BTEX Removal from Aqueous Solution by Modified Multi-Walled Carbon Nanotubes With Ozone
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Publication Date: | 2018 |
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Format: | Article |
Language: | eng |
Source: | Anuário do Instituto de Geociências (Online) |
Download full: | https://revistas.ufrj.br/index.php/aigeo/article/view/18288 |
Summary: | Modification of multi-walled carbon nanotube (MWCNT) via ozone was carried out to enhance removal of BTEX from aqueous solution. MWCNT was oxidized by ozone (MWCNT-O3) generator at %80 intensity for 5 min and in 30% NaOCl solution. The images of scanning electron microscopy (SEM) results indicated that the MWCNT-O3 have a lower degree of entanglement with increased porosity compared to the non-modified MWCNT. X-ray diffraction (XRD) test showed that structural crystallization was increased following the modification. After change, the Fourier transform infrared (FTIR) analysis showed that the peaks corresponded to the hydroxyl and carboxylic acid groups in MMWCNT-O3 were more intense than those in non-MMWCNT. The optimum condition for initial BTEX concentration, MWCNT-O3 dose, contact time, and pH was 100 mg/L, 2000 mg/L, 20 min, and 5 respectively. In this optimum condition the efficiency of MWCNT-O3 were increased by %43.5. This study concludes that this method is easy to use and also that ozone is an effective modifier for MWCNT in removal of BTEX compounds from the environment. Keywords: BTEX; Ozone; Nanotubes; Aqueous Solution |
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BTEX Removal from Aqueous Solution by Modified Multi-Walled Carbon Nanotubes With OzoneBTEX; Ozone; Nanotubes; Aqueous SolutionModification of multi-walled carbon nanotube (MWCNT) via ozone was carried out to enhance removal of BTEX from aqueous solution. MWCNT was oxidized by ozone (MWCNT-O3) generator at %80 intensity for 5 min and in 30% NaOCl solution. The images of scanning electron microscopy (SEM) results indicated that the MWCNT-O3 have a lower degree of entanglement with increased porosity compared to the non-modified MWCNT. X-ray diffraction (XRD) test showed that structural crystallization was increased following the modification. After change, the Fourier transform infrared (FTIR) analysis showed that the peaks corresponded to the hydroxyl and carboxylic acid groups in MMWCNT-O3 were more intense than those in non-MMWCNT. The optimum condition for initial BTEX concentration, MWCNT-O3 dose, contact time, and pH was 100 mg/L, 2000 mg/L, 20 min, and 5 respectively. In this optimum condition the efficiency of MWCNT-O3 were increased by %43.5. This study concludes that this method is easy to use and also that ozone is an effective modifier for MWCNT in removal of BTEX compounds from the environment. Keywords: BTEX; Ozone; Nanotubes; Aqueous SolutionUniversidade Federal do Rio de JaneiroFadaei, SaeidMoghadam, Fahimeh NakhzariHashemi, MajidPourzamani, Hamidreza2018-07-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://revistas.ufrj.br/index.php/aigeo/article/view/1828810.11137/2017_1_235_242Anuário do Instituto de Geociências; Vol 40, No 1 (2017); 235-242Anuário do Instituto de Geociências; Vol 40, No 1 (2017); 235-2421982-39080101-9759reponame:Anuário do Instituto de Geociências (Online)instname:Universidade Federal do Rio de Janeiro (UFRJ)instacron:UFRJenghttps://revistas.ufrj.br/index.php/aigeo/article/view/18288/10945Copyright (c) 2017 Anuário do Instituto de Geociências da UFRJhttp://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccess2018-08-02T20:14:00Zoai:www.revistas.ufrj.br:article/18288Revistahttps://revistas.ufrj.br/index.php/aigeo/indexPUBhttps://revistas.ufrj.br/index.php/aigeo/oaianuario@igeo.ufrj.br||1982-39080101-9759opendoar:2018-08-02T20:14Anuário do Instituto de Geociências (Online) - Universidade Federal do Rio de Janeiro (UFRJ)false |
dc.title.none.fl_str_mv |
BTEX Removal from Aqueous Solution by Modified Multi-Walled Carbon Nanotubes With Ozone |
title |
BTEX Removal from Aqueous Solution by Modified Multi-Walled Carbon Nanotubes With Ozone |
spellingShingle |
BTEX Removal from Aqueous Solution by Modified Multi-Walled Carbon Nanotubes With Ozone Fadaei, Saeid BTEX; Ozone; Nanotubes; Aqueous Solution |
title_short |
BTEX Removal from Aqueous Solution by Modified Multi-Walled Carbon Nanotubes With Ozone |
title_full |
BTEX Removal from Aqueous Solution by Modified Multi-Walled Carbon Nanotubes With Ozone |
title_fullStr |
BTEX Removal from Aqueous Solution by Modified Multi-Walled Carbon Nanotubes With Ozone |
title_full_unstemmed |
BTEX Removal from Aqueous Solution by Modified Multi-Walled Carbon Nanotubes With Ozone |
title_sort |
BTEX Removal from Aqueous Solution by Modified Multi-Walled Carbon Nanotubes With Ozone |
author |
Fadaei, Saeid |
author_facet |
Fadaei, Saeid Moghadam, Fahimeh Nakhzari Hashemi, Majid Pourzamani, Hamidreza |
author_role |
author |
author2 |
Moghadam, Fahimeh Nakhzari Hashemi, Majid Pourzamani, Hamidreza |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
|
dc.contributor.author.fl_str_mv |
Fadaei, Saeid Moghadam, Fahimeh Nakhzari Hashemi, Majid Pourzamani, Hamidreza |
dc.subject.none.fl_str_mv |
|
dc.subject.por.fl_str_mv |
BTEX; Ozone; Nanotubes; Aqueous Solution |
topic |
BTEX; Ozone; Nanotubes; Aqueous Solution |
description |
Modification of multi-walled carbon nanotube (MWCNT) via ozone was carried out to enhance removal of BTEX from aqueous solution. MWCNT was oxidized by ozone (MWCNT-O3) generator at %80 intensity for 5 min and in 30% NaOCl solution. The images of scanning electron microscopy (SEM) results indicated that the MWCNT-O3 have a lower degree of entanglement with increased porosity compared to the non-modified MWCNT. X-ray diffraction (XRD) test showed that structural crystallization was increased following the modification. After change, the Fourier transform infrared (FTIR) analysis showed that the peaks corresponded to the hydroxyl and carboxylic acid groups in MMWCNT-O3 were more intense than those in non-MMWCNT. The optimum condition for initial BTEX concentration, MWCNT-O3 dose, contact time, and pH was 100 mg/L, 2000 mg/L, 20 min, and 5 respectively. In this optimum condition the efficiency of MWCNT-O3 were increased by %43.5. This study concludes that this method is easy to use and also that ozone is an effective modifier for MWCNT in removal of BTEX compounds from the environment. Keywords: BTEX; Ozone; Nanotubes; Aqueous Solution |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-07-12 |
dc.type.none.fl_str_mv |
|
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://revistas.ufrj.br/index.php/aigeo/article/view/18288 10.11137/2017_1_235_242 |
url |
https://revistas.ufrj.br/index.php/aigeo/article/view/18288 |
identifier_str_mv |
10.11137/2017_1_235_242 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://revistas.ufrj.br/index.php/aigeo/article/view/18288/10945 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2017 Anuário do Instituto de Geociências da UFRJ http://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2017 Anuário do Instituto de Geociências da UFRJ http://creativecommons.org/licenses/by/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal do Rio de Janeiro |
publisher.none.fl_str_mv |
Universidade Federal do Rio de Janeiro |
dc.source.none.fl_str_mv |
Anuário do Instituto de Geociências; Vol 40, No 1 (2017); 235-242 Anuário do Instituto de Geociências; Vol 40, No 1 (2017); 235-242 1982-3908 0101-9759 reponame:Anuário do Instituto de Geociências (Online) instname:Universidade Federal do Rio de Janeiro (UFRJ) instacron:UFRJ |
instname_str |
Universidade Federal do Rio de Janeiro (UFRJ) |
instacron_str |
UFRJ |
institution |
UFRJ |
reponame_str |
Anuário do Instituto de Geociências (Online) |
collection |
Anuário do Instituto de Geociências (Online) |
repository.name.fl_str_mv |
Anuário do Instituto de Geociências (Online) - Universidade Federal do Rio de Janeiro (UFRJ) |
repository.mail.fl_str_mv |
anuario@igeo.ufrj.br|| |
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1797053536359415808 |