%0 Journal Article %1 WOS:000540870300074 %A da Silva, Leila Soares %A Constantino, Isabela Carreira %A Bento, Lucas Raimundo %A Tadini, Amanda Maria %A Bisinoti, Marcia Cristina %A Boscolo, Mauricio %A Ferreira, Odair Pastor %A Mounier, Stephane %A Piccolo, Alessandro %A Spaccini, Riccardo %A Cornelio, Marinonio Lopes %A Moreira, Altair Benedito %C THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND %D 2020 %I PERGAMON-ELSEVIER SCIENCE LTD %J CHEMOSPHERE %K C-13-CPMAS-NMR; Complexation; Humic-like Nutrients} Soil carbonization; matter; organic substances; {Hydrothermal %R 10.1016/j.chemosphere.2020.127110 %T Humic extracts from hydrochar and Amazonian Anthrosol: Molecular features and metal binding properties using EEM-PARAFAC and 2D FTIR correlation analyses %V 256 %X Organic matter plays many roles in the soil ecosystem. One property of the substance concerns the metal complexation and interaction with organic contaminants. In this sense, the humic substances (HS), a heterogeneous mixture of compounds, naturally derived from degradation of biomass, have been widely studied in environmental sciences. Recent advances showed a new way to produce humic-like substances (HLS) through hydrothermal carbonization of biomass. Thus, this study aimed to evaluate the HLS of hydrochars, produced by using a mixture of sugarcane bagasse and vinasse with sulfuric acid added (1 and 4% v/v), and to assess their interactions with metal ions, (Fe(III), Al(III), Cu(II) and Co(II)) using EEM-PARAFAC and a two-dimensional FTIR correlation analysis. The results were compared to the humic substances extracted from the Amazonian Anthrosol, as a model of anthropogenic organic matter. NMR analysis showed that humic-like extracts from hydrochar are mainly hydrophobic, while the soil has a greater contribution of polar moieties. The HLS and HS showed similar complexation capacities for Fe(III), Al(III) and Cu(II) assays. For Co(II) HLS exhibited larger affinities than HS. Two-dimensional correlation analysis FTIR showed that chemical groups may undergo conformational alteration with metal additions to achieve more stable arrangements (higher stability constant). Therefore, these results contribute more knowledge about the mechanism of HS and metal ion interaction, as well as showing that HTC can be an interesting option for HLS production, to be used as humic based materials. (C) 2020 Elsevier Ltd. All rights reserved.

@article{WOS:000540870300074, abstract = {Organic matter plays many roles in the soil ecosystem. One property of the substance concerns the metal complexation and interaction with organic contaminants. In this sense, the humic substances (HS), a heterogeneous mixture of compounds, naturally derived from degradation of biomass, have been widely studied in environmental sciences. Recent advances showed a new way to produce humic-like substances (HLS) through hydrothermal carbonization of biomass. Thus, this study aimed to evaluate the HLS of hydrochars, produced by using a mixture of sugarcane bagasse and vinasse with sulfuric acid added (1 and 4% v/v), and to assess their interactions with metal ions, (Fe(III), Al(III), Cu(II) and Co(II)) using EEM-PARAFAC and a two-dimensional FTIR correlation analysis. The results were compared to the humic substances extracted from the Amazonian Anthrosol, as a model of anthropogenic organic matter. NMR analysis showed that humic-like extracts from hydrochar are mainly hydrophobic, while the soil has a greater contribution of polar moieties. The HLS and HS showed similar complexation capacities for Fe(III), Al(III) and Cu(II) assays. For Co(II) HLS exhibited larger affinities than HS. Two-dimensional correlation analysis FTIR showed that chemical groups may undergo conformational alteration with metal additions to achieve more stable arrangements (higher stability constant). Therefore, these results contribute more knowledge about the mechanism of HS and metal ion interaction, as well as showing that HTC can be an interesting option for HLS production, to be used as humic based materials. (C) 2020 Elsevier Ltd. All rights reserved.}, added-at = {2022-05-23T20:00:14.000+0200}, address = {THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND}, author = {da Silva, Leila Soares and Constantino, Isabela Carreira and Bento, Lucas Raimundo and Tadini, Amanda Maria and Bisinoti, Marcia Cristina and Boscolo, Mauricio and Ferreira, Odair Pastor and Mounier, Stephane and Piccolo, Alessandro and Spaccini, Riccardo and Cornelio, Marinonio Lopes and Moreira, Altair Benedito}, biburl = {https://www.bibsonomy.org/bibtex/2c2f4d4487f53257c4679eb22a67eabb3/ppgfis_ufc_br}, doi = {10.1016/j.chemosphere.2020.127110}, interhash = {6f6a37c066e6d6ebe00beceab61978dc}, intrahash = {c2f4d4487f53257c4679eb22a67eabb3}, issn = {0045-6535}, journal = {CHEMOSPHERE}, keywords = {C-13-CPMAS-NMR; Complexation; Humic-like Nutrients} Soil carbonization; matter; organic substances; {Hydrothermal}, publisher = {PERGAMON-ELSEVIER SCIENCE LTD}, pubstate = {published}, timestamp = {2022-05-23T20:00:14.000+0200}, title = {Humic extracts from hydrochar and Amazonian Anthrosol: Molecular features and metal binding properties using EEM-PARAFAC and 2D FTIR correlation analyses}, tppubtype = {article}, volume = 256, year = 2020 }