Development of photocatalytic 3D-Printed cementitious mortars: influence of the curing, spraying time gaps and TiO2 coating rates

Detalhes bibliográficos
Autor(a) principal: Zahabizadeh, Behzad
Data de Publicação: 2021
Outros Autores: Rocha Segundo, Iran, Pereira, João, Freitas, Elisabete, Camões, Aires, Tavares, Carlos J., Teixeira, Vasco M. P., Cunha, Vítor M.C.F., Costa, Manuel F.M., Carneiro, Joaquim A. O.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: https://hdl.handle.net/1822/74238
Resumo: This work evaluated the photocatalytic activity of 3D-printed cementitious mortar specimens functionalized with TiO2 nanoparticles to obtain a multifunctional and smart concrete. This research aims to assess the influence of different parameters related to the functionalization process such as adsorption, coating time gaps, and coating rates on the degradation efficiency of the functionalized cementitious specimens. Each specimen was evaluated under the degradation of Rhodamine B (RhB) in an aqueous solution using a sun-light simulation. The obtained results showed a decrease in adsorption (under dark condition) with increasing the sample curing age. The highest photocatalytic efficiency was observed for coated samples aged 7 days. By increasing the coating rates, the photocatalytic efficiency is enhanced. Nonetheless, regardless of the coating rates, all the specimens showed an increase in photocatalytic efficiency for longer time periods of light exposition, i.e., after 8 h of irradiation
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spelling Development of photocatalytic 3D-Printed cementitious mortars: influence of the curing, spraying time gaps and TiO2 coating rates3D concrete printingTiO2 nanoparticlesSurface coatingFunctionalized cementitious materialsSmart mortarPhotocatalytic mortarTiO nanoparticles 2Engenharia e Tecnologia::Engenharia CivilScience & TechnologyIndústria, inovação e infraestruturasThis work evaluated the photocatalytic activity of 3D-printed cementitious mortar specimens functionalized with TiO2 nanoparticles to obtain a multifunctional and smart concrete. This research aims to assess the influence of different parameters related to the functionalization process such as adsorption, coating time gaps, and coating rates on the degradation efficiency of the functionalized cementitious specimens. Each specimen was evaluated under the degradation of Rhodamine B (RhB) in an aqueous solution using a sun-light simulation. The obtained results showed a decrease in adsorption (under dark condition) with increasing the sample curing age. The highest photocatalytic efficiency was observed for coated samples aged 7 days. By increasing the coating rates, the photocatalytic efficiency is enhanced. Nonetheless, regardless of the coating rates, all the specimens showed an increase in photocatalytic efficiency for longer time periods of light exposition, i.e., after 8 h of irradiationThis work was partly financed by FCT/MCTES through national funds (PIDDAC) under the R&D Unit Institute for Sustainability and Innovation in Structural Engineering (ISISE), under reference UIDB/04029/2020. The authors acknowledge the support of the DST group construction company for funding the project Chair dst/IB-S: Smart Systems for Construction. The first two authors would like to acknowledge the PhD grants SFRH/BD/143636/2019 and SFRH/BD/137421/2018 provided by the Portuguese Foundation for Science and Technology (FCT). Additionally, the authors would like to acknowledge FCT for the financing this research work by the project NanoAir PTDC/FIS-MAC/6606/2020 and the Strategic Fundings UIDB/04650/2020-2023 and UIDB/04029/2020MDPIUniversidade do MinhoZahabizadeh, BehzadRocha Segundo, IranPereira, JoãoFreitas, ElisabeteCamões, AiresTavares, Carlos J.Teixeira, Vasco M. P.Cunha, Vítor M.C.F.Costa, Manuel F.M.Carneiro, Joaquim A. O.2021-082021-08-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/1822/74238engZahabizadeh, B., Segundo, I. R., Pereira, J., Freitas, E., Camões, A., Tavares, C. J., ... & Carneiro, J. O. (2021). Development of Photocatalytic 3D-Printed Cementitious Mortars: Influence of the Curing, Spraying Time Gaps and TiO2 Coating Rates. Buildings, 11(9), 3812075-530910.3390/buildings11090381https://www.mdpi.com/2075-5309/11/9/381info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-12-30T01:22:32Zoai:repositorium.sdum.uminho.pt:1822/74238Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T18:45:47.247059Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Development of photocatalytic 3D-Printed cementitious mortars: influence of the curing, spraying time gaps and TiO2 coating rates
title Development of photocatalytic 3D-Printed cementitious mortars: influence of the curing, spraying time gaps and TiO2 coating rates
spellingShingle Development of photocatalytic 3D-Printed cementitious mortars: influence of the curing, spraying time gaps and TiO2 coating rates
Zahabizadeh, Behzad
3D concrete printing
TiO2 nanoparticles
Surface coating
Functionalized cementitious materials
Smart mortar
Photocatalytic mortar
TiO nanoparticles 2
Engenharia e Tecnologia::Engenharia Civil
Science & Technology
Indústria, inovação e infraestruturas
title_short Development of photocatalytic 3D-Printed cementitious mortars: influence of the curing, spraying time gaps and TiO2 coating rates
title_full Development of photocatalytic 3D-Printed cementitious mortars: influence of the curing, spraying time gaps and TiO2 coating rates
title_fullStr Development of photocatalytic 3D-Printed cementitious mortars: influence of the curing, spraying time gaps and TiO2 coating rates
title_full_unstemmed Development of photocatalytic 3D-Printed cementitious mortars: influence of the curing, spraying time gaps and TiO2 coating rates
title_sort Development of photocatalytic 3D-Printed cementitious mortars: influence of the curing, spraying time gaps and TiO2 coating rates
author Zahabizadeh, Behzad
author_facet Zahabizadeh, Behzad
Rocha Segundo, Iran
Pereira, João
Freitas, Elisabete
Camões, Aires
Tavares, Carlos J.
Teixeira, Vasco M. P.
Cunha, Vítor M.C.F.
Costa, Manuel F.M.
Carneiro, Joaquim A. O.
author_role author
author2 Rocha Segundo, Iran
Pereira, João
Freitas, Elisabete
Camões, Aires
Tavares, Carlos J.
Teixeira, Vasco M. P.
Cunha, Vítor M.C.F.
Costa, Manuel F.M.
Carneiro, Joaquim A. O.
author2_role author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Zahabizadeh, Behzad
Rocha Segundo, Iran
Pereira, João
Freitas, Elisabete
Camões, Aires
Tavares, Carlos J.
Teixeira, Vasco M. P.
Cunha, Vítor M.C.F.
Costa, Manuel F.M.
Carneiro, Joaquim A. O.
dc.subject.por.fl_str_mv 3D concrete printing
TiO2 nanoparticles
Surface coating
Functionalized cementitious materials
Smart mortar
Photocatalytic mortar
TiO nanoparticles 2
Engenharia e Tecnologia::Engenharia Civil
Science & Technology
Indústria, inovação e infraestruturas
topic 3D concrete printing
TiO2 nanoparticles
Surface coating
Functionalized cementitious materials
Smart mortar
Photocatalytic mortar
TiO nanoparticles 2
Engenharia e Tecnologia::Engenharia Civil
Science & Technology
Indústria, inovação e infraestruturas
description This work evaluated the photocatalytic activity of 3D-printed cementitious mortar specimens functionalized with TiO2 nanoparticles to obtain a multifunctional and smart concrete. This research aims to assess the influence of different parameters related to the functionalization process such as adsorption, coating time gaps, and coating rates on the degradation efficiency of the functionalized cementitious specimens. Each specimen was evaluated under the degradation of Rhodamine B (RhB) in an aqueous solution using a sun-light simulation. The obtained results showed a decrease in adsorption (under dark condition) with increasing the sample curing age. The highest photocatalytic efficiency was observed for coated samples aged 7 days. By increasing the coating rates, the photocatalytic efficiency is enhanced. Nonetheless, regardless of the coating rates, all the specimens showed an increase in photocatalytic efficiency for longer time periods of light exposition, i.e., after 8 h of irradiation
publishDate 2021
dc.date.none.fl_str_mv 2021-08
2021-08-01T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://hdl.handle.net/1822/74238
url https://hdl.handle.net/1822/74238
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Zahabizadeh, B., Segundo, I. R., Pereira, J., Freitas, E., Camões, A., Tavares, C. J., ... & Carneiro, J. O. (2021). Development of Photocatalytic 3D-Printed Cementitious Mortars: Influence of the Curing, Spraying Time Gaps and TiO2 Coating Rates. Buildings, 11(9), 381
2075-5309
10.3390/buildings11090381
https://www.mdpi.com/2075-5309/11/9/381
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
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