Special Issue "New Findings and Properties of UF&NF Membranes in the Separation of Novel Products"

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

Deadline for manuscript submissions: 30 November 2023 | Viewed by 271

Special Issue Editor

Institute of Process Engineering (IVT), Johannes Kepler University Linz, Altenberger Str. 69, A-4040 Linz, Austria
Interests: characterization and modification of polymer membranes; synthesis and characterization of emulsion polymerization; isolation and cleaning of aromatic and natural products and active components; down-stream processing of natural and synthesised products
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Due to the increased energy costs, processes for the production and reprocessing of different products, which, for example, require a large amount of thermal energy for the separation of by-products or concentration, are coming under pressure to find and use less energy-intensive alternative separation processes. The aim is to reduce the proportion of fossil fuels in the manufacturing processes and thus also the associated CO2 emissions.

Pressure-driven membranes like NF- and UF-membranes show great potential in their application as an alternative to thermal separation processes.

NF and UF differ in their pore sizes, whereby NF has pores in the range of a few nm and UF in turn has pores from a few nm upwards to in the range of 50 to 100 nm. There is also a transition area from NF to UF, in which membranes either show NF separation behaviour or exhibit properties characteristic of UF in the separation process.

Different mechanisms describe the selectivity of NF or UF membranes for various complex separation tasks. The further development of prediction concepts and suitable descriptions is the focus of this special issue, which aims to deepen the fundamental understanding of the predominant phenomena of NF and UF processes.

In contrast, the dielectric exclusion mechanism according to Donnan, charge effects near the membrane surface in NF or exclusion effect according to molecular masses or molecular sizes in UF with and without charge effects and hydration describe the retention effect in the separation process.

Prof. Dr. Wolfgang Samhaber
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 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.


  • NF-membrane
  • UF-membrane
  • pressure-driven membrane
  • processing
  • product separation
  • recovery
  • alkaline, acidic, solvent containing liquors

Published Papers

This special issue is now open for submission.
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