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The effect of reactor temperature and hydrogen flow rate on carbon nanofibers (CNFs) characterizations and their adsorption capacity

Helical and straight CNFs are prepared using Floating Catalyst- Chemical Vapor Deposition (FC-CVD) from decomposition of ethanol as carbon source, hydrogen as carrier gas and argon as purge gas. The effect of reactor temperature (700 - 950°C) and hydrogen flow rate (100 - 350 mL/min) on BET surface...

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Main Authors: Abdul Halif, Norzilah, Ahmadun, Fakhru'l-Razi, Choong, Thomas Shean Yaw, Abdullah, Luqman Chuah
Format: Conference or Workshop Item
Language:English
Published: 2012
Online Access:http://psasir.upm.edu.my/id/eprint/27254/1/ID%2027254.pdf
http://psasir.upm.edu.my/id/eprint/27254/
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spelling my.upm.eprints.272542017-02-23T13:31:54Z http://psasir.upm.edu.my/id/eprint/27254/ The effect of reactor temperature and hydrogen flow rate on carbon nanofibers (CNFs) characterizations and their adsorption capacity Abdul Halif, Norzilah Ahmadun, Fakhru'l-Razi Choong, Thomas Shean Yaw Abdullah, Luqman Chuah Helical and straight CNFs are prepared using Floating Catalyst- Chemical Vapor Deposition (FC-CVD) from decomposition of ethanol as carbon source, hydrogen as carrier gas and argon as purge gas. The effect of reactor temperature (700 - 950°C) and hydrogen flow rate (100 - 350 mL/min) on BET surface area and pore volume of CNFs and the correlation of these properties onto their adsorption capacity of Methylene Blue (MB) and phenol are investigated. It is found that the increasing of reactor temperature and hydrogen flow rate negatively affect the development of the BET surface area and pore volume. CNFs having maximum BET surface area and pore volume can be synthesized at low reactor temperature and low hydrogen flow rate which are 700°C and 150 mL/min, respectively. The highest BET surface area and pore volume are achieved at 89 m2/g and 0.1927 cm3/g, accordingly. Meanwhile, the highest adsorption capacity of CNFs for 10 mg/L ME and phenol are achieved at 32 mg/g and 12.68 mg/g, respectively, at reactor temperature of 700°C and hydrogen flow rate of 150 mL/min. Nonetheless, the adsorption capacity of CNFs using MB and phenol is not completely consistent with the relationship between surface area and pore volume due to other factors such a surface chemistry of CNFs and the functional groups of adsorbates. 2012 Conference or Workshop Item PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/27254/1/ID%2027254.pdf Abdul Halif, Norzilah and Ahmadun, Fakhru'l-Razi and Choong, Thomas Shean Yaw and Abdullah, Luqman Chuah (2012) The effect of reactor temperature and hydrogen flow rate on carbon nanofibers (CNFs) characterizations and their adsorption capacity. In: 6th Pacific Basin Conference on Adsorption Science and Technology, 20-23 May 2012, Taipei, Taiwan. .
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description Helical and straight CNFs are prepared using Floating Catalyst- Chemical Vapor Deposition (FC-CVD) from decomposition of ethanol as carbon source, hydrogen as carrier gas and argon as purge gas. The effect of reactor temperature (700 - 950°C) and hydrogen flow rate (100 - 350 mL/min) on BET surface area and pore volume of CNFs and the correlation of these properties onto their adsorption capacity of Methylene Blue (MB) and phenol are investigated. It is found that the increasing of reactor temperature and hydrogen flow rate negatively affect the development of the BET surface area and pore volume. CNFs having maximum BET surface area and pore volume can be synthesized at low reactor temperature and low hydrogen flow rate which are 700°C and 150 mL/min, respectively. The highest BET surface area and pore volume are achieved at 89 m2/g and 0.1927 cm3/g, accordingly. Meanwhile, the highest adsorption capacity of CNFs for 10 mg/L ME and phenol are achieved at 32 mg/g and 12.68 mg/g, respectively, at reactor temperature of 700°C and hydrogen flow rate of 150 mL/min. Nonetheless, the adsorption capacity of CNFs using MB and phenol is not completely consistent with the relationship between surface area and pore volume due to other factors such a surface chemistry of CNFs and the functional groups of adsorbates.
format Conference or Workshop Item
author Abdul Halif, Norzilah
Ahmadun, Fakhru'l-Razi
Choong, Thomas Shean Yaw
Abdullah, Luqman Chuah
spellingShingle Abdul Halif, Norzilah
Ahmadun, Fakhru'l-Razi
Choong, Thomas Shean Yaw
Abdullah, Luqman Chuah
The effect of reactor temperature and hydrogen flow rate on carbon nanofibers (CNFs) characterizations and their adsorption capacity
author_facet Abdul Halif, Norzilah
Ahmadun, Fakhru'l-Razi
Choong, Thomas Shean Yaw
Abdullah, Luqman Chuah
author_sort Abdul Halif, Norzilah
title The effect of reactor temperature and hydrogen flow rate on carbon nanofibers (CNFs) characterizations and their adsorption capacity
title_short The effect of reactor temperature and hydrogen flow rate on carbon nanofibers (CNFs) characterizations and their adsorption capacity
title_full The effect of reactor temperature and hydrogen flow rate on carbon nanofibers (CNFs) characterizations and their adsorption capacity
title_fullStr The effect of reactor temperature and hydrogen flow rate on carbon nanofibers (CNFs) characterizations and their adsorption capacity
title_full_unstemmed The effect of reactor temperature and hydrogen flow rate on carbon nanofibers (CNFs) characterizations and their adsorption capacity
title_sort effect of reactor temperature and hydrogen flow rate on carbon nanofibers (cnfs) characterizations and their adsorption capacity
publishDate 2012
url http://psasir.upm.edu.my/id/eprint/27254/1/ID%2027254.pdf
http://psasir.upm.edu.my/id/eprint/27254/
_version_ 1643829130819534848
score 13.211869

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