and parameters of all of the above equations were determined. By comparing the regression coefficients R2, it was shown that the Freundlich model describes the experimental data on the adsorption of arsenic through the studied samples better than others. Free energy of As(III) adsorption on the samples was determined using the Dubinin–Radushkevich isotherm model and was found to be 17.2 and 31.6 kJ/mol for Cu/PET and Cu/Ox_PET samples, respectively. The high EDr value observed for the Cu/Ox_PET composite indicates that the interaction between the adsorbate and the composite is based on chemisorption. Full article
(This article belongs to the Special Issue Track-etched Membranes: Formation Features and Applications)
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12 pages, 2632 KiB  
Article
Application of Silver-Loaded Composite Track-Etched Membranes for Photocatalytic Decomposition of Methylene Blue under Visible Light
by Anastassiya A. Mashentseva, Murat Barsbay, Nurgulim A. Aimanova and Maxim V. Zdorovets
Membranes 2021, 11(1), 60; https://doi.org/10.3390/membranes11010060 - 15 Jan 2021
Cited by 22 | Viewed by 3050
Abstract
In this study, the use of composite track-etched membranes (TeMs) based on polyethylene terephthalate (PET) and electrolessly deposited silver microtubes (MTs) for the decomposition of toxic phenothiazine cationic dye, methylene blue (MB), under visible light was investigated. The structure and composition of the [...] Read more.
In this study, the use of composite track-etched membranes (TeMs) based on polyethylene terephthalate (PET) and electrolessly deposited silver microtubes (MTs) for the decomposition of toxic phenothiazine cationic dye, methylene blue (MB), under visible light was investigated. The structure and composition of the composite membranes were elucidated by scanning electron microscopy, energy dispersive spectroscopy, and X-ray diffraction technique. Under visible light irradiation, composite membrane with embedded silver MTs (Ag/PET) displayed high photocatalytic efficiency. The effects of various parameters such as initial dye concentration, temperature, and sample exposure time on the photocatalytic degradation process were studied. The decomposition reaction of MB was found to follow the Langmuir–Hinshelwood mechanism and a pseudo-first-order kinetic model. The degradation kinetics of MB accelerated with increasing temperature and activation energy, Ea, was calculated to be 20.6 kJ/mol. The reusability of the catalyst was also investigated for 11 consecutive runs without any activation and regeneration procedures. The Ag/PET composite performed at high degradation efficiency of over 68% after 11 consecutive uses. Full article
(This article belongs to the Special Issue Track-etched Membranes: Formation Features and Applications)
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15 pages, 10074 KiB  
Article
Modification of PET Ion-Track Membranes by Silica Nanoparticles for Direct Contact Membrane Distillation of Salt Solutions
by Ilya V. Korolkov, Azhar Kuandykova, Arman B. Yeszhanov, Olgun Güven, Yevgeniy G. Gorin and Maxim V. Zdorovets
Membranes 2020, 10(11), 322; https://doi.org/10.3390/membranes10110322 - 30 Oct 2020
Cited by 15 | Viewed by 3783
Abstract
The paper describes desalination by membrane distillation (MD) using ion-track membranes. Poly(ethylene terephthalate) (PET) ion-track membranes were hydrophobized by the immobilization of hydrophobic vinyl-silica nanoparticles (Si NPs). Si NPs were synthesized by the sol-gel method, and the addition of the surfactant led to [...] Read more.
The paper describes desalination by membrane distillation (MD) using ion-track membranes. Poly(ethylene terephthalate) (PET) ion-track membranes were hydrophobized by the immobilization of hydrophobic vinyl-silica nanoparticles (Si NPs). Si NPs were synthesized by the sol-gel method, and the addition of the surfactant led to the formation of NPs with average size of 40 nm. The thermal initiator fixed to the surface of membranes allowed attachment of triethoxyvinyl silane Si NPs at the membrane surface. To further increase hydrophobicity, ethoxy groups were fluorinated. The morphology and chemical structure of prepared membranes were characterized by SEM, FTIR, XPS spectroscopy, and a gas permeability test. Hydrophobic properties were evaluated by contact angle (CA) and liquid entry pressure (LEP) measurements. Membranes with CA 125–143° were tested in direct contact membrane distillation (DCMD) of 30 g/L saline solution. Membranes showed water fluxes from 2.2 to 15.4 kg/(m2·h) with salt rejection values of 93–99%. Full article
(This article belongs to the Special Issue Track-etched Membranes: Formation Features and Applications)
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