Abstract
Polytetrafluoroethylene (PTFE) hollow fibers are considered as robust membranes for wastewater treatment due to its comprehensive chemical, thermal and mechanical stability. However, the intrinsic strong hydrophobicity impeded its application because of severe organic matter fouling. Therefore, hydrophilic PTFE hollow fiber membrane especially with robust resistance to chemical washing is highly desirable. Herein, we feasibly enhance the chemical washing resistance of hydrophilic PTFE hollow fiber membrane via the interface impregnation and crosslinking of poly (vinylpyrrolidone-vinyltriethoxysilane) (P (VP-VTES)). The hydrophilic crosslinking network (HCN) endowed PTFE membrane with better resistance to BSA, HA and soybean oil fouling compared to ethanol pre-wetted PTFE membrane. More importantly, the HCN modified membrane maintains its hydrophilic and chemical stability after strong acidic (pH = 2), alkaline (pH = 12) and oxidization artificial accelerated cleaning (2000 ppm NaClO) for 2 weeks. Overall, the facile preparation and excellent performance of robust hydrophilic PTFE membrane highlights its great potential in treating highly contaminated wastewater.
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.
