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Special Issue "Polymeric Membranes: Preparation and Application"

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Thin Films and Interfaces".

Deadline for manuscript submissions: closed (10 August 2022) | Viewed by 1990

Special Issue Editors

A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninsky Prospect 29, 119991 Moscow, Russia
Interests: membrane design; membrane fabrication; membrane-based separation processes; high-throughput techniques; industry oriented applications
Special Issues, Collections and Topics in MDPI journals
National Research Council of Italy, Institute on Membrane Technology, CNR-ITM Via P. Bucci 17/C, 87036 Rende (CS), Italy
Interests: membrane science and membrane bioengineering; nanostructured biohybrid membranes; biocatalytic membrane reactors; membrane emulsification; integrated membrane processes for water, biotechnology; pharmaceutical and biorefinery
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Membrane separation is continuously gaining attention over the last few decades due to its low-energy consumption, the ease of scaling it up, and its flexibility in operation. It has been already successfully used in the industry and for municipal needs including desalination, water treatment, gas separation, and food applications. However, the efficiency of the separation process is mostly attributed to the membrane performance. This Special Issue will highlight the recent advances in the preparation of novel polymeric membranes for different kind of applications like gas separation, filtration of aqueous and non-aqueous media, membrane contactor systems, (waste)water treatment and other areas.

Dr. Alexey Volkov
Dr. Lidietta Giorno
Guest Editors

Manuscript Submission Information

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  • membrane
  • membrane preparation
  • gas separation
  • liquid separation

Published Papers (1 paper)

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12 pages, 4157 KiB  
Acid-Resistance Enhancement of Thin-Film Composite Membrane Using Barrier Effect of Graphene Oxide Nanosheets
Materials 2021, 14(12), 3151; - 08 Jun 2021
Cited by 4 | Viewed by 1554
In this study, the effect of graphene oxide nanosheets (GONs) embedded in a thin-film composite (TFC) polyamide (PA) membrane on the acid resistance of the membrane was investigated by comparison with the effect of oxidized single-walled carbon nanotubes (o-SWNTs). Both GONs and o-SWNTs [...] Read more.
In this study, the effect of graphene oxide nanosheets (GONs) embedded in a thin-film composite (TFC) polyamide (PA) membrane on the acid resistance of the membrane was investigated by comparison with the effect of oxidized single-walled carbon nanotubes (o-SWNTs). Both GONs and o-SWNTs increased the hydrophilicity of the membranes and caused the formation of ridges and clustered bumps on the surfaces, resulting in slightly improved water permeability. However, the o-SWNTs-embedded membrane did not show a difference in acid resistance depending on the concentration of embedded material, but the acid resistance of the GONs-embedded membrane increased with increasing concentration. The acid resistance of the GONs-embedded membranes appears to be mainly due to the barrier effect caused by the nanosheet shape of the GONs along with a sacrificial role of the PA layer protruded by the addition of GONs and the decrease of acid reaction sites by the hydrogen bonding between GONs and PA. When the TFC PA membrane was prepared with a high amount (300 ppm) of the GONs without considering aggregation of GONs, membrane selectivity exceeding 95% was maintained 4.7 times longer than the control TFC membrane. This study shows that the acid resistance can be enhanced by the use of GONs, which give a barrier effect to the membrane. Full article
(This article belongs to the Special Issue Polymeric Membranes: Preparation and Application)
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