Abstract
Poly(vinylidene fluoride) (PVDF) dual layer hollow fiber membrane was modified by coating dopamine and grafting polyethyleneimine, then the hydrophilic and antibacterial PVDF membrane was obtained through quaternization reactions. The attenuated total reflectant Fourier transform infrared spectra (ATR-FTIR) and X-ray photoelectron spectroscopy (XPS) were applied to confirm the successful modification. The water contact angle measurement suggested that the membrane hydrophilicity was significantly improved. Morphological changes of membranes were characterized by field emission scanning electron microscope (FE-SEM). The pure water flux before and after BSA contamination was measured and the flux recovery rate for the modified membrane was as high as 94%. The antibacterial tests showed that the hydrophilic and antibacterial PVDF membrane owned excellent anti-bacterial efficiency and resistance to bacterial adhesion. The average pore size, mechanical property and zeta potential were also investigated. All the results demonstrated this facile method can enhance the hydrophilicity and antibacterial ability of PVDF dual layer hollow fiber membrane, and would have application in water treatment.
Sign-in/Register to access full text options 
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.
