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Selective filtration of oil/water mixtures with bioinspired porous membranes

Zeiger, Claudia; Kumberg, Jana; Vüllers, Felix; Worgull, Matthias; Hölscher, Hendrik; Kavalenka, Maryna N.

Abstract (englisch):
Membranes inspired by special wetting properties of aquatic plant leaves enable selective removal of either oil or water from oil/water mixtures by filtration. Here, we introduce polymeric micro- and nanohaircovered porous membranes fabricated using highly scalable fabrication methods: hot pulling and perforation with microneedles. The as-prepared superhydrophobic/superoleophilic oil-removing membranes are converted into underwater superoleophobic water-removing membranes by argon
plasma treatment. Membrane permeability and breakthrough pressures are analyzed and compared to theory, and the efficiency of both types of membranes for oil/water separation is demonstrated.

Zugehörige Institution(en) am KIT Institut für Mikrostrukturtechnik (IMT)
Publikationstyp Zeitschriftenaufsatz
Jahr 2017
Sprache Englisch
Identifikator DOI: 10.1039/C7RA05385A
ISSN: 2046-2069
KITopen ID: 1000071499
HGF-Programm 43.22.01; LK 01
Erschienen in RSC Advances
Band 7
Heft 52
Seiten 32806-32811
Lizenz CC BY-NC 4.0: Creative Commons Namensnennung – Nicht kommerziell 4.0 International
Bemerkung zur Veröffentlichung Gefördert durch den KIT-Publikationsfonds
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