DISPERSION AND FLOATING PERCENTAGE AS A SIMPLE INDICATOR OF THE AMOUNT OF AMORPHOUS CARBONS IN CARBON NANOTUBE ARRAYS

Carbon nanotubes contain impurities and deamorphization is one of the methods of their purification. In this study, for the first time, a solution of piranha with a ratio of 3:1 (30 ml sulfuric acid + 10 ml hydrogen peroxide) as well as microwave irradiation with processing time of 30 minutes were u...

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Autores principales:	F. Delshad, M. Maghrebi, M. Baniadam
Formato:	article
Lenguaje:	FA
Publicado:	Isfahan University of Technology 2021
Materias:	carbon nanotube array amorphous piranha microwave removal of amorphous carbon. Materials of engineering and construction. Mechanics of materials TA401-492
Acceso en línea:	https://doaj.org/article/78da21f3740f4bd5bb246a4bf2d43d2a
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spelling	oai:doaj.org-article:78da21f3740f4bd5bb246a4bf2d43d2a2021-11-22T05:06:08ZDISPERSION AND FLOATING PERCENTAGE AS A SIMPLE INDICATOR OF THE AMOUNT OF AMORPHOUS CARBONS IN CARBON NANOTUBE ARRAYS2251-600X2423-5733https://doaj.org/article/78da21f3740f4bd5bb246a4bf2d43d2a2021-09-01T00:00:00Zhttp://jame.iut.ac.ir/article-1-1105-en.htmlhttps://doaj.org/toc/2251-600Xhttps://doaj.org/toc/2423-5733Carbon nanotubes contain impurities and deamorphization is one of the methods of their purification. In this study, for the first time, a solution of piranha with a ratio of 3:1 (30 ml sulfuric acid + 10 ml hydrogen peroxide) as well as microwave irradiation with processing time of 30 minutes were used to remove amorphous carbon from the nanotube arrays. Ultrasonication was performed to disperse pristine and purified carbon nanotubes in water and centrifugation was performed to separate large particles. To assess the removal of amorphous carbon, new characterization methods such as dispersed percent and floating percent were used. It was observed that with increase in the ultrasonication time (from 0 to 50 minutes), the dispersed percentage of treated arrays was increased (about 47%), while the floating percentage of pure array decreased (about 20%). These results are ascribed to the removal of amorphous carbon. The results of the thermo gravimetric analysis (TGA) were in good agreement with the results obtained from the newly proposed characterization methods.F. DelshadM. MaghrebiM. BaniadamIsfahan University of Technologyarticlecarbon nanotube arrayamorphouspiranhamicrowaveremoval of amorphous carbon.Materials of engineering and construction. Mechanics of materialsTA401-492FAJournal of Advanced Materials in Engineering, Vol 40, Iss 2, Pp 127-140 (2021)
institution	DOAJ
collection	DOAJ
language	FA
topic	carbon nanotube array amorphous piranha microwave removal of amorphous carbon. Materials of engineering and construction. Mechanics of materials TA401-492
spellingShingle	carbon nanotube array amorphous piranha microwave removal of amorphous carbon. Materials of engineering and construction. Mechanics of materials TA401-492 F. Delshad M. Maghrebi M. Baniadam DISPERSION AND FLOATING PERCENTAGE AS A SIMPLE INDICATOR OF THE AMOUNT OF AMORPHOUS CARBONS IN CARBON NANOTUBE ARRAYS
description	Carbon nanotubes contain impurities and deamorphization is one of the methods of their purification. In this study, for the first time, a solution of piranha with a ratio of 3:1 (30 ml sulfuric acid + 10 ml hydrogen peroxide) as well as microwave irradiation with processing time of 30 minutes were used to remove amorphous carbon from the nanotube arrays. Ultrasonication was performed to disperse pristine and purified carbon nanotubes in water and centrifugation was performed to separate large particles. To assess the removal of amorphous carbon, new characterization methods such as dispersed percent and floating percent were used. It was observed that with increase in the ultrasonication time (from 0 to 50 minutes), the dispersed percentage of treated arrays was increased (about 47%), while the floating percentage of pure array decreased (about 20%). These results are ascribed to the removal of amorphous carbon. The results of the thermo gravimetric analysis (TGA) were in good agreement with the results obtained from the newly proposed characterization methods.
format	article
author	F. Delshad M. Maghrebi M. Baniadam
author_facet	F. Delshad M. Maghrebi M. Baniadam
author_sort	F. Delshad
title	DISPERSION AND FLOATING PERCENTAGE AS A SIMPLE INDICATOR OF THE AMOUNT OF AMORPHOUS CARBONS IN CARBON NANOTUBE ARRAYS
title_short	DISPERSION AND FLOATING PERCENTAGE AS A SIMPLE INDICATOR OF THE AMOUNT OF AMORPHOUS CARBONS IN CARBON NANOTUBE ARRAYS
title_full	DISPERSION AND FLOATING PERCENTAGE AS A SIMPLE INDICATOR OF THE AMOUNT OF AMORPHOUS CARBONS IN CARBON NANOTUBE ARRAYS
title_fullStr	DISPERSION AND FLOATING PERCENTAGE AS A SIMPLE INDICATOR OF THE AMOUNT OF AMORPHOUS CARBONS IN CARBON NANOTUBE ARRAYS
title_full_unstemmed	DISPERSION AND FLOATING PERCENTAGE AS A SIMPLE INDICATOR OF THE AMOUNT OF AMORPHOUS CARBONS IN CARBON NANOTUBE ARRAYS
title_sort	dispersion and floating percentage as a simple indicator of the amount of amorphous carbons in carbon nanotube arrays
publisher	Isfahan University of Technology
publishDate	2021
url	https://doaj.org/article/78da21f3740f4bd5bb246a4bf2d43d2a
work_keys_str_mv	AT fdelshad dispersionandfloatingpercentageasasimpleindicatoroftheamountofamorphouscarbonsincarbonnanotubearrays AT mmaghrebi dispersionandfloatingpercentageasasimpleindicatoroftheamountofamorphouscarbonsincarbonnanotubearrays AT mbaniadam dispersionandfloatingpercentageasasimpleindicatoroftheamountofamorphouscarbonsincarbonnanotubearrays
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DISPERSION AND FLOATING PERCENTAGE AS A SIMPLE INDICATOR OF THE AMOUNT OF AMORPHOUS CARBONS IN CARBON NANOTUBE ARRAYS

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