Abstract
A selective nanofiltration membrane was engineered layer-by-layer (LBL) from polydiallyldimethylammonium chloride (PDADMAC) and polysodium-4-styrenesulfoate (PSS) polyelectrolytes. Thickness for 5 bilayers of PDADMAC/PSS was 321.00±11nm and showed 73.87±7% rejection of MgSO4, 22.52±2% rejection of NaCl and satisfactory flux of 12.33L.m−2.h−1 at 5bar. Formation of PDADMAC/PSS multilayers using 1.5M of supporting electrolyte produced nanofiltration membrane with the best NaCl/MgSO4 selectivity of 2.97. In addition, the stability of polyelectrolyte multilayers was evaluated through membrane back-flushing. Modified membrane using polyelectrolyte solutions of moderate ionic strength (by adding 1.5M NaCl) displayed the best performance stability in which the MgSO4 retention capability reduced for only 4%.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
