Catalyst-anchored secondary polymerization for highly permeable acid-resistant nanofiltration membrane preparation DOI
Yang Cao, Yinhua Wan,

Chulong Chen

et al.

Journal of Membrane Science, Journal Year: 2023, Volume and Issue: 686, P. 121991 - 121991

Published: Aug. 10, 2023

Language: Английский

The role of ion‐membrane interactions in fast and selective mono/multivalent ion separation with hierarchical nanochannels DOI
Jiayu Zhang, Yuqing Lin,

Yiren Zhang

et al.

AIChE Journal, Journal Year: 2023, Volume and Issue: 69(12)

Published: Aug. 30, 2023

Abstract Precise control over the nanofluid behavior of polyelectrolyte‐based membranes is a primary step toward understanding structure‐morphology‐property relationships to ultimately determine mass transfer characteristics. In this study, high‐performance multistacked cation exchange membrane (CEM) with heterogeneous structure and versatile surface chemistry was developed achieve selective ion conductance. The self‐assembled CEM can facilitate permeation fluxes 2.9 mol m −2 h −1 for K + 0.22 Mg 2+ , reaching mono/multivalent ionic selectivity up 13, outperforming mono/divalent fractionation when compared state‐of‐the‐art membranes. Molecular dynamic (MD) simulations illustrated transport trajectory in hierarchical channels angstrom‐scale cavities using multilayered CEMs. Both experimental measurements theoretical indicated that associated large disparity energy barrier between cations, which origin differences dehydration‐rehydration processes angstrom‐confinement channels.

Language: Английский

Citations

16
Ionic liquid‐induced deep grafting of polyelectrolyte to reform polyamide layer for antifouling nanofiltration membrane DOI
Lulu Liu, Yuxuan Liu, Yinhua Wan

et al.

AIChE Journal, Journal Year: 2023, Volume and Issue: 69(11)

Published: Aug. 10, 2023

Abstract Surface grafting has been widely used to tune hydrophilicity and chargeability of nanofiltration membranes for reducing membrane fouling potential. However, surface typically leads a significant pore narrowing resultant permeability loss, monocharged still struggles resist mixed foulants with different charges. Herein, ionic liquid (IL)‐ethanol (EtOH) solution containing polyethyleneimine (PEI) is rearrange the nascent polyamide layer. The high affinity IL PA layer low diffusion steric hindrance EtOH contribute swelling PEI deep grafting, during which “self‐regulation” effect (larger pores would be filled more molecules) narrows size distribution enhances hydrophilicity. nearly charge‐neutral smooth separation shows impressive antifouling capacity hydrophobic macromolecules charged molecules, along long‐term operating stability real wastewater treatment. This study emphasizes importance solvent properties on behavior.

Language: Английский

Citations

15
A novel interfacial polymerization assisted phase inversion process for the facile fabrication of ion-selective nanofiltration membranes DOI
Shijie Hu, Tao Liu, Zongyao Zhou

et al.

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 477, P. 147212 - 147212

Published: Nov. 7, 2023

Language: Английский

Citations

14
Tailoring the microstructure of zwitterionic nanofiltration membranes via post-treatment for antibiotic desalination DOI
Na Tian, Bin Wu, Wenhai Zhang

et al.

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 349, P. 127884 - 127884

Published: May 8, 2024

Language: Английский

Citations

6
Catalyst-anchored secondary polymerization for highly permeable acid-resistant nanofiltration membrane preparation DOI
Yang Cao, Yinhua Wan,

Chulong Chen

et al.

Journal of Membrane Science, Journal Year: 2023, Volume and Issue: 686, P. 121991 - 121991

Published: Aug. 10, 2023

Language: Английский

Citations

13