Stability of polymeric membranes to UV exposure before and after coating with TiO2 nanoparticles

Detalhes bibliográficos
Autor(a) principal: Labuto, Geórgia
Data de Publicação: 2021
Outros Autores: Sanches, Sandra, Crespo, João G., Pereira, Vanessa J., Huertas, Rosa M.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10362/143792
Resumo: Acknowledgments: Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP, Nº 2019/ 04319-9), Associate Laboratory for Green Chemistry—LAQV, Unidade de Tecnologia de Células Animais do iBET e à Paula Alves, iNOVA4Health—UIDB/Multi/04462/2020, a program financially supported by Fundação para a Ciência e Tecnologia/Ministério da Educação e Ciência, through national funds is acknowledged. Funding from INTERFACE Program, through the Innovation, Technology and Circular Economy Fund (FITEC), is also gratefully acknowledged. Funding Information: Funding: Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP, Nº 2019/04319-9), Associate Laboratory for Green Chemistry—LAQV (through projects UIDB/50006/2020 and UIDP/ 50006/2020), Fundação para a Ciência e a Tecnologia through the project PTDC/EAM-AMB/30989/2017, Unidade de Tecnologia de Células Animais do iBET, iNOVA4Health—UIDB/Multi/04462/2020. Funding Information: Funda??o de Amparo ? Pesquisa do Estado de S?o Paulo (FAPESP, N? 2019/04319-9), Associate Laboratory for Green Chemistry?LAQV (through projects UIDB/50006/2020 and UIDP/ 50006/2020), Funda??o para a Ci?ncia e a Tecnologia through the project PTDC/EAM-AMB/30989/2017, Unidade de Tecnologia de C?lulas Animais do iBET, iNOVA4Health?UIDB/Multi/04462/2020. Publisher Copyright: © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
id RCAP_8b818bbdda46dc0ffd3ddc51c2e9a778
oai_identifier_str oai:run.unl.pt:10362/143792
network_acronym_str RCAP
network_name_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository_id_str 7160
spelling Stability of polymeric membranes to UV exposure before and after coating with TiO2 nanoparticlesHormone removalHybrid reactorMembrane stabilityTiO coatingUV photodegradationChemistry(all)Polymers and PlasticsAcknowledgments: Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP, Nº 2019/ 04319-9), Associate Laboratory for Green Chemistry—LAQV, Unidade de Tecnologia de Células Animais do iBET e à Paula Alves, iNOVA4Health—UIDB/Multi/04462/2020, a program financially supported by Fundação para a Ciência e Tecnologia/Ministério da Educação e Ciência, through national funds is acknowledged. Funding from INTERFACE Program, through the Innovation, Technology and Circular Economy Fund (FITEC), is also gratefully acknowledged. Funding Information: Funding: Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP, Nº 2019/04319-9), Associate Laboratory for Green Chemistry—LAQV (through projects UIDB/50006/2020 and UIDP/ 50006/2020), Fundação para a Ciência e a Tecnologia through the project PTDC/EAM-AMB/30989/2017, Unidade de Tecnologia de Células Animais do iBET, iNOVA4Health—UIDB/Multi/04462/2020. Funding Information: Funda??o de Amparo ? Pesquisa do Estado de S?o Paulo (FAPESP, N? 2019/04319-9), Associate Laboratory for Green Chemistry?LAQV (through projects UIDB/50006/2020 and UIDP/ 50006/2020), Funda??o para a Ci?ncia e a Tecnologia through the project PTDC/EAM-AMB/30989/2017, Unidade de Tecnologia de C?lulas Animais do iBET, iNOVA4Health?UIDB/Multi/04462/2020. Publisher Copyright: © 2021 by the authors. Licensee MDPI, Basel, Switzerland.The combination of photocatalysis and membrane filtration in a single reactor has been proposed, since the photocatalytic treatment may degrade the pollutants retained by the membrane and reduce fouling. However, polymeric membranes can be susceptible to degradation by UV radiation and free radicals. In the present study, five commercial polymeric membranes were exposed to ultraviolet (UV) radiation before and after applying a sol–gel coating with TiO2 nanoparticles. Membrane stability was characterized by changes in hydrophilicity as well as analysis of soluble substances and nanoparticles detached into the aqueous medium, and by Fourier transform infrared spectroscopy (FTIR), scanning electron microscope (SEM), and energy-dispersive X-ray spectrometry (EDS) for structural, morphological, and elemental distribution analysis, respectively. The TiO2 coating conferred photocatalytic properties to the membranes and protected them during 6 h of UV radiation exposures, reducing or eliminating chemical and morphological changes, and in some cases, improving their mechanical resistance. A selected commercial nanofiltration membrane was coated with TiO2 and used in a hybrid reactor with a low-pressure UV lamp, promoting photocatalysis coupled with cross-flow filtration in order to remove 17α-ethinylestradiol spiked into an aqueous matrix, achieving an efficiency close to 100% after 180 min of combined filtration and photocatalysis, and almost 80% after 90 min.LAQV@REQUIMTEDQ - Departamento de QuímicaInstituto de Tecnologia Química e Biológica António Xavier (ITQB)RUNLabuto, GeórgiaSanches, SandraCrespo, João G.Pereira, Vanessa J.Huertas, Rosa M.2022-09-16T22:27:05Z2021-12-302021-12-30T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article23application/pdfhttp://hdl.handle.net/10362/143792engPURE: 46578608https://doi.org/10.3390/polym14010124info: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:RCAAP2024-03-11T05:22:32Zoai:run.unl.pt:10362/143792Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:51:08.596845Repositório 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 Stability of polymeric membranes to UV exposure before and after coating with TiO2 nanoparticles
title Stability of polymeric membranes to UV exposure before and after coating with TiO2 nanoparticles
spellingShingle Stability of polymeric membranes to UV exposure before and after coating with TiO2 nanoparticles
Labuto, Geórgia
Hormone removal
Hybrid reactor
Membrane stability
TiO coating
UV photodegradation
Chemistry(all)
Polymers and Plastics
title_short Stability of polymeric membranes to UV exposure before and after coating with TiO2 nanoparticles
title_full Stability of polymeric membranes to UV exposure before and after coating with TiO2 nanoparticles
title_fullStr Stability of polymeric membranes to UV exposure before and after coating with TiO2 nanoparticles
title_full_unstemmed Stability of polymeric membranes to UV exposure before and after coating with TiO2 nanoparticles
title_sort Stability of polymeric membranes to UV exposure before and after coating with TiO2 nanoparticles
author Labuto, Geórgia
author_facet Labuto, Geórgia
Sanches, Sandra
Crespo, João G.
Pereira, Vanessa J.
Huertas, Rosa M.
author_role author
author2 Sanches, Sandra
Crespo, João G.
Pereira, Vanessa J.
Huertas, Rosa M.
author2_role author
author
author
author
dc.contributor.none.fl_str_mv LAQV@REQUIMTE
DQ - Departamento de Química
Instituto de Tecnologia Química e Biológica António Xavier (ITQB)
RUN
dc.contributor.author.fl_str_mv Labuto, Geórgia
Sanches, Sandra
Crespo, João G.
Pereira, Vanessa J.
Huertas, Rosa M.
dc.subject.por.fl_str_mv Hormone removal
Hybrid reactor
Membrane stability
TiO coating
UV photodegradation
Chemistry(all)
Polymers and Plastics
topic Hormone removal
Hybrid reactor
Membrane stability
TiO coating
UV photodegradation
Chemistry(all)
Polymers and Plastics
description Acknowledgments: Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP, Nº 2019/ 04319-9), Associate Laboratory for Green Chemistry—LAQV, Unidade de Tecnologia de Células Animais do iBET e à Paula Alves, iNOVA4Health—UIDB/Multi/04462/2020, a program financially supported by Fundação para a Ciência e Tecnologia/Ministério da Educação e Ciência, through national funds is acknowledged. Funding from INTERFACE Program, through the Innovation, Technology and Circular Economy Fund (FITEC), is also gratefully acknowledged. Funding Information: Funding: Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP, Nº 2019/04319-9), Associate Laboratory for Green Chemistry—LAQV (through projects UIDB/50006/2020 and UIDP/ 50006/2020), Fundação para a Ciência e a Tecnologia through the project PTDC/EAM-AMB/30989/2017, Unidade de Tecnologia de Células Animais do iBET, iNOVA4Health—UIDB/Multi/04462/2020. Funding Information: Funda??o de Amparo ? Pesquisa do Estado de S?o Paulo (FAPESP, N? 2019/04319-9), Associate Laboratory for Green Chemistry?LAQV (through projects UIDB/50006/2020 and UIDP/ 50006/2020), Funda??o para a Ci?ncia e a Tecnologia through the project PTDC/EAM-AMB/30989/2017, Unidade de Tecnologia de C?lulas Animais do iBET, iNOVA4Health?UIDB/Multi/04462/2020. Publisher Copyright: © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
publishDate 2021
dc.date.none.fl_str_mv 2021-12-30
2021-12-30T00:00:00Z
2022-09-16T22:27:05Z
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 http://hdl.handle.net/10362/143792
url http://hdl.handle.net/10362/143792
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv PURE: 46578608
https://doi.org/10.3390/polym14010124
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 23
application/pdf
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
_version_ 1799138106236993536

Registros relacionados