Activated carbon nanofiber nonwoven for removal of emulsified oil from water

Basma I. Waisi; Jason T. Arena; Nieck E. Benes; Arian Nijmeijer; Jeffrey R. McCutcheon

doi:10.1016/j.micromeso.2019.109966

Activated carbon nanofiber nonwoven for removal of emulsified oil from water

Basma I. Waisi, Jason T. Arena, Nieck E. Benes, Arian Nijmeijer, Jeffrey R. McCutcheon^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › Academic › peer-review

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Abstract

Activated carbon nanofiber nonwoven (ACNFN) has the potential for being high capacity and throughput sorbent for a variety of contaminants in water due to high porosity and permeability, respectively. In this work, we explore the removal of emulsified oil from water using ACNFNs in both a batch and flow-through mode. The ACNFNs were prepared by pyrolysis of electrospun polyacrylonitrile and characterized for specific surface area, hydrophobicity, and mechanical strength. The ACNFNs exhibit a removal efficiency of up to 95% in batch mode and outperform our control tests with non-activated carbon nanofiber nonwoven and a commercial granular activated carbon. Adsorption tests in a flow-through mode demonstrated characteristic breakthrough behavior with subsequent clogging. Removal efficiency increased with the thickness of the mat and with prolonged operation due to ripening.

Original language	English
Article number	109966
Journal	Microporous and mesoporous materials
Volume	296
Early online date	19 Dec 2019
DOIs	https://doi.org/10.1016/j.micromeso.2019.109966
Publication status	Published - Apr 2020

Keywords

Activated carbon
And adsorption
Batch
Emulsion
Flow-through
Nonwoven
22/2 OA procedure

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10.1016/j.micromeso.2019.109966

ArticleFinal published version, 2.08 MBLicence: Taverne

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title = "Activated carbon nanofiber nonwoven for removal of emulsified oil from water",

abstract = "Activated carbon nanofiber nonwoven (ACNFN) has the potential for being high capacity and throughput sorbent for a variety of contaminants in water due to high porosity and permeability, respectively. In this work, we explore the removal of emulsified oil from water using ACNFNs in both a batch and flow-through mode. The ACNFNs were prepared by pyrolysis of electrospun polyacrylonitrile and characterized for specific surface area, hydrophobicity, and mechanical strength. The ACNFNs exhibit a removal efficiency of up to 95% in batch mode and outperform our control tests with non-activated carbon nanofiber nonwoven and a commercial granular activated carbon. Adsorption tests in a flow-through mode demonstrated characteristic breakthrough behavior with subsequent clogging. Removal efficiency increased with the thickness of the mat and with prolonged operation due to ripening.",

keywords = "Activated carbon, And adsorption, Batch, Emulsion, Flow-through, Nonwoven, 22/2 OA procedure",

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AU - Waisi, Basma I.

AU - Arena, Jason T.

AU - Benes, Nieck E.

AU - Nijmeijer, Arian

AU - McCutcheon, Jeffrey R.

PY - 2020/4

Y1 - 2020/4

N2 - Activated carbon nanofiber nonwoven (ACNFN) has the potential for being high capacity and throughput sorbent for a variety of contaminants in water due to high porosity and permeability, respectively. In this work, we explore the removal of emulsified oil from water using ACNFNs in both a batch and flow-through mode. The ACNFNs were prepared by pyrolysis of electrospun polyacrylonitrile and characterized for specific surface area, hydrophobicity, and mechanical strength. The ACNFNs exhibit a removal efficiency of up to 95% in batch mode and outperform our control tests with non-activated carbon nanofiber nonwoven and a commercial granular activated carbon. Adsorption tests in a flow-through mode demonstrated characteristic breakthrough behavior with subsequent clogging. Removal efficiency increased with the thickness of the mat and with prolonged operation due to ripening.

AB - Activated carbon nanofiber nonwoven (ACNFN) has the potential for being high capacity and throughput sorbent for a variety of contaminants in water due to high porosity and permeability, respectively. In this work, we explore the removal of emulsified oil from water using ACNFNs in both a batch and flow-through mode. The ACNFNs were prepared by pyrolysis of electrospun polyacrylonitrile and characterized for specific surface area, hydrophobicity, and mechanical strength. The ACNFNs exhibit a removal efficiency of up to 95% in batch mode and outperform our control tests with non-activated carbon nanofiber nonwoven and a commercial granular activated carbon. Adsorption tests in a flow-through mode demonstrated characteristic breakthrough behavior with subsequent clogging. Removal efficiency increased with the thickness of the mat and with prolonged operation due to ripening.

KW - Activated carbon

KW - And adsorption

KW - Batch

KW - Emulsion

KW - Flow-through

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KW - 22/2 OA procedure

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Activated carbon nanofiber nonwoven for removal of emulsified oil from water

Abstract

Keywords

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