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dc.contributor.author
Portela, Raquel
dc.contributor.author
Sánchez, Benigno
dc.contributor.author
Coronado, Juan M.
dc.contributor.author
Candal, Roberto Jorge
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dc.contributor.author
Suárez, Silvia Inés
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dc.date.available
2020-04-24T20:16:27Z
dc.date.issued
2007-11
dc.identifier.citation
Portela, Raquel; Sánchez, Benigno; Coronado, Juan M.; Candal, Roberto Jorge; Suárez, Silvia Inés; Selection of TiO2-support: UV-transparent alternatives and long-term use limitations for H2S removal; Elsevier Science; Catalysis Today; 129; 1-2; 11-2007; 223-230
dc.identifier.issn
0920-5861
dc.identifier.uri
http://hdl.handle.net/11336/103597
dc.description.abstract
Supported-TiO2 is commonly used for the photocatalytic treatment of gas streams. Nevertheless, selection of the best support is not a trivialtask. Cheap, lightweight and easily shaped polymeric materials which are transparent in the TiO2 activation range (poly(ethylene terephthalate) andcellulose acetate) were used as supports, as an alternative to borosilicate glass or opaque monoliths. The supports were coated with TiO2 solscontaining anatase particles. Different treatments were applied to the sols in order to improve particle crystallinity and wettability on plasticsurfaces. The resistance of the coated and uncoated supports against weathering and the photocatalytic activity for elimination of H2S frompolluted air were tested. Both supports were successfully coated with TiO2. PET supports displayed the higher photocatalytic activity, while TiO2caused the degradation of CA supports under UV illumination. The highest activity for H2S destruction was reached with 20% RH and increasingthe temperature of operation in the range of 33–50 8C resulted in higher conversion. Sulfate and SO2 were detected as byproducts, being thephotocatalytic activity reduced when sulfate accumulates on the surface. Different washing procedures for removing the sulfate from the supportedphotocatalysts were tested. A simple wash with distilled water was found to successfully recover most of the initial activity of the photocatalyst,although basic pH or higher temperatures accelerate sulfate removal.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Photocatalysis
dc.subject
H2S
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PET
dc.subject
Supported-TiO2
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Monolithic structures
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Polymers
dc.subject.classification
Química Inorgánica y Nuclear
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dc.subject.classification
Ciencias Químicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Selection of TiO2-support: UV-transparent alternatives and long-term use limitations for H2S removal
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2020-04-22T15:40:12Z
dc.journal.volume
129
dc.journal.number
1-2
dc.journal.pagination
223-230
dc.journal.pais
Países Bajos
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dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Portela, Raquel. Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas; España
dc.description.fil
Fil: Sánchez, Benigno. Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas; España
dc.description.fil
Fil: Coronado, Juan M.. Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas; España
dc.description.fil
Fil: Candal, Roberto Jorge. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; Argentina
dc.description.fil
Fil: Suárez, Silvia Inés. Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas; España
dc.journal.title
Catalysis Today
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0920586107005007
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.cattod.2007.08.005
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