Photocatalytic degradation of diclofenac by hydroxyapatite-TiO2 composite material: Identification of transformation products and assessment of toxicity
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.14/25804 |
Resumo: | Diclofenac (DCF) is one of the most detected pharmaceuticals in environmental water matrices and is known to be recalcitrant to conventional wastewater treatment plants. In this study, degradation of DCF was performed in water by photolysis and photocatalysis using a new synthetized photocatalyst based on hydroxyapatite and TiO2 (HApTi). A degradation of 95% of the target compound was achieved in 24 h by a photocatalytic treatment employing the HApTi catalyst in comparison to only 60% removal by the photolytic process. The investigation of photo-transformation products was performed by means of UPLC-QTOF/MS/MS, and for 14 detected compounds in samples collected during treatment with HApTi, the chemical structure was proposed. The determination of transformation product (TP) toxicity was performed by using different assays: Daphnia magna acute toxicity test, Toxi-ChromoTest, and Lactuca sativa and Solanum lycopersicum germination inhibition test. Overall, the toxicity of the samples obtained from the photocatalytic experiment with HApTi decreased at the end of the treatment, showing the potential applicability of the catalyst for the removal of diclofenac and the detoxification of water matrices. |
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Photocatalytic degradation of diclofenac by hydroxyapatite-TiO2 composite material: Identification of transformation products and assessment of toxicityDiclofenacHydroxyapatitePhotocatalysisTransformation productsToxicityDiclofenac (DCF) is one of the most detected pharmaceuticals in environmental water matrices and is known to be recalcitrant to conventional wastewater treatment plants. In this study, degradation of DCF was performed in water by photolysis and photocatalysis using a new synthetized photocatalyst based on hydroxyapatite and TiO2 (HApTi). A degradation of 95% of the target compound was achieved in 24 h by a photocatalytic treatment employing the HApTi catalyst in comparison to only 60% removal by the photolytic process. The investigation of photo-transformation products was performed by means of UPLC-QTOF/MS/MS, and for 14 detected compounds in samples collected during treatment with HApTi, the chemical structure was proposed. The determination of transformation product (TP) toxicity was performed by using different assays: Daphnia magna acute toxicity test, Toxi-ChromoTest, and Lactuca sativa and Solanum lycopersicum germination inhibition test. Overall, the toxicity of the samples obtained from the photocatalytic experiment with HApTi decreased at the end of the treatment, showing the potential applicability of the catalyst for the removal of diclofenac and the detoxification of water matrices.MDPIVeritati - Repositório Institucional da Universidade Católica PortuguesaMurgolo, SapiaMoreira, Irina S.Piccirillo, ClaraCastro, Paula M. L.Ventrella, GianroccoCocozza, ClaudioMascolo, Giuseppe2018-10-22T11:43:09Z20182018-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.14/25804engMurgolo, S., Moreira, I.S., Piccirillo, C., Castro, P.M.L., Ventrella, G., Cocozza, C., Mascolo, G. (2018). Photocatalytic degradation of diclofenac by hydroxyapatite-TiO2 composite material: Identification of transformation products and assessment of toxicity. Materials, 11(9), art. n.º 17791996-194410.3390/ma1109177985053634407PMC616429930235831000446395200295info: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:RCAAP2024-09-06T12:22:53Zoai:repositorio.ucp.pt:10400.14/25804Portal AgregadorONGhttps://www.rcaap.pt/oai/openairemluisa.alvim@gmail.comopendoar:71602024-09-06T12:22:53Repositório 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 |
Photocatalytic degradation of diclofenac by hydroxyapatite-TiO2 composite material: Identification of transformation products and assessment of toxicity |
title |
Photocatalytic degradation of diclofenac by hydroxyapatite-TiO2 composite material: Identification of transformation products and assessment of toxicity |
spellingShingle |
Photocatalytic degradation of diclofenac by hydroxyapatite-TiO2 composite material: Identification of transformation products and assessment of toxicity Murgolo, Sapia Diclofenac Hydroxyapatite Photocatalysis Transformation products Toxicity |
title_short |
Photocatalytic degradation of diclofenac by hydroxyapatite-TiO2 composite material: Identification of transformation products and assessment of toxicity |
title_full |
Photocatalytic degradation of diclofenac by hydroxyapatite-TiO2 composite material: Identification of transformation products and assessment of toxicity |
title_fullStr |
Photocatalytic degradation of diclofenac by hydroxyapatite-TiO2 composite material: Identification of transformation products and assessment of toxicity |
title_full_unstemmed |
Photocatalytic degradation of diclofenac by hydroxyapatite-TiO2 composite material: Identification of transformation products and assessment of toxicity |
title_sort |
Photocatalytic degradation of diclofenac by hydroxyapatite-TiO2 composite material: Identification of transformation products and assessment of toxicity |
author |
Murgolo, Sapia |
author_facet |
Murgolo, Sapia Moreira, Irina S. Piccirillo, Clara Castro, Paula M. L. Ventrella, Gianrocco Cocozza, Claudio Mascolo, Giuseppe |
author_role |
author |
author2 |
Moreira, Irina S. Piccirillo, Clara Castro, Paula M. L. Ventrella, Gianrocco Cocozza, Claudio Mascolo, Giuseppe |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Veritati - Repositório Institucional da Universidade Católica Portuguesa |
dc.contributor.author.fl_str_mv |
Murgolo, Sapia Moreira, Irina S. Piccirillo, Clara Castro, Paula M. L. Ventrella, Gianrocco Cocozza, Claudio Mascolo, Giuseppe |
dc.subject.por.fl_str_mv |
Diclofenac Hydroxyapatite Photocatalysis Transformation products Toxicity |
topic |
Diclofenac Hydroxyapatite Photocatalysis Transformation products Toxicity |
description |
Diclofenac (DCF) is one of the most detected pharmaceuticals in environmental water matrices and is known to be recalcitrant to conventional wastewater treatment plants. In this study, degradation of DCF was performed in water by photolysis and photocatalysis using a new synthetized photocatalyst based on hydroxyapatite and TiO2 (HApTi). A degradation of 95% of the target compound was achieved in 24 h by a photocatalytic treatment employing the HApTi catalyst in comparison to only 60% removal by the photolytic process. The investigation of photo-transformation products was performed by means of UPLC-QTOF/MS/MS, and for 14 detected compounds in samples collected during treatment with HApTi, the chemical structure was proposed. The determination of transformation product (TP) toxicity was performed by using different assays: Daphnia magna acute toxicity test, Toxi-ChromoTest, and Lactuca sativa and Solanum lycopersicum germination inhibition test. Overall, the toxicity of the samples obtained from the photocatalytic experiment with HApTi decreased at the end of the treatment, showing the potential applicability of the catalyst for the removal of diclofenac and the detoxification of water matrices. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-10-22T11:43:09Z 2018 2018-01-01T00:00:00Z |
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 |
http://hdl.handle.net/10400.14/25804 |
url |
http://hdl.handle.net/10400.14/25804 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Murgolo, S., Moreira, I.S., Piccirillo, C., Castro, P.M.L., Ventrella, G., Cocozza, C., Mascolo, G. (2018). Photocatalytic degradation of diclofenac by hydroxyapatite-TiO2 composite material: Identification of transformation products and assessment of toxicity. Materials, 11(9), art. n.º 1779 1996-1944 10.3390/ma11091779 85053634407 PMC6164299 30235831 000446395200295 |
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 |
mluisa.alvim@gmail.com |
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1817546905726484480 |