Catalytic Removal of Toluene from Air Streams by Cobalt Oxide Supported on Sepiolite
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Journal of the Brazilian Chemical Society (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532019000901933 |
Resumo: | Removal of toluene using cobalt oxide supported on sepiolite catalysts was investigated. Deposition precipitation method was used to prepare the catalysts. The catalysts were characterized using X-ray diffraction, field emission scanning electron microscopy, energy dispersive X-ray spectroscopy, thermogravimetric analysis (TGA) and Brunauer-Emmet-Teller methods. The results of catalytic testing showed that 20% cobalt oxide/sepiolite (Co20/Sep) had higher catalytic activity for degradation of toluene. A temperature of 400 ºC was found to be the optimum calcination temperature for Co20/Sep, since it achieved 90% toluene conversion at about 300 ºC. The results showed that the selectivity of the catalysts towards CO2 was complete and no byproducts were detected. Stability tests also indicated that Co20/Sep remains stable at 320 ºC with complete conversion of toluene after 24 h. In conclusion, the results of this study confirmed sepiolite-supported cobalt oxide catalyst as an efficient catalyst for degradation of toluene. |
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Journal of the Brazilian Chemical Society (Online) |
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Catalytic Removal of Toluene from Air Streams by Cobalt Oxide Supported on Sepiolitesepiolitecobalt oxidetoluenecatalytic degradationRemoval of toluene using cobalt oxide supported on sepiolite catalysts was investigated. Deposition precipitation method was used to prepare the catalysts. The catalysts were characterized using X-ray diffraction, field emission scanning electron microscopy, energy dispersive X-ray spectroscopy, thermogravimetric analysis (TGA) and Brunauer-Emmet-Teller methods. The results of catalytic testing showed that 20% cobalt oxide/sepiolite (Co20/Sep) had higher catalytic activity for degradation of toluene. A temperature of 400 ºC was found to be the optimum calcination temperature for Co20/Sep, since it achieved 90% toluene conversion at about 300 ºC. The results showed that the selectivity of the catalysts towards CO2 was complete and no byproducts were detected. Stability tests also indicated that Co20/Sep remains stable at 320 ºC with complete conversion of toluene after 24 h. In conclusion, the results of this study confirmed sepiolite-supported cobalt oxide catalyst as an efficient catalyst for degradation of toluene.Sociedade Brasileira de Química2019-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532019000901933Journal of the Brazilian Chemical Society v.30 n.9 2019reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.21577/0103-5053.20190106info:eu-repo/semantics/openAccessArdakani,Mahdi B.Mahabadi,Hasan A.Jafari,Ahmad J.eng2019-09-11T00:00:00Zoai:scielo:S0103-50532019000901933Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2019-09-11T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false |
dc.title.none.fl_str_mv |
Catalytic Removal of Toluene from Air Streams by Cobalt Oxide Supported on Sepiolite |
title |
Catalytic Removal of Toluene from Air Streams by Cobalt Oxide Supported on Sepiolite |
spellingShingle |
Catalytic Removal of Toluene from Air Streams by Cobalt Oxide Supported on Sepiolite Ardakani,Mahdi B. sepiolite cobalt oxide toluene catalytic degradation |
title_short |
Catalytic Removal of Toluene from Air Streams by Cobalt Oxide Supported on Sepiolite |
title_full |
Catalytic Removal of Toluene from Air Streams by Cobalt Oxide Supported on Sepiolite |
title_fullStr |
Catalytic Removal of Toluene from Air Streams by Cobalt Oxide Supported on Sepiolite |
title_full_unstemmed |
Catalytic Removal of Toluene from Air Streams by Cobalt Oxide Supported on Sepiolite |
title_sort |
Catalytic Removal of Toluene from Air Streams by Cobalt Oxide Supported on Sepiolite |
author |
Ardakani,Mahdi B. |
author_facet |
Ardakani,Mahdi B. Mahabadi,Hasan A. Jafari,Ahmad J. |
author_role |
author |
author2 |
Mahabadi,Hasan A. Jafari,Ahmad J. |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Ardakani,Mahdi B. Mahabadi,Hasan A. Jafari,Ahmad J. |
dc.subject.por.fl_str_mv |
sepiolite cobalt oxide toluene catalytic degradation |
topic |
sepiolite cobalt oxide toluene catalytic degradation |
description |
Removal of toluene using cobalt oxide supported on sepiolite catalysts was investigated. Deposition precipitation method was used to prepare the catalysts. The catalysts were characterized using X-ray diffraction, field emission scanning electron microscopy, energy dispersive X-ray spectroscopy, thermogravimetric analysis (TGA) and Brunauer-Emmet-Teller methods. The results of catalytic testing showed that 20% cobalt oxide/sepiolite (Co20/Sep) had higher catalytic activity for degradation of toluene. A temperature of 400 ºC was found to be the optimum calcination temperature for Co20/Sep, since it achieved 90% toluene conversion at about 300 ºC. The results showed that the selectivity of the catalysts towards CO2 was complete and no byproducts were detected. Stability tests also indicated that Co20/Sep remains stable at 320 ºC with complete conversion of toluene after 24 h. In conclusion, the results of this study confirmed sepiolite-supported cobalt oxide catalyst as an efficient catalyst for degradation of toluene. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-09-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532019000901933 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532019000901933 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.21577/0103-5053.20190106 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Química |
publisher.none.fl_str_mv |
Sociedade Brasileira de Química |
dc.source.none.fl_str_mv |
Journal of the Brazilian Chemical Society v.30 n.9 2019 reponame:Journal of the Brazilian Chemical Society (Online) instname:Sociedade Brasileira de Química (SBQ) instacron:SBQ |
instname_str |
Sociedade Brasileira de Química (SBQ) |
instacron_str |
SBQ |
institution |
SBQ |
reponame_str |
Journal of the Brazilian Chemical Society (Online) |
collection |
Journal of the Brazilian Chemical Society (Online) |
repository.name.fl_str_mv |
Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ) |
repository.mail.fl_str_mv |
||office@jbcs.sbq.org.br |
_version_ |
1750318182144409600 |