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dc.contributor.author
Schlichter, Sofia
dc.contributor.author
Sapag, Manuel Karim
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Dennehy, Mariana
dc.contributor.author
Alvarez, Mariana
dc.date.available
2018-08-22T14:05:41Z
dc.date.issued
2017-10
dc.identifier.citation
Schlichter, Sofia; Sapag, Manuel Karim; Dennehy, Mariana; Alvarez, Mariana; Metal-based mesoporous materials and their application as catalysts for the degradation of methyl orange azo dye; Elsevier; Journal of Environmental Chemical Engineering; 5; 5; 10-2017; 5207-5214
dc.identifier.issn
2213-3437
dc.identifier.uri
http://hdl.handle.net/11336/56515
dc.description.abstract
Cobalt, manganese and copper heterogeneous catalysts were prepared using MCM-41 and SBA-16 mesoporous supports. The synthesized materials were characterized by X-ray diffraction, chemical analysis, N2 sorptometry, vibrational spectroscopy and transmission electron microscopy. Their catalytic activity was studied in the oxidative degradation of methyl orange (MO) in aqueous solution, at pH 6, using persulfate (PS) anion as oxidant at 30 °C. The level of degradation of the dye was monitored by UV-vis spectroscopy and Total Organic Carbon (TOC) analysis. The synthesized materials showed high activity, being the most effective catalysts those based on Co and Cu, achieving an efficient dye decolorization of >95% until 2 h of reaction. After 24 h of reaction a high degree of mineralization was achieved (>70%). Radical quenching studies showed that sulfate radicals are the main species formed by the catalyst/PS interaction. The supported catalysts exhibited stable performance during the reusability test, reaching an activity greater than 90% up to the fifth evaluated cycle of reuse for copper and cobalt based catalysts.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Cobalt
dc.subject
Copper
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Manganese
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Mesoporous Catalysts
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Methyl Orange
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Persulfate
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Otras Ciencias Químicas
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Ciencias Químicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Metal-based mesoporous materials and their application as catalysts for the degradation of methyl orange azo dye
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-08-21T13:04:16Z
dc.journal.volume
5
dc.journal.number
5
dc.journal.pagination
5207-5214
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Schlichter, Sofia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; Argentina
dc.description.fil
Fil: Sapag, Manuel Karim. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Física Aplicada "Dr. Jorge Andrés Zgrablich". Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales. Instituto de Física Aplicada "Dr. Jorge Andrés Zgrablich"; Argentina
dc.description.fil
Fil: Dennehy, Mariana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; Argentina
dc.description.fil
Fil: Alvarez, Mariana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; Argentina
dc.journal.title
Journal of Environmental Chemical Engineering
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S2213343717304773
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.jece.2017.09.039
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