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dc.contributor.author
Garcia, Jousy  
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González, Juan Carlos  
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Frascaroli, María Inés  
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García, Silvia Isabel  
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Blanes, Patricia Silvia  
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Correia, Isabel  
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Costa Pessoa, João  
dc.contributor.author
Sala, Luis Federico  
dc.date.available
2016-06-06T20:59:23Z  
dc.date.issued
2013-03  
dc.identifier.citation
Garcia, Jousy; González, Juan Carlos; Frascaroli, María Inés; García, Silvia Isabel; Blanes, Patricia Silvia; et al.; Spectroscopic studies of vanadium biosorption on different types of carbohydrate biomass; Canadian Science Publishing; Canadian Journal of Chemistry; 91; 3; 3-2013; 186-195  
dc.identifier.issn
0008-4042  
dc.identifier.uri
http://hdl.handle.net/11336/6057  
dc.description.abstract
The biosorption potential of different types of carbohydrate biomass is investigated to evaluate their application to purify water contaminated by vanadium in environmentally relevant oxidation states (VIV and VV). Spectroscopic studies were done by electron paramagnetic resonance (EPR), vanadium nuclear magnetic resonance (51V NMR), circular dichroism (CD), and electronic absorption in the visible range (vis). Both d-galacturonic and d-glucuronic acids are major components of plant cellular wall polysaccharides. The interaction of VIV with the model ligands d-galacturonic and d-glucuronic acids showed that complexation starts at low pH values (pH 3) and that carboxylate and sugar–OH groups, as well as water molecules, are involved in the coordination. At pH > 4.5, coordination promotes the sugar–OH deprotonation and new species form with the ligand chelating the metal ion via oxygen atoms of carboxylate and of adjacent sugar–O− donors. The studies with pectin and citric acid show the ability of both compounds to partially reduce VV to VIV in solution and the EPR parameters suggest coordination of carboxylate, sugar–OH, and water molecules. The interaction of VV with biomass from different sources shows that grapefruit, orange peel, and plane tree fruit are the most suitable candidates for the biosorption of vanadium. Studies with VV and grapefruit (or the grainless stalk of corn) indicate that the reduction takes place at the “surface” of the solid. EPR studies on the interaction of VIV with different carbohydrate biomass show their ability to complex high amounts of VIV. We propose that the biosorption mechanism, when the biomass is in contact with VV species, involves sorption, reduction, and retention at the surface level of VIV coordinated by oxygen donors of the biomass. When the interaction starts with VIV, the main process just involves the uptake of the metal ion at the surface level.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Canadian Science Publishing  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
Vanadium  
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Biosorption  
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Biomass  
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Electron Paramagnetic Resonance (Epr)  
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D-Glucuronic Acid  
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D-Galacturonic Acid  
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Físico-Química, Ciencia de los Polímeros, Electroquímica  
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Ciencias Químicas  
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CIENCIAS NATURALES Y EXACTAS  
dc.title
Spectroscopic studies of vanadium biosorption on different types of carbohydrate biomass  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2016-06-01T13:51:24Z  
dc.journal.volume
91  
dc.journal.number
3  
dc.journal.pagination
186-195  
dc.journal.pais
Canadá  
dc.journal.ciudad
Otawa  
dc.description.fil
Fil: Garcia, Jousy. Universidad Nacional de Rosario. Facultad de Cs.bioquimicas y Farmaceuticas. Departamento de Quimica y Fisica. Area Inorganica; Argentina  
dc.description.fil
Fil: González, Juan Carlos. Universidad Nacional de Rosario. Facultad de Cs.bioquimicas y Farmaceuticas. Departamento de Quimica y Fisica. Area Inorganica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Rosario. Instituto de Química Rosario; Argentina  
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Fil: Frascaroli, María Inés. Universidad Nacional de Rosario. Facultad de Cs.bioquimicas y Farmaceuticas. Departamento de Quimica y Fisica. Area Inorganica; Argentina  
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Fil: García, Silvia Isabel. Universidad Nacional de Rosario. Facultad de Cs.bioquimicas y Farmaceuticas. Departamento de Quimica y Fisica. Area Inorganica; Argentina  
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Fil: Blanes, Patricia Silvia. Universidad Nacional de Rosario. Facultad de Cs.bioquimicas y Farmaceuticas. Departamento de Quimica y Fisica. Area Inorganica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Rosario. Instituto de Química Rosario; Argentina  
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Fil: Correia, Isabel. Universidade Técnica de Lisboa. Instituto Superior Técnico. Centro de Química Estrutural; Portugal  
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Fil: Costa Pessoa, João. Universidade Técnica de Lisboa. Instituto Superior Técnico. Centro de Química Estrutural; Portugal  
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Fil: Sala, Luis Federico. Universidad Nacional de Rosario. Facultad de Cs.bioquimicas y Farmaceuticas. Departamento de Quimica y Fisica. Area Inorganica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Rosario. Instituto de Química Rosario; Argentina  
dc.journal.title
Canadian Journal of Chemistry  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1139/cjc-2012-0208  
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info:eu-repo/semantics/altIdentifier/url/http://www.nrcresearchpress.com/doi/abs/10.1139/cjc-2012-0208#.V1WB2vnhCJA  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/10.1139/cjc-2012-0208