Nanofiltration Membranes with Salt-Responsive Ion Valves for Enhanced Separation Performance in Brackish Water Treatment: A Battle against the Limitation of Salt Concentration
Nanofiltration
DOI:
10.1021/acs.est.3c03919
Publication Date:
2023-09-15T11:09:19Z
AUTHORS (6)
ABSTRACT
Utilizing brackish water resources has imposed a high requirement on the design and construction of nanofiltration membranes. To overcome limitation salt concentration separation performance resulting from weakened Donnan effect, membrane with effect salt-responsive ion valves was developed by incorporating zwitterionic nanospheres into polyamide layer (PA-ZNs). The interaction between membranes at salinity revealed through combination analysis perspectives transport model, positron annihilation spectroscopy, solute rejection, contributing to formation valve effect. PA-ZNs presented breakthrough in overcoming increased concentrations performance, achieving selectivity 105 for mono/multivalent anions. reveal role membrane, conductance determined different concentrations, confirming channel-controlled low valve-controlled salinity. Moreover, main mechanisms were systematically studied. concept may contribute expanding application treatment.
SUPPLEMENTAL MATERIAL
Coming soon ....
REFERENCES (74)
CITATIONS (28)
EXTERNAL LINKS
PlumX Metrics
RECOMMENDATIONS
FAIR ASSESSMENT
Coming soon ....
JUPYTER LAB
Coming soon ....