Application of Novel Fulvic Acid-Coated Magnetite Nanoparticles for CO<SUB>2</SUB>−-Mediated Photoreduction of Cr(VI)
- Autores
- Arce, Valeria Beatriz; Mucci, Carla Romina; Fernández Solarte, Alejandra María; Torres Sánchez, Rosa María; Mártire, Daniel Osvaldo
- Año de publicación
- 2018
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- We here isolate fulvic acids from vermicompost to prepare and characterize novel fulvic acid-coated magnetite nanoparticles. UV-A irradiation of suspensions of the nanoparticles under different experimental conditions led to photoreduction of Cr(VI). In anoxic conditions in the presence of formic acid, after 60 min of irradiation ca. 100% of Cr(VI) was reduced. Under these conditions, the carbon dioxide radical anions, CO2 .-, mediated the photo-reduction of Cr(VI). However, the high reduction potential of Cr(VI) and the variety of reactive species generated upon UV-A irradiation make this nanomaterial also suitable for Cr(VI) photo-reduction also under aerobic conditions in the presence of formic acid or under anoxic conditions without the addition of formic acid. The possible photodegradation routes involved are discussed in detail.
Centro de Investigaciones Ópticas
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
Centro de Tecnología de Recursos Minerales y Cerámica - Materia
-
Química
Fulvic acids
Magnetic nanoparticles
Photo-reduction
Cr(VI) - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by/4.0/
- Repositorio
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- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/113794
Ver los metadatos del registro completo
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Application of Novel Fulvic Acid-Coated Magnetite Nanoparticles for CO<SUB>2</SUB>−-Mediated Photoreduction of Cr(VI)Arce, Valeria BeatrizMucci, Carla RominaFernández Solarte, Alejandra MaríaTorres Sánchez, Rosa MaríaMártire, Daniel OsvaldoQuímicaFulvic acidsMagnetic nanoparticlesPhoto-reductionCr(VI)We here isolate fulvic acids from vermicompost to prepare and characterize novel fulvic acid-coated magnetite nanoparticles. UV-A irradiation of suspensions of the nanoparticles under different experimental conditions led to photoreduction of Cr(VI). In anoxic conditions in the presence of formic acid, after 60 min of irradiation ca. 100% of Cr(VI) was reduced. Under these conditions, the carbon dioxide radical anions, CO2 .-, mediated the photo-reduction of Cr(VI). However, the high reduction potential of Cr(VI) and the variety of reactive species generated upon UV-A irradiation make this nanomaterial also suitable for Cr(VI) photo-reduction also under aerobic conditions in the presence of formic acid or under anoxic conditions without the addition of formic acid. The possible photodegradation routes involved are discussed in detail.Centro de Investigaciones ÓpticasInstituto de Investigaciones Fisicoquímicas Teóricas y AplicadasCentro de Tecnología de Recursos Minerales y Cerámica2018info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/113794enginfo:eu-repo/semantics/altIdentifier/issn/1573-2932info:eu-repo/semantics/altIdentifier/doi/10.1007/s11270-018-3693-5info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-15T11:18:19Zoai:sedici.unlp.edu.ar:10915/113794Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-15 11:18:19.604SEDICI (UNLP) - Universidad Nacional de La Platafalse |
| dc.title.none.fl_str_mv |
Application of Novel Fulvic Acid-Coated Magnetite Nanoparticles for CO<SUB>2</SUB>−-Mediated Photoreduction of Cr(VI) |
| title |
Application of Novel Fulvic Acid-Coated Magnetite Nanoparticles for CO<SUB>2</SUB>−-Mediated Photoreduction of Cr(VI) |
| spellingShingle |
Application of Novel Fulvic Acid-Coated Magnetite Nanoparticles for CO<SUB>2</SUB>−-Mediated Photoreduction of Cr(VI) Arce, Valeria Beatriz Química Fulvic acids Magnetic nanoparticles Photo-reduction Cr(VI) |
| title_short |
Application of Novel Fulvic Acid-Coated Magnetite Nanoparticles for CO<SUB>2</SUB>−-Mediated Photoreduction of Cr(VI) |
| title_full |
Application of Novel Fulvic Acid-Coated Magnetite Nanoparticles for CO<SUB>2</SUB>−-Mediated Photoreduction of Cr(VI) |
| title_fullStr |
Application of Novel Fulvic Acid-Coated Magnetite Nanoparticles for CO<SUB>2</SUB>−-Mediated Photoreduction of Cr(VI) |
| title_full_unstemmed |
Application of Novel Fulvic Acid-Coated Magnetite Nanoparticles for CO<SUB>2</SUB>−-Mediated Photoreduction of Cr(VI) |
| title_sort |
Application of Novel Fulvic Acid-Coated Magnetite Nanoparticles for CO<SUB>2</SUB>−-Mediated Photoreduction of Cr(VI) |
| dc.creator.none.fl_str_mv |
Arce, Valeria Beatriz Mucci, Carla Romina Fernández Solarte, Alejandra María Torres Sánchez, Rosa María Mártire, Daniel Osvaldo |
| author |
Arce, Valeria Beatriz |
| author_facet |
Arce, Valeria Beatriz Mucci, Carla Romina Fernández Solarte, Alejandra María Torres Sánchez, Rosa María Mártire, Daniel Osvaldo |
| author_role |
author |
| author2 |
Mucci, Carla Romina Fernández Solarte, Alejandra María Torres Sánchez, Rosa María Mártire, Daniel Osvaldo |
| author2_role |
author author author author |
| dc.subject.none.fl_str_mv |
Química Fulvic acids Magnetic nanoparticles Photo-reduction Cr(VI) |
| topic |
Química Fulvic acids Magnetic nanoparticles Photo-reduction Cr(VI) |
| dc.description.none.fl_txt_mv |
We here isolate fulvic acids from vermicompost to prepare and characterize novel fulvic acid-coated magnetite nanoparticles. UV-A irradiation of suspensions of the nanoparticles under different experimental conditions led to photoreduction of Cr(VI). In anoxic conditions in the presence of formic acid, after 60 min of irradiation ca. 100% of Cr(VI) was reduced. Under these conditions, the carbon dioxide radical anions, CO2 .-, mediated the photo-reduction of Cr(VI). However, the high reduction potential of Cr(VI) and the variety of reactive species generated upon UV-A irradiation make this nanomaterial also suitable for Cr(VI) photo-reduction also under aerobic conditions in the presence of formic acid or under anoxic conditions without the addition of formic acid. The possible photodegradation routes involved are discussed in detail. Centro de Investigaciones Ópticas Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas Centro de Tecnología de Recursos Minerales y Cerámica |
| description |
We here isolate fulvic acids from vermicompost to prepare and characterize novel fulvic acid-coated magnetite nanoparticles. UV-A irradiation of suspensions of the nanoparticles under different experimental conditions led to photoreduction of Cr(VI). In anoxic conditions in the presence of formic acid, after 60 min of irradiation ca. 100% of Cr(VI) was reduced. Under these conditions, the carbon dioxide radical anions, CO2 .-, mediated the photo-reduction of Cr(VI). However, the high reduction potential of Cr(VI) and the variety of reactive species generated upon UV-A irradiation make this nanomaterial also suitable for Cr(VI) photo-reduction also under aerobic conditions in the presence of formic acid or under anoxic conditions without the addition of formic acid. The possible photodegradation routes involved are discussed in detail. |
| publishDate |
2018 |
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2018 |
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article |
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http://sedici.unlp.edu.ar/handle/10915/113794 |
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eng |
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eng |
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