Abstract
As an ideal membrane for wastewater treatment, desirable separation performance, and fouling resistance are both requisite. Herein we directly in situ attached Ag based nanoparticles on the surface of thin-film composite polyamide (TFC PA) membranes by using benzenediamine (BDA) derivatives with acid functional groups as one aqueous monomer mixed with m-phenylenediamine (MPD) for interfacial polymerization (IP). The acid functional groups in BDA derivatives incorporated in the PA layer facilitated the in situ metallization or mineralization without grafting additional “bridge” linkers. Various characterization techniques were employed to elucidate the modification mechanism. The effects of molecular structures of BDA derivatives on the surface properties, separation performance, and antifouling capacity of resulting membranes were also systematically investigated. Compared with the pristine TFC membrane, the modified membranes exhibited the 85.83% water flux enhancement and 65.25% lower reverse salt flux overcoming the permeability-selectivity trade-off. Moreover, the total Ag loading of modified membranes increases by 8–14 times as compared to that of the pristine one, thereby the enhanced antibacterial and antifouling capacities in wastewater treatment.
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.
