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Issue 52, 2017, Issue in Progress
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Selective filtration of oil/water mixtures with bioinspired porous membranes

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Abstract

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 nanohair-covered 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.

Graphical abstract: Selective filtration of oil/water mixtures with bioinspired porous membranes

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Publication details

The article was received on 12 May 2017, accepted on 21 Jun 2017 and first published on 27 Jun 2017


Article type: Paper
DOI: 10.1039/C7RA05385A
Citation: RSC Adv., 2017,7, 32806-32811
  • Open access: Creative Commons BY-NC license
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    Selective filtration of oil/water mixtures with bioinspired porous membranes

    C. Zeiger, J. Kumberg, F. Vüllers, M. Worgull, H. Hölscher and M. N. Kavalenka, RSC Adv., 2017, 7, 32806
    DOI: 10.1039/C7RA05385A

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