Water transport in reverse osmosis membranes is governed by pore flow, not a solution-diffusion mechanism

L Wang, J He, M Heiranian, H Fan, L Song, Y Li… - Science …, 2023 - science.org
We performed nonequilibrium molecular dynamics (NEMD) simulations and solvent
permeation experiments to unravel the mechanism of water transport in reverse osmosis …

Molecular dynamics simulation of polyamide-based materials–A review

S Krishna, I Sreedhar, CM Patel - Computational Materials Science, 2021 - Elsevier
A thorough report is provided in this review on Molecular Dynamics (MD) simulations of
polyamide-based materials. MD simulations have been carried out using polyamides …

Unlocking the potential of polymeric desalination membranes by understanding molecular-level interactions and transport mechanisms

TR Nickerson, EN Antonio, DP McNally, MF Toney… - Chemical …, 2023 - pubs.rsc.org
Polyamide reverse osmosis (PA-RO) membranes achieve remarkably high water
permeability and salt rejection, making them a key technology for addressing water …

Molecular simulations to elucidate transport phenomena in polymeric membranes

M Heiranian, RM DuChanois, CL Ritt… - Environmental …, 2022 - ACS Publications
Despite decades of dominance in separation technology, progress in the design and
development of high-performance polymer-based membranes has been incremental …

Fouling and Retention Mechanisms of Selected Cationic and Anionic Dyes in a Ti3C2Tx MXene-Ultrafiltration Hybrid System

S Kim, M Yu, Y Yoon - ACS applied materials & interfaces, 2020 - ACS Publications
Ti3C2T x MXenes, a very new family of nanostructured material, were applied in
combination with an ultrafiltration (UF) membrane (MXene-UF) for removal of the selected …

Multimodal confined water dynamics in reverse osmosis polyamide membranes

F Foglia, B Frick, M Nania, AG Livingston… - Nature …, 2022 - nature.com
While polyamide (PA) membranes are widespread in water purification and desalination by
reverse osmosis, a molecular-level understanding of the dynamics of both confined water …

Pressure-driven Li+/Mg2+ selective permeation through size-sieving nanochannels: the role of the second hydration shell

N Zhang, H Yu, J Zhang, X Jiang, S Yin, G Zhou… - Separation and …, 2023 - Elsevier
Non-equilibrium molecular dynamics simulations were carried out to investigate the size-
sieving mechanism of the permselective transport of Li+ and Mg 2+ through one …

Chemically functionalized polyamide thin film composite membranes: The art of chemistry

PS Goh, AF Ismail - Desalination, 2020 - Elsevier
Polyamide thin film composite membranes have been conventionally used for reverse
osmosis (RO) and forward osmosis (FO) processes. Despite their high efficiency and …

Hydrogen bonding interactions of H2O and SiOH on a boroaluminosilicate glass corroded in aqueous solution

D Ngo, H Liu, Z Chen, H Kaya, TJ Zimudzi… - npj Materials …, 2020 - nature.com
Hydrogen bonding interactions play an important role in many chemical and physical
processes occurring in bulk liquids and at interfaces. In this study, hydrous species (H2O …

Poly (ether-block amide) thin-film membranes containing functionalized MIL-101 MOFs for efficient separation of CO2/CH4

SK Salestan, K Pirzadeh, A Rahimpour… - Journal of Environmental …, 2021 - Elsevier
In this study, a post-synthesis modification method was used to graft tetraethylenepentamine
(TEPA) on MIL-101 (Cr) metal organic framework (MOF). The post-modified amine grafted …