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http://hdl.handle.net/10261/190140
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Campo DC | Valor | Lengua/Idioma |
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dc.contributor.author | Mendoza, C. | - |
dc.contributor.author | Valle, A. | - |
dc.contributor.author | Castellote, Marta | - |
dc.contributor.author | Bahamonde, A. | - |
dc.contributor.author | Faraldos, Marisol | - |
dc.date.accessioned | 2019-09-06T12:22:04Z | - |
dc.date.available | 2019-09-06T12:22:04Z | - |
dc.date.issued | 2015-11 | - |
dc.identifier.citation | Applied Catalysis B: Environmental 178: 155-164 (2015) | - |
dc.identifier.issn | 0926-3373 | - |
dc.identifier.uri | http://hdl.handle.net/10261/190140 | - |
dc.description.abstract | An increasingly known application of nanomaterials in the construction industry is related to the photoactivity ability of semiconductors, where nano-anatase TiO2 is perhaps the most well-known photocatalytic semiconductor and one which possesses a strong oxidizing capability. To analyze the photo-efficiency of four TiO2 coatings and the effect of SiO2 interlayer on the mechanic and photocatalytic activity in Rhodamine B (RhB) and NOx photodegradation, two photocatalytic cement series have been prepared. First, cement mortar was coated with three commercial TiO2 suspensions (GG1, GC7 and CG13) and a home-made titania sol–gel (TEA), and secondly an insertion of a SiO2 layer was applied on cement surface before spraying the TiO2 layer. All studied TiO2-cements exhibited a significant RhB and NOx photodegradation, arising almost total RhB molar conversions, and upper 53% for NOx photo-oxidation respectively. Nevertheless, although SiO2 layer deposited in between mortar and TiO2-cement did not stabilize the commercial TiO2 coatings, a good adhesion was observed when silica was applied joint to the home-made titania gel (TEA), probably as a consequence of the interactions encountered between SiO2 and TiO2 gels. CG7-Si-Cem exhibited high rate at shorter irradiation times, but TEA-Cem and TEA-Si-Cem can be considered as very interesting and potential photocatalytic mortars due to useful mechanical properties, with a very good coatings adhesion that provides promising outdoor use, and good photo-efficiencies in RhB and NOx photo-oxidation. | - |
dc.description.sponsorship | This work has been supported by the Spanish Plan National I+D+I through the project CTM2010-14883/TECNO. | - |
dc.publisher | Elsevier | - |
dc.rights | closedAccess | - |
dc.subject | SiO2 | - |
dc.subject | RhB | - |
dc.subject | TiO2 | - |
dc.subject | Photocatalysis | - |
dc.subject | NOx | - |
dc.title | TiO2 and TiO2–SiO2 coated cement: Comparison of mechanic and photocatalytic properties | - |
dc.type | artículo | - |
dc.identifier.doi | 10.1016/j.apcatb.2014.09.079 | - |
dc.relation.publisherversion | https://doi.org/10.1016/j.apcatb.2014.09.079 | - |
dc.date.updated | 2019-09-06T12:22:04Z | - |
dc.description.version | Peer Reviewed | - |
dc.language.rfc3066 | eng | - |
dc.contributor.funder | Ministerio de Ciencia e Innovación (España) | - |
dc.relation.csic | Sí | - |
dc.identifier.funder | http://dx.doi.org/10.13039/501100004837 | es_ES |
dc.type.coar | http://purl.org/coar/resource_type/c_6501 | es_ES |
item.openairetype | artículo | - |
item.fulltext | No Fulltext | - |
item.grantfulltext | none | - |
item.cerifentitytype | Publications | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
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