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Membranes, Volume 13, Issue 7

July 2023 - 77 articles

Cover Story: Nanofiltration membranes are used in many industrial processes, as they retain many types of small molecules. The performance of these membranes fundamentally depends on the membrane pore radius and on the physical characteristics of the polymer on the active layer. Typically, the membrane pore radius is calculated mathematically based on the rejection of glucose, as it is an uncharged and fairly spherical molecule. However, closed membranes show very high glucose rejection values, resulting in an inconsistent membrane pore radius. Other smaller alcohol-based molecules can also be used, although they can act as solvents and interact with the membrane matrix. This study proposes to determine the pore radius of nanofiltration membranes based on the rejection of small amino acids, such as glycine, which show zero net charge at pH between 4.5 and 6.5. View this paper
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Articles (77)

  • Article
  • Open Access
4 Citations
3,084 Views
16 Pages

Design and Optimization of a Novel Hybrid Membrane–Electrochemical Hydrogen Pump Process for Recovering Helium from NRU off Gas

  • Wu Xiao,
  • Hao Wang,
  • Andi Cheng,
  • Hanli Wang,
  • Zhendong Yang,
  • Xuemei Wu,
  • Xiaobin Jiang and
  • Gaohong He

Due to the low boiling point of helium, the nitrogen-rich off gas of the nitrogen rejection unit (NRU) in the liquefied natural gas (LNG) plant usually contains a small amount of CH4, approximately 1–4% He, and associated gases, such as H2. How...

  • Article
  • Open Access
6 Citations
2,612 Views
13 Pages

To explore the application of forward osmosis (FO) technology in the organic solvent recovery field, we prepared a new solvent-resistant triple layer thin film composite (TFC) membrane on the PI (polyimide) substrate. The deep eutectic supramolecular...

  • Editorial
  • Open Access
1 Citations
1,468 Views
4 Pages

It is well-known that various mixtures that require separation have to be dealt with in many branches of industry, especially the chemical and petrochemical industries [...]

  • Review
  • Open Access
55 Citations
9,713 Views
29 Pages

A Review on Membrane Fouling Prediction Using Artificial Neural Networks (ANNs)

  • Waad H. Abuwatfa,
  • Nour AlSawaftah,
  • Naif Darwish,
  • William G. Pitt and
  • Ghaleb A. Husseini

Membrane fouling is a major hurdle to effective pressure-driven membrane processes, such as microfiltration (MF), ultrafiltration (UF), nanofiltration (NF), and reverse osmosis (RO). Fouling refers to the accumulation of particles, organic and inorga...

  • Article
  • Open Access
2 Citations
2,955 Views
11 Pages

Safety and Effectiveness of Carbon Dioxide Removal CO2RESET Device in Critically Ill Patients

  • Fabio Silvio Taccone,
  • Simone Rinaldi,
  • Filippo Annoni,
  • Leda Nobile,
  • Matteo Di Nardo,
  • Jessica Maccieri,
  • Anna Aliberti,
  • Maximilan Valentin Malfertheiner,
  • Andrea Marudi and
  • Lars Mikael Broman
  • + 1 author

Background: In this retrospective study, we report the effectiveness and safety of a dedicated extracorporeal carbon dioxide removal (ECCO2R) device in critically ill patients. Methods: Adult patients on mechanical ventilation due to acute respirator...

  • Article
  • Open Access
3 Citations
2,467 Views
15 Pages

The development of nanocomposite membranes based on hydrocarbon polymers is emerging as one of the most promising strategies for overcoming the performance, cost, and safety limitations of Nafion, which is the current benchmark in proton exchange mem...

  • Article
  • Open Access
16 Citations
3,159 Views
14 Pages

Experimental Evaluation of the Process Performance of MF and UF Membranes for the Removal of Nanoplastics

  • Serena Molina,
  • Helena Ocaña-Biedma,
  • Laura Rodríguez-Sáez and
  • Junkal Landaburu-Aguirre

Despite the high removal ability of the wastewater treatment technologies, research efforts have been limited to the relatively large-sized microplastics, leaving nanoplastics outside the studied size spectrum. This study aims to evaluate the process...

  • Article
  • Open Access
16 Citations
2,579 Views
14 Pages

A new voltammetry method for the highly sensitive antibacterial drug ciprofloxacin (CIP) is presented using glassy carbon electrodes modified with hierarchical electrospun carbon nanofibers with NiCo nanoparticles (eCNF/CNT/NiCo-GCE). The use of a mo...

  • Article
  • Open Access
8 Citations
3,801 Views
23 Pages

Protein Corona of Anionic Fluid-Phase Liposomes Compromises Their Integrity Rather than Uptake by Cells

  • Daria Tretiakova,
  • Maria Kobanenko,
  • Anna Alekseeva,
  • Ivan Boldyrev,
  • Sergey Khaidukov,
  • Viktor Zgoda,
  • Olga Tikhonova,
  • Elena Vodovozova and
  • Natalia Onishchenko

Despite the undisputable role of the protein corona in the biointeractions of liposome drug carriers, the field suffers from a lack of knowledge regarding the patterns of protein deposition on lipid surfaces with different compositions. Here, we inve...

  • Article
  • Open Access
5 Citations
2,863 Views
16 Pages

Electrodeposited Ionomer Protection Layer for Negative Electrodes in Zinc–Air Batteries

  • Papa K. Kwarteng,
  • Suanto Syahputra,
  • Luca Pasquini,
  • Florence Vacandio,
  • Maria Luisa Di Vona and
  • Philippe Knauth

The protection of zinc anodes in zinc–air batteries (ZABs) is an efficient way to reduce corrosion and Zn dendrite formation and improve cyclability and battery efficiency. Anion-conducting poly(N-vinylbenzyl N,N,N-trimethylammonium)chloride (P...

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Membranes - ISSN 2077-0375