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dc.contributor.author
Capilli, Gabriele
dc.contributor.author
Rodríguez Sartori, Damian
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Gonzalez, Monica Cristina
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Laurenti, Enzo
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Minero, Claudio
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Calza, Paola
dc.date.available
2024-03-26T13:52:04Z
dc.date.issued
2021-03
dc.identifier.citation
Capilli, Gabriele; Rodríguez Sartori, Damian; Gonzalez, Monica Cristina; Laurenti, Enzo; Minero, Claudio; et al.; Non-purified commercial multiwalled carbon nanotubes supported on electrospun polyacrylonitrile@polypyrrole nanofibers as photocatalysts for water decontamination; Royal Society of Chemistry; RSC Advances; 11; 17; 3-2021; 9911-9920
dc.identifier.issn
2046-2069
dc.identifier.uri
http://hdl.handle.net/11336/231564
dc.description.abstract
We present a photoactive composite material for water decontamination consisting of non-purified commercial multiwalled carbon nanotubes (CNT(NP)s) supported onto an electrospun polymeric mat made of core-sheath polyacrylonitrile-polypyrrole nanofibers. This is the first system that specifically exploits the superior photocatalytic activity of CNT(NP)s compared with purified carbon nanotubes, usually employed. A CNT(NP) still contains the catalytic metal oxide nanoparticles (NPs) used for its synthesis, embedded in the nanotube structure. Under UV-Visible irradiation, these NP generate highly reactive ?OH radicals capable of degrading the organic molecules adsorbed on the nanotube. Photocatalytic tests on the composite material show that CNT(NP)s act mostly as a source of photogenerated charge carriers. The adsorption of target substrates occurs preferentially onto the polypyrrole sheath, which shuttles the reactive carriers from CNT(NP)s to the substrates. In addition, UV-Visible irradiation of semiconducting polypyrrole generates radical species that directly react with the adsorbed substrates. All synthetic procedures reported are scalable and sustainable. This mechanically resistant and flexible composite overcomes one of the weakest aspects of water treatments that employ suspended nanocatalysts, namely the expensive and poorly scalable recovery of the catalyst through nanofiltration. All these features are required for large-scale photocatalytic treatments of polluted water.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Royal Society of Chemistry
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc/2.5/ar/
dc.subject
commercial CNT
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nanofibers
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photocatalysts
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polypyrrole
dc.subject.classification
Físico-Química, Ciencia de los Polímeros, Electroquímica
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dc.subject.classification
Ciencias Químicas
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CIENCIAS NATURALES Y EXACTAS
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dc.title
Non-purified commercial multiwalled carbon nanotubes supported on electrospun polyacrylonitrile@polypyrrole nanofibers as photocatalysts for water decontamination
dc.type
info:eu-repo/semantics/article
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info:ar-repo/semantics/artículo
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info:eu-repo/semantics/publishedVersion
dc.date.updated
2022-09-20T10:54:41Z
dc.journal.volume
11
dc.journal.number
17
dc.journal.pagination
9911-9920
dc.journal.pais
Reino Unido
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dc.description.fil
Fil: Capilli, Gabriele. Università di Torino; Italia
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Fil: Rodríguez Sartori, Damian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
dc.description.fil
Fil: Gonzalez, Monica Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
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Fil: Laurenti, Enzo. Università di Torino; Italia
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Fil: Minero, Claudio. Università di Torino; Italia
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Fil: Calza, Paola. Università di Torino; Italia
dc.journal.title
RSC Advances
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1039/d0ra10930d
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