Hierarchically porous silk/activated-carbon composite fibres for adsorption and repellence of volatile organic compounds

Aled Roberts; Jet-Sing M. Lee; Adrian Magaz; Martin W. Smith; Michael  Dennis; Nigel Scrutton; Jonny Blaker

doi:10.3390/molecules25051207

Hierarchically porous silk/activated-carbon composite fibres for adsorption and repellence of volatile organic compounds

Aled Roberts, Jet-Sing M. Lee, Adrian Magaz, Martin W. Smith, Michael Dennis, Nigel Scrutton, Jonny Blaker

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

Abstract

Fabrics comprised of porous fibres could provide effective passive protection against chemical and biological (CB) threats whilst maintaining high air permeability (breathability). Here, we fabricate hierarchically porous fibres consisting of regenerated silk fibroin (RSF) and activated-carbon (AC) prepared through two fibre spinning techniques in combination with ice-templating-namely cryogenic solution blow spinning (Cryo-SBS) and cryogenic wet-spinning (Cryo-WS). The Cryo-WS RSF fibres had exceptionally small macropores (as low as 0.1 μm) and high specific surface areas (SSAs) of up to 79 m ² g ^-1. The incorporation of AC could further increase the SSA to 210 m ² g ^-1 (25 wt.% loading) whilst also increasing adsorption capacity for volatile organic compounds (VOCs).

Original language	English
Article number	1207
Pages (from-to)	1-7
Number of pages	7
Journal	Molecules
Volume	25
Issue number	5
DOIs	https://doi.org/10.3390/molecules25051207
Publication status	Published - 7 Mar 2020

Keywords

activated carbon
freeze casting
ice segregation induced self-assembly
ice-templating
porous fibres
silk fibroin
solution blow spinning
wet spinning

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10.3390/molecules25051207

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title = "Hierarchically porous silk/activated-carbon composite fibres for adsorption and repellence of volatile organic compounds",

abstract = "Fabrics comprised of porous fibres could provide effective passive protection against chemical and biological (CB) threats whilst maintaining high air permeability (breathability). Here, we fabricate hierarchically porous fibres consisting of regenerated silk fibroin (RSF) and activated-carbon (AC) prepared through two fibre spinning techniques in combination with ice-templating-namely cryogenic solution blow spinning (Cryo-SBS) and cryogenic wet-spinning (Cryo-WS). The Cryo-WS RSF fibres had exceptionally small macropores (as low as 0.1 μm) and high specific surface areas (SSAs) of up to 79 m 2 g -1. The incorporation of AC could further increase the SSA to 210 m 2 g -1 (25 wt.% loading) whilst also increasing adsorption capacity for volatile organic compounds (VOCs).",

keywords = "activated carbon, freeze casting, ice segregation induced self-assembly, ice-templating, porous fibres, silk fibroin, solution blow spinning, wet spinning",

author = "Aled Roberts and Lee, {Jet-Sing M.} and Adrian Magaz and Smith, {Martin W.} and Michael Dennis and Nigel Scrutton and Jonny Blaker",

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doi = "10.3390/molecules25051207",

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AU - Roberts, Aled

AU - Lee, Jet-Sing M.

AU - Magaz, Adrian

AU - Smith, Martin W.

AU - Dennis, Michael

AU - Scrutton, Nigel

AU - Blaker, Jonny

PY - 2020/3/7

Y1 - 2020/3/7

N2 - Fabrics comprised of porous fibres could provide effective passive protection against chemical and biological (CB) threats whilst maintaining high air permeability (breathability). Here, we fabricate hierarchically porous fibres consisting of regenerated silk fibroin (RSF) and activated-carbon (AC) prepared through two fibre spinning techniques in combination with ice-templating-namely cryogenic solution blow spinning (Cryo-SBS) and cryogenic wet-spinning (Cryo-WS). The Cryo-WS RSF fibres had exceptionally small macropores (as low as 0.1 μm) and high specific surface areas (SSAs) of up to 79 m 2 g -1. The incorporation of AC could further increase the SSA to 210 m 2 g -1 (25 wt.% loading) whilst also increasing adsorption capacity for volatile organic compounds (VOCs).

AB - Fabrics comprised of porous fibres could provide effective passive protection against chemical and biological (CB) threats whilst maintaining high air permeability (breathability). Here, we fabricate hierarchically porous fibres consisting of regenerated silk fibroin (RSF) and activated-carbon (AC) prepared through two fibre spinning techniques in combination with ice-templating-namely cryogenic solution blow spinning (Cryo-SBS) and cryogenic wet-spinning (Cryo-WS). The Cryo-WS RSF fibres had exceptionally small macropores (as low as 0.1 μm) and high specific surface areas (SSAs) of up to 79 m 2 g -1. The incorporation of AC could further increase the SSA to 210 m 2 g -1 (25 wt.% loading) whilst also increasing adsorption capacity for volatile organic compounds (VOCs).

KW - activated carbon

KW - freeze casting

KW - ice segregation induced self-assembly

KW - ice-templating

KW - porous fibres

KW - silk fibroin

KW - solution blow spinning

KW - wet spinning

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SP - 1

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JO - Molecules

JF - Molecules

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M1 - 1207

ER -

Hierarchically porous silk/activated-carbon composite fibres for adsorption and repellence of volatile organic compounds

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Manchester Synthetic Biology Research Centre for Fine and Speciality Chemicals

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Hierarchically porous silk/activated-carbon composite fibres for adsorption and repellence of volatile organic compounds

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Keywords

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Manchester Synthetic Biology Research Centre for Fine and Speciality Chemicals

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