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Rapid Surface Modification of Ultrafiltration Membranes for Enhanced Antifouling Properties

Said, Noresah; Khoo, Ying Siew; Lau, Woei Jye; Gürsoy, Mehmet; Karaman, Mustafa; Ting, Teo Ming; Abouzari-Lotf, Ebrahim 1; Ismail, Ahmad Fauzi
1 Center for Electrochemical Energy Storage Ulm & Karlsruhe (CELEST), Karlsruher Institut für Technologie (KIT)


In this work, several ultrafiltration (UF) membranes with enhanced antifouling properties were fabricated using a rapid and green surface modification method that was based on the plasma-enhanced chemical vapor deposition (PECVD). Two types of hydrophilic monomers-acrylic acid (AA) and 2-hydroxyethyl methacrylate (HEMA) were, respectively, deposited on the surface of a commercial UF membrane and the effects of plasma deposition time (i.e., 15 s, 30 s, 60 s, and 90 s) on the surface properties of the membrane were investigated. The modified membranes were then subjected to filtration using 2000 mg/L pepsin and bovine serum albumin (BSA) solutions as feed. Microscopic and spectroscopic analyses confirmed the successful deposition of AA and HEMA on the membrane surface and the decrease in water contact angle with increasing plasma deposition time strongly indicated the increase in surface hydrophilicity due to the considerable enrichment of the hydrophilic segment of AA and HEMA on the membrane surface. However, a prolonged plasma deposition time (>15 s) should be avoided as it led to the formation of a thicker coating layer that significantly reduced the membrane pure water flux with no significant change in the solute rejection rate. ... mehr

Verlagsausgabe §
DOI: 10.5445/IR/1000128530
Veröffentlicht am 15.01.2021
DOI: 10.3390/membranes10120401
Zitationen: 18
Zitationen: 19
Cover der Publikation
Zugehörige Institution(en) am KIT Helmholtz-Institut Ulm (HIU)
Publikationstyp Zeitschriftenaufsatz
Publikationsdatum 07.12.2020
Sprache Englisch
Identifikator ISSN: 2077-0375
KITopen-ID: 1000128530
HGF-Programm 37.01.01 (POF III, LK 01) Fundamentals and Materials
Erschienen in Membranes
Verlag MDPI
Band 10
Heft 12
Seiten Art.-Nr. 401
Nachgewiesen in Web of Science
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