A self-assembled superhydrophobic electrospun carbon-silica nanofiber sponge for selective removal and recovery of oils and organic solvents

An oil spill needs timely cleanup before it spreads and poses serious environmental threat to the polluted area. This always requires the cleanup techniques to be efficient and cost-effective. In this work, a lightweight and compressible sponge made of carbon–silica nanofibers is derived from electr...

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Main Authors: Tai, Ming Hang, Tan, Benny Yong Liang, Juay, Jermyn, Sun, Darren D., Leckie, James O.
Other Authors: School of Civil and Environmental Engineering
Format: Journal Article
Language:English
Published: 2015
Subjects:
Online Access:https://hdl.handle.net/10356/106590
http://hdl.handle.net/10220/25009
http://dx.doi.org/10.1002/chem.201405670
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author Tai, Ming Hang
Tan, Benny Yong Liang
Juay, Jermyn
Sun, Darren D.
Leckie, James O.
author2 School of Civil and Environmental Engineering
author_facet School of Civil and Environmental Engineering
Tai, Ming Hang
Tan, Benny Yong Liang
Juay, Jermyn
Sun, Darren D.
Leckie, James O.
author_sort Tai, Ming Hang
collection NTU
description An oil spill needs timely cleanup before it spreads and poses serious environmental threat to the polluted area. This always requires the cleanup techniques to be efficient and cost-effective. In this work, a lightweight and compressible sponge made of carbon–silica nanofibers is derived from electrospinning nanotechnology that is low-cost, versatile, and readily scalable. The fabricated sponge has high porosity (>99 %) and displays ultra-hydrophobicity and superoleophilicity, thus making it a suitable material as an oil adsorbent. Owing to its high porosity and low density, the sponge is capable of adsorbing oil up to 140 times its own weight with its sorption rate showing solution viscosity dependence. Furthermore, sponge regeneration and oil recovery are feasible by using either cyclic distillation or mechanical squeezing.
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spelling ntu-10356/1065902019-12-06T22:14:39Z A self-assembled superhydrophobic electrospun carbon-silica nanofiber sponge for selective removal and recovery of oils and organic solvents Tai, Ming Hang Tan, Benny Yong Liang Juay, Jermyn Sun, Darren D. Leckie, James O. School of Civil and Environmental Engineering DRNTU::Science::Chemistry::Crystallography::Liquid crystals An oil spill needs timely cleanup before it spreads and poses serious environmental threat to the polluted area. This always requires the cleanup techniques to be efficient and cost-effective. In this work, a lightweight and compressible sponge made of carbon–silica nanofibers is derived from electrospinning nanotechnology that is low-cost, versatile, and readily scalable. The fabricated sponge has high porosity (>99 %) and displays ultra-hydrophobicity and superoleophilicity, thus making it a suitable material as an oil adsorbent. Owing to its high porosity and low density, the sponge is capable of adsorbing oil up to 140 times its own weight with its sorption rate showing solution viscosity dependence. Furthermore, sponge regeneration and oil recovery are feasible by using either cyclic distillation or mechanical squeezing. 2015-02-02T08:24:29Z 2019-12-06T22:14:39Z 2015-02-02T08:24:29Z 2019-12-06T22:14:39Z 2015 2015 Journal Article Tai, M. H., Tan, B. Y. L., Juay, J., Sun, D. D., & Leckie, J. O. (2015). A self-assembled superhydrophobic electrospun carbon-silica nanofiber sponge for selective removal and recovery of oils and organic solvents. Chemistry - A European journal, 21(14), 5395-5402. 0947-6539 https://hdl.handle.net/10356/106590 http://hdl.handle.net/10220/25009 http://dx.doi.org/10.1002/chem.201405670 en Chemistry - A European journal © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
spellingShingle DRNTU::Science::Chemistry::Crystallography::Liquid crystals
Tai, Ming Hang
Tan, Benny Yong Liang
Juay, Jermyn
Sun, Darren D.
Leckie, James O.
A self-assembled superhydrophobic electrospun carbon-silica nanofiber sponge for selective removal and recovery of oils and organic solvents
title A self-assembled superhydrophobic electrospun carbon-silica nanofiber sponge for selective removal and recovery of oils and organic solvents
title_full A self-assembled superhydrophobic electrospun carbon-silica nanofiber sponge for selective removal and recovery of oils and organic solvents
title_fullStr A self-assembled superhydrophobic electrospun carbon-silica nanofiber sponge for selective removal and recovery of oils and organic solvents
title_full_unstemmed A self-assembled superhydrophobic electrospun carbon-silica nanofiber sponge for selective removal and recovery of oils and organic solvents
title_short A self-assembled superhydrophobic electrospun carbon-silica nanofiber sponge for selective removal and recovery of oils and organic solvents
title_sort self assembled superhydrophobic electrospun carbon silica nanofiber sponge for selective removal and recovery of oils and organic solvents
topic DRNTU::Science::Chemistry::Crystallography::Liquid crystals
url https://hdl.handle.net/10356/106590
http://hdl.handle.net/10220/25009
http://dx.doi.org/10.1002/chem.201405670
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