13C NMR and EPR spectroscopic evaluation of oil shale mined soil recuperation
Autor(a) principal: | |
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Data de Publicação: | 2013 |
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=S0103-50532013000200020 |
Resumo: | In this work, native forest soil (NFS) organic matter (SOM) sample and SOM samples from a neighboring forest soil area of an oil shale mine which is being rehabilitated for thirty years (RFS) were analyzed. X-band electron paramagnetic resonance (EPR) and solid-state 13C nuclear magnetic resonance (NMR) spectroscopies were used to evaluate the soil reclamation of the Brazilian oil shale mining process. Two-dimensional heterospectral correlation studies of the results obtained from EPR and 13C NMR were used to obtain information about SOM structures and their interactions with residual paramagnetic metal ion. The signal of the residual metallic oxycation, VO2+ correlated positively with uronic acid-type hydrophilic organic structures, determined from the 13C NMR spectra, and correlated negatively with the organic free radical (OFR) signal associated with oxygen atoms (g = 2.0042). The hydrophobic aromatic structures correlate positively with the EPR OFR signal associated with carbon atoms (g = 2.0022). The data from the two spectroscopic magnetic techniques show that the used recuperation process is effective. |
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13C NMR and EPR spectroscopic evaluation of oil shale mined soil recuperation13C NMR spectroscopyEPR spectroscopysoil organic matterstudy of mining soil recuperation2D hetero-spectral correlation spectroscopyIn this work, native forest soil (NFS) organic matter (SOM) sample and SOM samples from a neighboring forest soil area of an oil shale mine which is being rehabilitated for thirty years (RFS) were analyzed. X-band electron paramagnetic resonance (EPR) and solid-state 13C nuclear magnetic resonance (NMR) spectroscopies were used to evaluate the soil reclamation of the Brazilian oil shale mining process. Two-dimensional heterospectral correlation studies of the results obtained from EPR and 13C NMR were used to obtain information about SOM structures and their interactions with residual paramagnetic metal ion. The signal of the residual metallic oxycation, VO2+ correlated positively with uronic acid-type hydrophilic organic structures, determined from the 13C NMR spectra, and correlated negatively with the organic free radical (OFR) signal associated with oxygen atoms (g = 2.0042). The hydrophobic aromatic structures correlate positively with the EPR OFR signal associated with carbon atoms (g = 2.0022). The data from the two spectroscopic magnetic techniques show that the used recuperation process is effective.Sociedade Brasileira de Química2013-02-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532013000200020Journal of the Brazilian Chemical Society v.24 n.2 2013reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.5935/0103-5053.20130041info:eu-repo/semantics/openAccessSantos,J. V. dosMangrich,A. S.Pereira,B. F.Pillon,C. N.Novotny,E. H.Bonagamba,T. J.Abbt-Braun,G.Frimmel,F. H.eng2013-05-20T00:00:00Zoai:scielo:S0103-50532013000200020Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2013-05-20T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false |
dc.title.none.fl_str_mv |
13C NMR and EPR spectroscopic evaluation of oil shale mined soil recuperation |
title |
13C NMR and EPR spectroscopic evaluation of oil shale mined soil recuperation |
spellingShingle |
13C NMR and EPR spectroscopic evaluation of oil shale mined soil recuperation Santos,J. V. dos 13C NMR spectroscopy EPR spectroscopy soil organic matter study of mining soil recuperation 2D hetero-spectral correlation spectroscopy |
title_short |
13C NMR and EPR spectroscopic evaluation of oil shale mined soil recuperation |
title_full |
13C NMR and EPR spectroscopic evaluation of oil shale mined soil recuperation |
title_fullStr |
13C NMR and EPR spectroscopic evaluation of oil shale mined soil recuperation |
title_full_unstemmed |
13C NMR and EPR spectroscopic evaluation of oil shale mined soil recuperation |
title_sort |
13C NMR and EPR spectroscopic evaluation of oil shale mined soil recuperation |
author |
Santos,J. V. dos |
author_facet |
Santos,J. V. dos Mangrich,A. S. Pereira,B. F. Pillon,C. N. Novotny,E. H. Bonagamba,T. J. Abbt-Braun,G. Frimmel,F. H. |
author_role |
author |
author2 |
Mangrich,A. S. Pereira,B. F. Pillon,C. N. Novotny,E. H. Bonagamba,T. J. Abbt-Braun,G. Frimmel,F. H. |
author2_role |
author author author author author author author |
dc.contributor.author.fl_str_mv |
Santos,J. V. dos Mangrich,A. S. Pereira,B. F. Pillon,C. N. Novotny,E. H. Bonagamba,T. J. Abbt-Braun,G. Frimmel,F. H. |
dc.subject.por.fl_str_mv |
13C NMR spectroscopy EPR spectroscopy soil organic matter study of mining soil recuperation 2D hetero-spectral correlation spectroscopy |
topic |
13C NMR spectroscopy EPR spectroscopy soil organic matter study of mining soil recuperation 2D hetero-spectral correlation spectroscopy |
description |
In this work, native forest soil (NFS) organic matter (SOM) sample and SOM samples from a neighboring forest soil area of an oil shale mine which is being rehabilitated for thirty years (RFS) were analyzed. X-band electron paramagnetic resonance (EPR) and solid-state 13C nuclear magnetic resonance (NMR) spectroscopies were used to evaluate the soil reclamation of the Brazilian oil shale mining process. Two-dimensional heterospectral correlation studies of the results obtained from EPR and 13C NMR were used to obtain information about SOM structures and their interactions with residual paramagnetic metal ion. The signal of the residual metallic oxycation, VO2+ correlated positively with uronic acid-type hydrophilic organic structures, determined from the 13C NMR spectra, and correlated negatively with the organic free radical (OFR) signal associated with oxygen atoms (g = 2.0042). The hydrophobic aromatic structures correlate positively with the EPR OFR signal associated with carbon atoms (g = 2.0022). The data from the two spectroscopic magnetic techniques show that the used recuperation process is effective. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-02-01 |
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=S0103-50532013000200020 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532013000200020 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.5935/0103-5053.20130041 |
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.24 n.2 2013 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 |
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1750318174483513344 |