PPCPs abatement using TiO2-based catalysts by photocatalytic oxidation and ozonation: the effect of nitrogen and cerium loads on the degradation performance and toxicity impact

Detalhes bibliográficos
Autor(a) principal: Domingues, Eva
Data de Publicação: 2023
Outros Autores: Jesus, Fátima, Alvim, Mariana, Cotas, Carla, Mazierski, Pawel, Pereira, Joana L., Gomes, João
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10773/37813
Resumo: Pharmaceutical and personal care products (PPCPs) have been consumed in great extension and most of these are found in water bodies, owing to the inefficiency of conventional wastewater treatments. To face against these recalcitrant contaminants, advanced oxidation processes such as photocatalysis and ozonation have been studied. Moreover, the combination of these technologies can improve the degradation of PPCPs, reducing the ozone consumption and the effluent toxicity with the presence of photocatalysts. In particular, this study aimed to evaluate the effects of different N and Ce loads in co-doping TiO2 catalysts on the efficiency of photocatalytic oxidation and photocatalytic ozonation for PPCPs abatement, as well as on the resultant toxicity to aquatic species. Different radiation sources (UVA and solar radiation) were considered for the photocatalytic oxidation. A mixture of 5 PPCPs: paracetamol, sulfamethoxazole, carbamazepine, methylparaben and propylparaben was used as a model synthetic effluent. Photocatalysis showed a low efficiency on the PPCPs removal (<20 %), which was not affected by the radiation source. In general, the tested catalysts showed no or low added-value for reducing the toxicity of the synthetic effluent. Concerning photocatalytic ozonation, the lowest N amount (2.5 % w/w) promoted the best results for PPCPs removal, achieving values up to 100 % with significant reduction of ozone dose compared to photolytic ozonation. In general, photocatalytic ozonation showed better ecotoxicological performance than single photocatalysis. Compared to single photolytic ozonation, a benefitial effect was observed for two aquatic species, using a specific catalyst. This catalyst, prepared by doping TiO2 with 2.5 % w/w N and 1.2 % w/w Ce, showed to be the most promisong one, with potential to be used in photocatalytic ozonation. Hence, this work highlights the potential role of N and Ce co-doped TiO2-based catalysts in photocatalytic ozonation for wastewater treatment.
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spelling PPCPs abatement using TiO2-based catalysts by photocatalytic oxidation and ozonation: the effect of nitrogen and cerium loads on the degradation performance and toxicity impactContaminants of emerging concernPhotocatalytic oxidationPhotocatalytic ozonationDoping TiO2EcotoxicityPharmaceutical and personal care products (PPCPs) have been consumed in great extension and most of these are found in water bodies, owing to the inefficiency of conventional wastewater treatments. To face against these recalcitrant contaminants, advanced oxidation processes such as photocatalysis and ozonation have been studied. Moreover, the combination of these technologies can improve the degradation of PPCPs, reducing the ozone consumption and the effluent toxicity with the presence of photocatalysts. In particular, this study aimed to evaluate the effects of different N and Ce loads in co-doping TiO2 catalysts on the efficiency of photocatalytic oxidation and photocatalytic ozonation for PPCPs abatement, as well as on the resultant toxicity to aquatic species. Different radiation sources (UVA and solar radiation) were considered for the photocatalytic oxidation. A mixture of 5 PPCPs: paracetamol, sulfamethoxazole, carbamazepine, methylparaben and propylparaben was used as a model synthetic effluent. Photocatalysis showed a low efficiency on the PPCPs removal (<20 %), which was not affected by the radiation source. In general, the tested catalysts showed no or low added-value for reducing the toxicity of the synthetic effluent. Concerning photocatalytic ozonation, the lowest N amount (2.5 % w/w) promoted the best results for PPCPs removal, achieving values up to 100 % with significant reduction of ozone dose compared to photolytic ozonation. In general, photocatalytic ozonation showed better ecotoxicological performance than single photocatalysis. Compared to single photolytic ozonation, a benefitial effect was observed for two aquatic species, using a specific catalyst. This catalyst, prepared by doping TiO2 with 2.5 % w/w N and 1.2 % w/w Ce, showed to be the most promisong one, with potential to be used in photocatalytic ozonation. Hence, this work highlights the potential role of N and Ce co-doped TiO2-based catalysts in photocatalytic ozonation for wastewater treatment.Elsevier2023-05-19T15:17:07Z2023-08-20T00:00:00Z2023-08-20info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10773/37813eng0048-969710.1016/j.scitotenv.2023.164000Domingues, EvaJesus, FátimaAlvim, MarianaCotas, CarlaMazierski, PawelPereira, Joana L.Gomes, Joãoinfo: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:RCAAP2024-05-06T04:46:23Zoai:ria.ua.pt:10773/37813Portal AgregadorONGhttps://www.rcaap.pt/oai/openairemluisa.alvim@gmail.comopendoar:71602024-05-06T04:46:23Repositório 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 PPCPs abatement using TiO2-based catalysts by photocatalytic oxidation and ozonation: the effect of nitrogen and cerium loads on the degradation performance and toxicity impact
title PPCPs abatement using TiO2-based catalysts by photocatalytic oxidation and ozonation: the effect of nitrogen and cerium loads on the degradation performance and toxicity impact
spellingShingle PPCPs abatement using TiO2-based catalysts by photocatalytic oxidation and ozonation: the effect of nitrogen and cerium loads on the degradation performance and toxicity impact
Domingues, Eva
Contaminants of emerging concern
Photocatalytic oxidation
Photocatalytic ozonation
Doping TiO2
Ecotoxicity
title_short PPCPs abatement using TiO2-based catalysts by photocatalytic oxidation and ozonation: the effect of nitrogen and cerium loads on the degradation performance and toxicity impact
title_full PPCPs abatement using TiO2-based catalysts by photocatalytic oxidation and ozonation: the effect of nitrogen and cerium loads on the degradation performance and toxicity impact
title_fullStr PPCPs abatement using TiO2-based catalysts by photocatalytic oxidation and ozonation: the effect of nitrogen and cerium loads on the degradation performance and toxicity impact
title_full_unstemmed PPCPs abatement using TiO2-based catalysts by photocatalytic oxidation and ozonation: the effect of nitrogen and cerium loads on the degradation performance and toxicity impact
title_sort PPCPs abatement using TiO2-based catalysts by photocatalytic oxidation and ozonation: the effect of nitrogen and cerium loads on the degradation performance and toxicity impact
author Domingues, Eva
author_facet Domingues, Eva
Jesus, Fátima
Alvim, Mariana
Cotas, Carla
Mazierski, Pawel
Pereira, Joana L.
Gomes, João
author_role author
author2 Jesus, Fátima
Alvim, Mariana
Cotas, Carla
Mazierski, Pawel
Pereira, Joana L.
Gomes, João
author2_role author
author
author
author
author
author
dc.contributor.author.fl_str_mv Domingues, Eva
Jesus, Fátima
Alvim, Mariana
Cotas, Carla
Mazierski, Pawel
Pereira, Joana L.
Gomes, João
dc.subject.por.fl_str_mv Contaminants of emerging concern
Photocatalytic oxidation
Photocatalytic ozonation
Doping TiO2
Ecotoxicity
topic Contaminants of emerging concern
Photocatalytic oxidation
Photocatalytic ozonation
Doping TiO2
Ecotoxicity
description Pharmaceutical and personal care products (PPCPs) have been consumed in great extension and most of these are found in water bodies, owing to the inefficiency of conventional wastewater treatments. To face against these recalcitrant contaminants, advanced oxidation processes such as photocatalysis and ozonation have been studied. Moreover, the combination of these technologies can improve the degradation of PPCPs, reducing the ozone consumption and the effluent toxicity with the presence of photocatalysts. In particular, this study aimed to evaluate the effects of different N and Ce loads in co-doping TiO2 catalysts on the efficiency of photocatalytic oxidation and photocatalytic ozonation for PPCPs abatement, as well as on the resultant toxicity to aquatic species. Different radiation sources (UVA and solar radiation) were considered for the photocatalytic oxidation. A mixture of 5 PPCPs: paracetamol, sulfamethoxazole, carbamazepine, methylparaben and propylparaben was used as a model synthetic effluent. Photocatalysis showed a low efficiency on the PPCPs removal (<20 %), which was not affected by the radiation source. In general, the tested catalysts showed no or low added-value for reducing the toxicity of the synthetic effluent. Concerning photocatalytic ozonation, the lowest N amount (2.5 % w/w) promoted the best results for PPCPs removal, achieving values up to 100 % with significant reduction of ozone dose compared to photolytic ozonation. In general, photocatalytic ozonation showed better ecotoxicological performance than single photocatalysis. Compared to single photolytic ozonation, a benefitial effect was observed for two aquatic species, using a specific catalyst. This catalyst, prepared by doping TiO2 with 2.5 % w/w N and 1.2 % w/w Ce, showed to be the most promisong one, with potential to be used in photocatalytic ozonation. Hence, this work highlights the potential role of N and Ce co-doped TiO2-based catalysts in photocatalytic ozonation for wastewater treatment.
publishDate 2023
dc.date.none.fl_str_mv 2023-05-19T15:17:07Z
2023-08-20T00:00:00Z
2023-08-20
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/10773/37813
url http://hdl.handle.net/10773/37813
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 0048-9697
10.1016/j.scitotenv.2023.164000
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 Elsevier
publisher.none.fl_str_mv Elsevier
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
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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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