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Title: Manta ray gill inspired radially distributed nanofibrous membrane for efficient and continuous oil–water separation
Authors: Li, Zhengtao
Tan, Carl M.
Tio, Wee
Ang, Jeremy
Sun, Darren Delai
Keywords: Engineering::Environmental engineering::Water treatment
Nanofibrous Membranes
Oil–water Separation
Issue Date: 2018
Source: Li, Z., Tan, C. M., Tio, W., Ang, J., & Sun, D. D. (2018). Manta ray gill inspired radially distributed nanofibrous membrane for efficient and continuous oil–water separation. Environmental Science: Nano, 5(6), 1466-1472. doi:10.1039/C8EN00258D
Series/Report no.: Environmental Science: Nano
Abstract: Suspension-feeding animals such as manta rays can separate water and food particles quickly and continuously through their special structured gill rakers via crossflow filtration. Inspired by this ecosystem engineering from nature, a facile membrane based set-up for oil–water separation mimicking the manta ray gill rakers was proposed in this paper. This crossflow process was fabricated using an aligned electrospun nanofibrous silk fibroin membrane. In this process, as the oil–water mixture travels in a parallel manner across the membrane surface, water permeated through the membrane while oil was rejected by the membrane and collected in the middle pipe. Compared to traditional super-hydrophilic membrane separation conducted by a gravity-driven dead-end approach, this method can avoid fouling issues and function continuously. Therefore, this nature-inspired method creates new opportunities for efficient oil–water separation. As an environmentally friendly material, silk fibroin is naturally super-hydrophilic which demonstrated its potential in water treatment.
ISSN: 2051-8153
DOI: 10.1039/C8EN00258D
Rights: © 2018 The Royal Society of Chemistry. All rights reserved. This paper was published in Environmental Science: Nano and is made available with permission of The Royal Society of Chemistry.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:CEE Journal Articles

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