Activated Carbon Derived from Carbonization of Kevlar Waste Materials: A Novel Single Stage Method

The augmented demands of textile materials over time have brought challenges in the disposal of substantial volumes of waste generated during the processing and end of life of such materials. Taking into consideration environmental safety due to discarding of textile waste, it becomes critical to re...

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Autores principales: Daniel Karthik, Vijay Baheti, Jiri Militky, Muhammad Salman Naeem, Veronika Tunakova, Azam Ali
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Publicado: MDPI AG 2021
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spelling oai:doaj.org-article:225bc1103d1c465cb396eaf294c6471f2021-11-11T18:00:35ZActivated Carbon Derived from Carbonization of Kevlar Waste Materials: A Novel Single Stage Method10.3390/ma142164331996-1944https://doaj.org/article/225bc1103d1c465cb396eaf294c6471f2021-10-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/21/6433https://doaj.org/toc/1996-1944The augmented demands of textile materials over time have brought challenges in the disposal of substantial volumes of waste generated during the processing and end of life of such materials. Taking into consideration environmental safety due to discarding of textile waste, it becomes critical to recuperate useful products from such waste for economic reasons. The present work deals with the preparation of porous and electrically conductive activated carbon fabric by a novel single stage method of simultaneous carbonization and physical activation of Kevlar feedstock material procured from local industries, for effective electromagnetic (EM) shielding applications. The Kevlar fabric waste was directly carbonized under a layer of charcoal without any intermediate stabilization step at 800 °C, 1000 °C, and 1200 °C, with a heating rate of 300 °C/h and without any holding time. The physical and morphological properties of the activated carbon, influenced by carbonization process parameters, were characterized from EDX, X-ray diffraction, SEM analysis, and BET analysis. Furthermore, the electrical conductivity was analyzed. Finally, the potential application of the activated material for EM shielding effectiveness was analyzed at low (below 1.5 GHz) and high (2.45 GHz) frequencies. The phenomena of multiple internal reflections and absorption of electromagnetic radiations was found dominant in the case of activated carbon fabric produced at higher carbonization temperatures.Daniel KarthikVijay BahetiJiri MilitkyMuhammad Salman NaeemVeronika TunakovaAzam AliMDPI AGarticleactivated carboncarbonizationporous surfacecost effectiveKevlartextile wasteTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 6433, p 6433 (2021)
institution DOAJ
collection DOAJ
language EN
topic activated carbon
carbonization
porous surface
cost effective
Kevlar
textile waste
Technology
T
Electrical engineering. Electronics. Nuclear engineering
TK1-9971
Engineering (General). Civil engineering (General)
TA1-2040
Microscopy
QH201-278.5
Descriptive and experimental mechanics
QC120-168.85
spellingShingle activated carbon
carbonization
porous surface
cost effective
Kevlar
textile waste
Technology
T
Electrical engineering. Electronics. Nuclear engineering
TK1-9971
Engineering (General). Civil engineering (General)
TA1-2040
Microscopy
QH201-278.5
Descriptive and experimental mechanics
QC120-168.85
Daniel Karthik
Vijay Baheti
Jiri Militky
Muhammad Salman Naeem
Veronika Tunakova
Azam Ali
Activated Carbon Derived from Carbonization of Kevlar Waste Materials: A Novel Single Stage Method
description The augmented demands of textile materials over time have brought challenges in the disposal of substantial volumes of waste generated during the processing and end of life of such materials. Taking into consideration environmental safety due to discarding of textile waste, it becomes critical to recuperate useful products from such waste for economic reasons. The present work deals with the preparation of porous and electrically conductive activated carbon fabric by a novel single stage method of simultaneous carbonization and physical activation of Kevlar feedstock material procured from local industries, for effective electromagnetic (EM) shielding applications. The Kevlar fabric waste was directly carbonized under a layer of charcoal without any intermediate stabilization step at 800 °C, 1000 °C, and 1200 °C, with a heating rate of 300 °C/h and without any holding time. The physical and morphological properties of the activated carbon, influenced by carbonization process parameters, were characterized from EDX, X-ray diffraction, SEM analysis, and BET analysis. Furthermore, the electrical conductivity was analyzed. Finally, the potential application of the activated material for EM shielding effectiveness was analyzed at low (below 1.5 GHz) and high (2.45 GHz) frequencies. The phenomena of multiple internal reflections and absorption of electromagnetic radiations was found dominant in the case of activated carbon fabric produced at higher carbonization temperatures.
format article
author Daniel Karthik
Vijay Baheti
Jiri Militky
Muhammad Salman Naeem
Veronika Tunakova
Azam Ali
author_facet Daniel Karthik
Vijay Baheti
Jiri Militky
Muhammad Salman Naeem
Veronika Tunakova
Azam Ali
author_sort Daniel Karthik
title Activated Carbon Derived from Carbonization of Kevlar Waste Materials: A Novel Single Stage Method
title_short Activated Carbon Derived from Carbonization of Kevlar Waste Materials: A Novel Single Stage Method
title_full Activated Carbon Derived from Carbonization of Kevlar Waste Materials: A Novel Single Stage Method
title_fullStr Activated Carbon Derived from Carbonization of Kevlar Waste Materials: A Novel Single Stage Method
title_full_unstemmed Activated Carbon Derived from Carbonization of Kevlar Waste Materials: A Novel Single Stage Method
title_sort activated carbon derived from carbonization of kevlar waste materials: a novel single stage method
publisher MDPI AG
publishDate 2021
url https://doaj.org/article/225bc1103d1c465cb396eaf294c6471f
work_keys_str_mv AT danielkarthik activatedcarbonderivedfromcarbonizationofkevlarwastematerialsanovelsinglestagemethod
AT vijaybaheti activatedcarbonderivedfromcarbonizationofkevlarwastematerialsanovelsinglestagemethod
AT jirimilitky activatedcarbonderivedfromcarbonizationofkevlarwastematerialsanovelsinglestagemethod
AT muhammadsalmannaeem activatedcarbonderivedfromcarbonizationofkevlarwastematerialsanovelsinglestagemethod
AT veronikatunakova activatedcarbonderivedfromcarbonizationofkevlarwastematerialsanovelsinglestagemethod
AT azamali activatedcarbonderivedfromcarbonizationofkevlarwastematerialsanovelsinglestagemethod
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