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 …

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 …

Unlocking the potential of thin-film composite reverse osmosis membrane performance: Insights from mass transfer modeling

K Yuan, Y Liu, H Feng, Y Liu, J Cheng, B Luo… - Chinese Chemical …, 2024 - Elsevier
Thin-film composite (TFC) reverse osmosis (RO) membranes have attracted considerable
attention in water treatment and desalination processes due to their specific separation …

Optimized water supply in a solar evaporator for simultaneous freshwater production and salt recycle

Z Yang, D Li, K Yang, L Chen, J Wang… - Environmental …, 2023 - ACS Publications
Solar desalination has shown great potential in alleviating global water scarcity. However,
the trade-off between energy efficiency and salt rejection remains a challenge, restricting its …

Selective ion transport through hydrated micropores in polymer membranes

A Wang, C Breakwell, F Foglia, R Tan, L Lovell, X Wei… - Nature, 2024 - nature.com
Ion-conducting polymer membranes are essential in many separation processes and
electrochemical devices, including electrodialysis, redox flow batteries, fuel cells and …

Molecular simulations of organic solvent transport in dense polymer membranes: Solution-diffusion or pore-flow mechanism?

J He, H Fan, M Elimelech, Y Li - Journal of Membrane Science, 2024 - Elsevier
We employed non-equilibrium molecular dynamics simulations and theoretical predictions
to elucidate organic solvent and water transport mechanisms in dense polymer membranes …

Polyamide thin film nanocomposite membranes with in-situ integration of multiple functional nanoparticles for high performance reverse osmosis

HQ Huo, YF Mi, X Yang, HH Lu, YL Ji, Y Zhou… - Journal of Membrane …, 2023 - Elsevier
Polyamide (PA) thin film nanocomposite (TFN) reverse osmosis (RO) membranes have
been vigorously developed, which could be used in saline water desalination, wastewater …

Molecular mechanisms of thickness-dependent water desalination in polyamide reverse-osmosis membranes

J He, T Arbaugh, D Nguyen, W **an, EMV Hoek… - Journal of Membrane …, 2023 - Elsevier
Using non-equilibrium molecular simulations, we systematically elaborate the relationships
among synthesis (membrane's thickness and morphology), atomic-scale transport …

Reverse osmosis membrane containing hydrazine as architecture unit

Q Wang, H Ma, M Khan, BS Hsiao - Journal of Membrane Science, 2024 - Elsevier
Novel reverse osmosis (RO) membranes with a hydrazine-based polyamide barrier layer
were fabricated by interfacial polymerization (IP) on an electrospun PAN substrate. The …

Polyamide thin-film composite Janus membranes avoiding direct contact between feed liquid and hydrophobic pores for excellent wetting resistance in membrane …

T Gong, D Shi, Z Zhu, B Liu, S Shao - ACS ES&T Water, 2022 - ACS Publications
Hydrophobic membranes are very susceptible to pore wetting when they contact the feed
water containing surfactants or low-surface-tension liquids in membrane distillation (MD) …