Efeito da ativação química nas propriedades de superfície de xisto retortado
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Química Nova (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422016000400431 |
Resumo: | A pyrolyzed oil shale by-product known as retorted shale was functionalized with HCl, HNO3, H2SO4, H3PO4, HNO3/H2SO4 (3:1), Fenton's reagent, (NH4)2S2O7, NaOH, and KMnO4 using either ultrasound (Route 1) or reflux (Route 2). The products obtained were evaluated in terms of cation exchange capacity (CEC). Structural characterization was performed using X-ray diffraction, X-ray fluorescence, and infrared spectroscopy to identify the functional groups present. The best results were achieved using Route 2 with solutions of either H3PO4 or HNO3/H2SO4 (3:1), giving CEC values of 315 and 316 mmolc kg-1, respectively. The pyrolyzed oil shale functionalized using Route 2 (reflux) with NaOH as the activating agent showed the highest sorption of methylene blue (35.6 mg g-1). The main mechanisms observed for oil shale by-product functionalization were oxidation, nitration, and CaO leaching. |
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Efeito da ativação química nas propriedades de superfície de xisto retortadocation exchange capacitypyrolyzed shalemethylene bluefunctional groupsA pyrolyzed oil shale by-product known as retorted shale was functionalized with HCl, HNO3, H2SO4, H3PO4, HNO3/H2SO4 (3:1), Fenton's reagent, (NH4)2S2O7, NaOH, and KMnO4 using either ultrasound (Route 1) or reflux (Route 2). The products obtained were evaluated in terms of cation exchange capacity (CEC). Structural characterization was performed using X-ray diffraction, X-ray fluorescence, and infrared spectroscopy to identify the functional groups present. The best results were achieved using Route 2 with solutions of either H3PO4 or HNO3/H2SO4 (3:1), giving CEC values of 315 and 316 mmolc kg-1, respectively. The pyrolyzed oil shale functionalized using Route 2 (reflux) with NaOH as the activating agent showed the highest sorption of methylene blue (35.6 mg g-1). The main mechanisms observed for oil shale by-product functionalization were oxidation, nitration, and CaO leaching.Sociedade Brasileira de Química2016-05-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422016000400431Química Nova v.39 n.4 2016reponame:Química Nova (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.5935/0100-4042.20160051info:eu-repo/semantics/openAccessDoumer,Marta ElianeAbate,GilbertoMesserschmidt,IaraAssis,Lívia MariMartinazzo,RosaneSilveira,Carlos Augusto Posserpor2016-05-25T00:00:00Zoai:scielo:S0100-40422016000400431Revistahttps://www.scielo.br/j/qn/ONGhttps://old.scielo.br/oai/scielo-oai.phpquimicanova@sbq.org.br1678-70640100-4042opendoar:2016-05-25T00:00Química Nova (Online) - Sociedade Brasileira de Química (SBQ)false |
dc.title.none.fl_str_mv |
Efeito da ativação química nas propriedades de superfície de xisto retortado |
title |
Efeito da ativação química nas propriedades de superfície de xisto retortado |
spellingShingle |
Efeito da ativação química nas propriedades de superfície de xisto retortado Doumer,Marta Eliane cation exchange capacity pyrolyzed shale methylene blue functional groups |
title_short |
Efeito da ativação química nas propriedades de superfície de xisto retortado |
title_full |
Efeito da ativação química nas propriedades de superfície de xisto retortado |
title_fullStr |
Efeito da ativação química nas propriedades de superfície de xisto retortado |
title_full_unstemmed |
Efeito da ativação química nas propriedades de superfície de xisto retortado |
title_sort |
Efeito da ativação química nas propriedades de superfície de xisto retortado |
author |
Doumer,Marta Eliane |
author_facet |
Doumer,Marta Eliane Abate,Gilberto Messerschmidt,Iara Assis,Lívia Mari Martinazzo,Rosane Silveira,Carlos Augusto Posser |
author_role |
author |
author2 |
Abate,Gilberto Messerschmidt,Iara Assis,Lívia Mari Martinazzo,Rosane Silveira,Carlos Augusto Posser |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Doumer,Marta Eliane Abate,Gilberto Messerschmidt,Iara Assis,Lívia Mari Martinazzo,Rosane Silveira,Carlos Augusto Posser |
dc.subject.por.fl_str_mv |
cation exchange capacity pyrolyzed shale methylene blue functional groups |
topic |
cation exchange capacity pyrolyzed shale methylene blue functional groups |
description |
A pyrolyzed oil shale by-product known as retorted shale was functionalized with HCl, HNO3, H2SO4, H3PO4, HNO3/H2SO4 (3:1), Fenton's reagent, (NH4)2S2O7, NaOH, and KMnO4 using either ultrasound (Route 1) or reflux (Route 2). The products obtained were evaluated in terms of cation exchange capacity (CEC). Structural characterization was performed using X-ray diffraction, X-ray fluorescence, and infrared spectroscopy to identify the functional groups present. The best results were achieved using Route 2 with solutions of either H3PO4 or HNO3/H2SO4 (3:1), giving CEC values of 315 and 316 mmolc kg-1, respectively. The pyrolyzed oil shale functionalized using Route 2 (reflux) with NaOH as the activating agent showed the highest sorption of methylene blue (35.6 mg g-1). The main mechanisms observed for oil shale by-product functionalization were oxidation, nitration, and CaO leaching. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-05-01 |
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=S0100-40422016000400431 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422016000400431 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
10.5935/0100-4042.20160051 |
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 |
Química Nova v.39 n.4 2016 reponame:Química Nova (Online) instname:Sociedade Brasileira de Química (SBQ) instacron:SBQ |
instname_str |
Sociedade Brasileira de Química (SBQ) |
instacron_str |
SBQ |
institution |
SBQ |
reponame_str |
Química Nova (Online) |
collection |
Química Nova (Online) |
repository.name.fl_str_mv |
Química Nova (Online) - Sociedade Brasileira de Química (SBQ) |
repository.mail.fl_str_mv |
quimicanova@sbq.org.br |
_version_ |
1750318117490262016 |