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Membranes, Volume 8, Issue 2

June 2018 - 18 articles

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Cover Story: Petroleum-derived solvents have traditionally been used to fabricate polymeric membranes, however, these potentially have negative impacts on the environment and human health. This study focused on replacing petroleum-derived solvents with a bio-derived solvent, Rhodiasolv® PolarClean, to fabricate polysulfone membranes in order to make the process more environmentally friendly. Polysulfone/PolarClean membranes were cast and characterized, and were compared to membranes prepared using petroleum-derived solvents. Results show that PolarClean offers the potential to fabricate polysulfone membranes successfully. View this paper

Articles (18)

  • Feature Paper
  • Article
  • Open Access
16 Citations
6,794 Views
16 Pages

Both cation-exchange membranes and anion-exchange membranes are used as ion conducting membranes in vanadium redox flow batteries (VRFBs). Anion-exchange membranes (AEMs) are applied in vanadium redox flow batteries due to the high blocking property...

  • Article
  • Open Access
23 Citations
8,217 Views
41 Pages

Membrane reactors for hydrogen production have been extensively studied in the past years due to the interest in developing systems that are adequate for the decentralized production of high-purity hydrogen. Research in this field has been both exper...

  • Feature Paper
  • Article
  • Open Access
16 Citations
4,542 Views
15 Pages

In the present work, the effect of zeolite type and topology on CO2 and N2 permeability using zeolites of different topology (CHA, RHO, and LTA) in the same Si/Al = 5, embedded in poly(trimethylsilyl-1-propyne) (PTMSP) is evaluated with temperature....

  • Feature Paper
  • Article
  • Open Access
65 Citations
9,039 Views
15 Pages

Membrane Distillation Trial on Textile Wastewater Containing Surfactants Using Hydrophobic and Hydrophilic-Coated Polytetrafluoroethylene (PTFE) Membranes

  • Jesús Villalobos García,
  • Noel Dow,
  • Nicholas Milne,
  • Jianhua Zhang,
  • Leslie Naidoo,
  • Stephen Gray and
  • Mikel Duke

Treating wastewater from textile plants using membrane distillation (MD) has great potential due to the high-salinity wastes and availability of waste heat. However, textile wastewaters also contain surfactants, which compromise the essential hydroph...

  • Review
  • Open Access
72 Citations
8,270 Views
23 Pages

Membranes, as perm-selective barriers, have been widely applied for gas separation applications. Since some time ago, pure polymers have been used mainly for the preparation of membranes, considering different kinds of polymers for such preparation....

  • Article
  • Open Access
19 Citations
4,810 Views
17 Pages

CO2 Separation in Nanocomposite Membranes by the Addition of Amidine and Lactamide Functionalized POSS® Nanoparticles into a PVA Layer

  • Gabriel Guerrero,
  • May-Britt Hägg,
  • Christian Simon,
  • Thijs Peters,
  • Nicolas Rival and
  • Christelle Denonville

In this article, we studied two different types of polyhedral oligomeric silsesquioxanes (POSS®) functionalized nanoparticles as additives for nanocomposite membranes for CO2 separation. One with amidine functionalization (Amidino POSS®) and...

  • Article
  • Open Access
8 Citations
5,713 Views
16 Pages

“Modified” Liquid–Liquid Displacement Porometry and Its Applications in Pd-Based Composite Membranes

  • Lei Zheng,
  • Hui Li,
  • Haijun Yu,
  • Guodong Kang,
  • Tianying Xu,
  • Jiafeng Yu,
  • Xinzhong Li and
  • Hengyong Xu

For H2 separation by Pd-based composite membranes, the pore mouth size distribution of the porous support immediately affects the quality of the deposited layer, including continuity and defect/pinhole formation. However, there is a lack of convenien...

  • Article
  • Open Access
18 Citations
7,925 Views
12 Pages

The PolyActive™ thin film composite membrane (TFCM) has already been successfully applied for CO2 separation tasks at feed pressures up to 10 bar. To investigate the applicability at higher pressures, measurements were undertaken with C2H4 cont...

  • Feature Paper
  • Article
  • Open Access
7 Citations
5,701 Views
12 Pages

TEM Tomography of Pores with Application to Computational Nanoscale Flows in Nanoporous Silicon Nitride (NPN)

  • Gregory Madejski,
  • Kilean Lucas,
  • Flavius C. Pascut,
  • Kevin F. Webb and
  • James L. McGrath

Silicon nanomembrane technologies (NPN, pnc-Si, and others) have been used commercially as electron microscopy (EM) substrates, and as filters with nanometer-resolution size cut-offs. Combined with EM, these materials provide a platform for catching...

  • Communication
  • Open Access
4 Citations
4,561 Views
10 Pages

This communication describes the application of forward osmosis (FO) to concentrate stick water, a nutrient-rich water byproduct of meat rendering operations. The objectives of the study were to carry out a set of batch FO runs in concentration mode...

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Membranes - ISSN 2077-0375Creative Common CC BY license