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Registro Completo |
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
26/02/2014 |
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Data da última atualização: |
04/11/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SANTOS, J. V. dos; MANGRICH, A. S.; PEREIRA, B. F.; PILLON, C. N.; NOVOTNY, E. H.; BONAGAMBA, T. J.; ABBT-BRAUNG, G.; FRIMMEL, F. H. |
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Afiliação: |
ETELVINO HENRIQUE NOVOTNY, CNPS. |
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Título: |
13C NMR and EPR spectroscopic evaluation of oil shale mined soil recuperation. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
Journal of the Brazilian Chemical Society, v. 24, n. 2, p. 320-326, 2013. |
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DOI: |
https://doi.org/10.5935/0103-5053.20130041 |
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Idioma: |
Inglês |
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Conteúdo: |
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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Palavras-Chave: |
13C NMR spectroscopy; 2D hetero-spectral correlation spectroscopy; Study of mining soil recuperation. |
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Thesaurus Nal: |
soil organic matter. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/98326/1/13C-NMR-and-EPR-Spectroscopic-Evaluation-of-Oil-Shale-Mined-Soil-Recuperation.pdf
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Marc: |
LEADER 01995naa a2200265 a 4500
001 1981314
005 2021-11-04
008 2013 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.5935/0103-5053.20130041$2DOI
100 1 $aSANTOS, J. V. dos
245 $a13C NMR and EPR spectroscopic evaluation of oil shale mined soil recuperation.$h[electronic resource]
260 $c2013
520 $aIn 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.
650 $asoil organic matter
653 $a13C NMR spectroscopy
653 $a2D hetero-spectral correlation spectroscopy
653 $aStudy of mining soil recuperation
700 1 $aMANGRICH, A. S.
700 1 $aPEREIRA, B. F.
700 1 $aPILLON, C. N.
700 1 $aNOVOTNY, E. H.
700 1 $aBONAGAMBA, T. J.
700 1 $aABBT-BRAUNG, G.
700 1 $aFRIMMEL, F. H.
773 $tJournal of the Brazilian Chemical Society$gv. 24, n. 2, p. 320-326, 2013.
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Embrapa Solos (CNPS) |
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| 1. |  | SANTOS, J. V. dos; MANGRICH, A. S.; PEREIRA, B. F.; PILLON, C. N.; NOVOTNY, E. H.; BONAGAMBA, T. J.; ABBT-BRAUNG, G.; FRIMMEL, F. H. 13C NMR and EPR spectroscopic evaluation of oil shale mined soil recuperation. Journal of the Brazilian Chemical Society, v. 24, n. 2, p. 320-326, 2013.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
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