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dc.contributor.author
Salomone, Vanesa Natalia
dc.contributor.author
Meichtry, Jorge Martin
dc.contributor.author
Litter, Marta Irene
dc.date.available
2018-03-08T21:59:00Z
dc.date.issued
2015-06
dc.identifier.citation
Salomone, Vanesa Natalia; Meichtry, Jorge Martin; Litter, Marta Irene; Heterogeneous photocatalytic removal of U(VI) in the presence of formic acid: U(III) formation; Elsevier Science Sa; Chemical Engineering Journal; 270; 6-2015; 28-35
dc.identifier.issn
1385-8947
dc.identifier.uri
http://hdl.handle.net/11336/38359
dc.description.abstract
The efficiency of TiO2 heterogeneous photocatalysis under UV-visible light for removal of uranyl (UO22+) (0.25mM, pH 3) in the presence of formic acid (HCOOH) was investigated. The effect of the counterion of the uranium salt (perchlorate and acetate-nitrate) and the use of quartz and glass photoreactors were analyzed. The transformation of U(VI) in the presence of HCOOH was significantly high and the best removal conditions have been established. The highest efficiency was observed for uranyl perchlorate in the quartz photoreactor with 0.001M HCOOH, while uranyl acetate yielded a lower removal. HCOOH concentrations >0.01M provoked uranium reoxidation. U(VI) photocatalytic transformation was also studied by direct spectrophotometry using TiO2 nanoparticles in the presence of 1M HCOOH at pH<2. U(V), U(IV) and U(III) were detected. U(III) formation was also apparent in the absence of the photocatalyst. This is the first time that formation of U(III) in a photochemical U(VI) system is reported.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science Sa
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Formic Acid
dc.subject
Heterogeneous Photocatalysis
dc.subject
U(Iii)
dc.subject
U(Vi)
dc.subject.classification
Otras Ciencias Químicas
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Ciencias Químicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Heterogeneous photocatalytic removal of U(VI) in the presence of formic acid: U(III) formation
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-03-08T19:06:27Z
dc.journal.volume
270
dc.journal.pagination
28-35
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Salomone, Vanesa Natalia. Comisión Nacional de Energía Atómica. Gerencia del Área de Seguridad Nuclear y Ambiente. Gerencia de Química (CAC); Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Meichtry, Jorge Martin. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Seguridad Nuclear y Ambiente. Gerencia de Química (CAC); Argentina
dc.description.fil
Fil: Litter, Marta Irene. Comisión Nacional de Energía Atómica. Gerencia del Área de Seguridad Nuclear y Ambiente. Gerencia de Química (CAC); Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de San Martín. Instituto de Investigación e Ingeniería Ambiental; Argentina
dc.journal.title
Chemical Engineering Journal
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.cej.2015.01.118
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S1385894715001552


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