Fabrication of PES nanofiltration membrane by simultaneous use of multi-walled carbon nanotube and surface graft polymerization method: Comparison of MWCNT and PAA modified MWCNT

► A mixed matrix NF membrane was fabricated by MWCNT and PAA modified MWCNT. ► Modified MWCNT showed superior effects on membrane performance improvement. ► PAA grafting on membrane containing modified MWCNTs offered higher grafting yield. ► Grafted mixed matrix membrane had preferable water flux and antifouling properties.