Architecting functionalized carbon microtube/carrollite nanocomposite demonstrating significant microwave characteristics

Abstract Biomass-derived materials have recently received considerable attention as lightweight, low-cost, and green microwave absorbers. On the other hand, sulfide nanostructures due to their narrow band gaps have demonstrated significant microwave characteristics. In this research, carbon microtub...

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Autores principales:	Reza Peymanfar, Elnaz Selseleh-Zakerin, Ali Ahmadi, Seyed Hassan Tavassoli
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/38c5cd606f064a48acdd2f814a240db1
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spelling	oai:doaj.org-article:38c5cd606f064a48acdd2f814a240db12021-12-02T17:30:53ZArchitecting functionalized carbon microtube/carrollite nanocomposite demonstrating significant microwave characteristics10.1038/s41598-021-91370-52045-2322https://doaj.org/article/38c5cd606f064a48acdd2f814a240db12021-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-91370-5https://doaj.org/toc/2045-2322Abstract Biomass-derived materials have recently received considerable attention as lightweight, low-cost, and green microwave absorbers. On the other hand, sulfide nanostructures due to their narrow band gaps have demonstrated significant microwave characteristics. In this research, carbon microtubes were fabricated using a biowaste and then functionalized by a novel complementary solvothermal and sonochemistry method. The functionalized carbon microtubes (FCMT) were ornamented by CuCo2S4 nanoparticles as a novel spinel sulfide microwave absorber. The prepared structures illustrated narrow energy band gap and deposition of the sulfide structures augmented the polarizability, desirable for dielectric loss and microwave attenuation. Eventually, the architected structures were blended by polyacrylonitrile (PAN) to estimate their microwave absorbing and antibacterial characteristics. The antibacterial properties against Gram-negative Escherichia coli (E. coli) and Gram-positive Staphylococcus aureus (S. aureus) were scrupulously assessed. Noteworthy, the maximum reflection loss (RL) of the CuCo2S4/PAN with a thickness of 1.75 mm was 61.88 dB at 11.60 GHz, while the architected FCMT/PAN composite gained a broadband efficient bandwidth as wide as 7.91 GHz (RL > 10 dB) and 3.25 GHz (RL > 20 dB) with a thickness of 2.00 mm. More significantly, FCMT/CuCo2S4/PAN demonstrated an efficient bandwidth of 2.04 GHz (RL > 20 dB) with only 1.75 mm in thickness. Interestingly, FCMT/CuCo2S4/PAN and CuCo2S4/PAN composites demonstrated an electromagnetic interference shielding efficiency of more than 90 and 97% at the entire x and ku-band frequencies, respectively.Reza PeymanfarElnaz Selseleh-ZakerinAli AhmadiSeyed Hassan TavassoliNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-15 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Reza Peymanfar Elnaz Selseleh-Zakerin Ali Ahmadi Seyed Hassan Tavassoli Architecting functionalized carbon microtube/carrollite nanocomposite demonstrating significant microwave characteristics
description	Abstract Biomass-derived materials have recently received considerable attention as lightweight, low-cost, and green microwave absorbers. On the other hand, sulfide nanostructures due to their narrow band gaps have demonstrated significant microwave characteristics. In this research, carbon microtubes were fabricated using a biowaste and then functionalized by a novel complementary solvothermal and sonochemistry method. The functionalized carbon microtubes (FCMT) were ornamented by CuCo2S4 nanoparticles as a novel spinel sulfide microwave absorber. The prepared structures illustrated narrow energy band gap and deposition of the sulfide structures augmented the polarizability, desirable for dielectric loss and microwave attenuation. Eventually, the architected structures were blended by polyacrylonitrile (PAN) to estimate their microwave absorbing and antibacterial characteristics. The antibacterial properties against Gram-negative Escherichia coli (E. coli) and Gram-positive Staphylococcus aureus (S. aureus) were scrupulously assessed. Noteworthy, the maximum reflection loss (RL) of the CuCo2S4/PAN with a thickness of 1.75 mm was 61.88 dB at 11.60 GHz, while the architected FCMT/PAN composite gained a broadband efficient bandwidth as wide as 7.91 GHz (RL > 10 dB) and 3.25 GHz (RL > 20 dB) with a thickness of 2.00 mm. More significantly, FCMT/CuCo2S4/PAN demonstrated an efficient bandwidth of 2.04 GHz (RL > 20 dB) with only 1.75 mm in thickness. Interestingly, FCMT/CuCo2S4/PAN and CuCo2S4/PAN composites demonstrated an electromagnetic interference shielding efficiency of more than 90 and 97% at the entire x and ku-band frequencies, respectively.
format	article
author	Reza Peymanfar Elnaz Selseleh-Zakerin Ali Ahmadi Seyed Hassan Tavassoli
author_facet	Reza Peymanfar Elnaz Selseleh-Zakerin Ali Ahmadi Seyed Hassan Tavassoli
author_sort	Reza Peymanfar
title	Architecting functionalized carbon microtube/carrollite nanocomposite demonstrating significant microwave characteristics
title_short	Architecting functionalized carbon microtube/carrollite nanocomposite demonstrating significant microwave characteristics
title_full	Architecting functionalized carbon microtube/carrollite nanocomposite demonstrating significant microwave characteristics
title_fullStr	Architecting functionalized carbon microtube/carrollite nanocomposite demonstrating significant microwave characteristics
title_full_unstemmed	Architecting functionalized carbon microtube/carrollite nanocomposite demonstrating significant microwave characteristics
title_sort	architecting functionalized carbon microtube/carrollite nanocomposite demonstrating significant microwave characteristics
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/38c5cd606f064a48acdd2f814a240db1
work_keys_str_mv	AT rezapeymanfar architectingfunctionalizedcarbonmicrotubecarrollitenanocompositedemonstratingsignificantmicrowavecharacteristics AT elnazselselehzakerin architectingfunctionalizedcarbonmicrotubecarrollitenanocompositedemonstratingsignificantmicrowavecharacteristics AT aliahmadi architectingfunctionalizedcarbonmicrotubecarrollitenanocompositedemonstratingsignificantmicrowavecharacteristics AT seyedhassantavassoli architectingfunctionalizedcarbonmicrotubecarrollitenanocompositedemonstratingsignificantmicrowavecharacteristics
_version_	1718380724636090368

Architecting functionalized carbon microtube/carrollite nanocomposite demonstrating significant microwave characteristics

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