Highly reduced ecotoxicity of ZnO-based micro/nanostructures on aquatic biota
Developing efficient sunlight photocatalysts with enhanced photocorrosion resistance and minimal ecotoxicological effects on aquatic biota is critical to combat water contamination. Here, the role of chemical composition, architecture, and fixation on the ecotoxicological effects on microalgae of di...
| Autores: | , , , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Fecha de publicación: | 2020 |
| País: | España |
| Institución: | Universitat Autònoma de Barcelona |
| Repositorio: | Dipòsit Digital de Documents de la UAB |
| Idioma: | inglés |
| OAI Identifier: | oai:ddd.uab.cat:233977 |
| Acceso en línea: | https://ddd.uab.cat/record/233977 https://dx.doi.org/urn:doi:10.1016/j.watres.2019.115210 |
| Access Level: | acceso abierto |
| Palabra clave: | Ecotoxicity ZnO-Based photocatalysts Sunlight photocatalysis Microalgae Persistent organic pollutants |
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Highly reduced ecotoxicity of ZnO-based micro/nanostructures on aquatic biotainfluence of architecture, chemical composition, fixation, and photocatalytic efficiencySerrà, Albert|||0000-0003-0147-3400Zhang, Yue|||0000-0001-7106-363XSepúlveda, Borja|||0000-0002-1562-7602Gomez, Elvira|||0000-0002-9223-6357Nogués, Josep|||0000-0003-4616-1371Michler, Johann|||0000-0001-8860-4068Philippe, Laetitia|||0000-0003-0928-4487EcotoxicityZnO-Based photocatalystsSunlight photocatalysisMicroalgaePersistent organic pollutantsDeveloping efficient sunlight photocatalysts with enhanced photocorrosion resistance and minimal ecotoxicological effects on aquatic biota is critical to combat water contamination. Here, the role of chemical composition, architecture, and fixation on the ecotoxicological effects on microalgae of different ZnO and ZnO@ZnS based water decontamination photocatalysts was analyzed in depth. In particular, the ecotoxicological effects of films, nanoparticles and biomimetic micro/nano-ferns were carefully assessed by correlating the algae's viability to the Zn(II) release, the photocatalyst-microalgae interaction, and the production of reactive oxygen species (ROS). The results showed a drastic improvement in algal viability for supported ZnO@ZnS core@shell micro/nanoferns, as their ecotoxicity after 96 h light exposure was significantly lower (3.7-10.0% viability loss) compared to the ZnO films (18.4-35.5% loss), ZnO micro/nanoferns (28.5-53.5% loss), ZnO nanoparticles (48.3-91.7% loss) or ZnO@ZnS nanoparticles (8.6-19.2% loss) for catalysts concentrations ranging from 25 mgL¯¹ to 400 mgL¯¹. In particular, the ZnO@ZnS micro/nanoferns with a concentration of 400 mg L exhibited excellent photocatalytic efficiency to mineralize a multi-pollutant solution (81.4 ± 0.3% mineralization efficiency after 210 min under UV-filtered visible light irradiation) and minimal photocorrosion (<5% of photocatalyst dissolution after 96 h of UV-filtered visible light irradiation). Remarkably, the ZnO@ZnS micro/nanoferns showed lower loss of algal viability (9.8 ± 1.1%) after 96 h of light exposure, with minimal reduction in microalgal biomass (9.1 ± 1.0%), as well as in the quantity of chlorophyll-a (9.5 ± 1.0%), carotenoids (8.6 ± 0.9%) and phycocyanin (5.6 ± 0.6%). Altogether, the optimized ZnO@ZnS core@shell micro/nanoferns represent excellent ecofriendly photocatalysts for water remediation in complex media, as they combine enhanced sunlight remediation efficiency, minimal adverse effects on biological microorganisms, high reusability and easy recyclability. 22020-01-0120202020-01-01Articlehttp://purl.org/coar/resource_type/c_6501SMURhttp://purl.org/coar/version/c_71e4c1898caa6e32info:eu-repo/semantics/articleapplication/pdfhttps://ddd.uab.cat/record/233977https://dx.doi.org/urn:doi:10.1016/j.watres.2019.115210reponame:Dipòsit Digital de Documents de la UABinstname:Universitat Autònoma de BarcelonaInglésengEuropean Commission https://doi.org/10.13039/501100000780 754364Agència de Gestió d'Ajuts Universitaris i de Recerca https://doi.org/10.13039/501100003030 2017/SGR-292Ministerio de Economía y Competitividad https://doi.org/10.13039/501100003329 PCIN2016-093Agencia Estatal de Investigación https://doi.org/10.13039/501100011033 TEC2017-85059-C3-2-RMinisterio de Economía y Competitividad https://doi.org/10.13039/501100003329 SEV-2017-0706open accesshttp://purl.org/coar/access_right/c_abf2Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, i la comunicació pública de l'obra, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. No es permet la creació d'obres derivades.https://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:ddd.uab.cat:2339772026-06-06T12:50:31Z |
| dc.title.none.fl_str_mv |
Highly reduced ecotoxicity of ZnO-based micro/nanostructures on aquatic biota influence of architecture, chemical composition, fixation, and photocatalytic efficiency |
| title |
Highly reduced ecotoxicity of ZnO-based micro/nanostructures on aquatic biota |
| spellingShingle |
Highly reduced ecotoxicity of ZnO-based micro/nanostructures on aquatic biota Serrà, Albert|||0000-0003-0147-3400 Ecotoxicity ZnO-Based photocatalysts Sunlight photocatalysis Microalgae Persistent organic pollutants |
| title_short |
Highly reduced ecotoxicity of ZnO-based micro/nanostructures on aquatic biota |
| title_full |
Highly reduced ecotoxicity of ZnO-based micro/nanostructures on aquatic biota |
| title_fullStr |
Highly reduced ecotoxicity of ZnO-based micro/nanostructures on aquatic biota |
| title_full_unstemmed |
Highly reduced ecotoxicity of ZnO-based micro/nanostructures on aquatic biota |
| title_sort |
Highly reduced ecotoxicity of ZnO-based micro/nanostructures on aquatic biota |
| dc.creator.none.fl_str_mv |
Serrà, Albert|||0000-0003-0147-3400 Zhang, Yue|||0000-0001-7106-363X Sepúlveda, Borja|||0000-0002-1562-7602 Gomez, Elvira|||0000-0002-9223-6357 Nogués, Josep|||0000-0003-4616-1371 Michler, Johann|||0000-0001-8860-4068 Philippe, Laetitia|||0000-0003-0928-4487 |
| author |
Serrà, Albert|||0000-0003-0147-3400 |
| author_facet |
Serrà, Albert|||0000-0003-0147-3400 Zhang, Yue|||0000-0001-7106-363X Sepúlveda, Borja|||0000-0002-1562-7602 Gomez, Elvira|||0000-0002-9223-6357 Nogués, Josep|||0000-0003-4616-1371 Michler, Johann|||0000-0001-8860-4068 Philippe, Laetitia|||0000-0003-0928-4487 |
| author_role |
author |
| author2 |
Zhang, Yue|||0000-0001-7106-363X Sepúlveda, Borja|||0000-0002-1562-7602 Gomez, Elvira|||0000-0002-9223-6357 Nogués, Josep|||0000-0003-4616-1371 Michler, Johann|||0000-0001-8860-4068 Philippe, Laetitia|||0000-0003-0928-4487 |
| author2_role |
author author author author author author |
| dc.subject.none.fl_str_mv |
Ecotoxicity ZnO-Based photocatalysts Sunlight photocatalysis Microalgae Persistent organic pollutants |
| topic |
Ecotoxicity ZnO-Based photocatalysts Sunlight photocatalysis Microalgae Persistent organic pollutants |
| description |
Developing efficient sunlight photocatalysts with enhanced photocorrosion resistance and minimal ecotoxicological effects on aquatic biota is critical to combat water contamination. Here, the role of chemical composition, architecture, and fixation on the ecotoxicological effects on microalgae of different ZnO and ZnO@ZnS based water decontamination photocatalysts was analyzed in depth. In particular, the ecotoxicological effects of films, nanoparticles and biomimetic micro/nano-ferns were carefully assessed by correlating the algae's viability to the Zn(II) release, the photocatalyst-microalgae interaction, and the production of reactive oxygen species (ROS). The results showed a drastic improvement in algal viability for supported ZnO@ZnS core@shell micro/nanoferns, as their ecotoxicity after 96 h light exposure was significantly lower (3.7-10.0% viability loss) compared to the ZnO films (18.4-35.5% loss), ZnO micro/nanoferns (28.5-53.5% loss), ZnO nanoparticles (48.3-91.7% loss) or ZnO@ZnS nanoparticles (8.6-19.2% loss) for catalysts concentrations ranging from 25 mgL¯¹ to 400 mgL¯¹. In particular, the ZnO@ZnS micro/nanoferns with a concentration of 400 mg L exhibited excellent photocatalytic efficiency to mineralize a multi-pollutant solution (81.4 ± 0.3% mineralization efficiency after 210 min under UV-filtered visible light irradiation) and minimal photocorrosion (<5% of photocatalyst dissolution after 96 h of UV-filtered visible light irradiation). Remarkably, the ZnO@ZnS micro/nanoferns showed lower loss of algal viability (9.8 ± 1.1%) after 96 h of light exposure, with minimal reduction in microalgal biomass (9.1 ± 1.0%), as well as in the quantity of chlorophyll-a (9.5 ± 1.0%), carotenoids (8.6 ± 0.9%) and phycocyanin (5.6 ± 0.6%). Altogether, the optimized ZnO@ZnS core@shell micro/nanoferns represent excellent ecofriendly photocatalysts for water remediation in complex media, as they combine enhanced sunlight remediation efficiency, minimal adverse effects on biological microorganisms, high reusability and easy recyclability. |
| publishDate |
2020 |
| dc.date.none.fl_str_mv |
2 2020-01-01 2020 2020-01-01 |
| dc.type.none.fl_str_mv |
Article http://purl.org/coar/resource_type/c_6501 SMUR http://purl.org/coar/version/c_71e4c1898caa6e32 |
| dc.type.openaire.fl_str_mv |
info:eu-repo/semantics/article |
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article |
| dc.identifier.none.fl_str_mv |
https://ddd.uab.cat/record/233977 https://dx.doi.org/urn:doi:10.1016/j.watres.2019.115210 |
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https://ddd.uab.cat/record/233977 https://dx.doi.org/urn:doi:10.1016/j.watres.2019.115210 |
| dc.language.none.fl_str_mv |
Inglés eng |
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Inglés |
| language |
eng |
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European Commission https://doi.org/10.13039/501100000780 754364 Agència de Gestió d'Ajuts Universitaris i de Recerca https://doi.org/10.13039/501100003030 2017/SGR-292 Ministerio de Economía y Competitividad https://doi.org/10.13039/501100003329 PCIN2016-093 Agencia Estatal de Investigación https://doi.org/10.13039/501100011033 TEC2017-85059-C3-2-R Ministerio de Economía y Competitividad https://doi.org/10.13039/501100003329 SEV-2017-0706 |
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open access http://purl.org/coar/access_right/c_abf2 https://creativecommons.org/licenses/by-nc-nd/4.0/ |
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open access http://purl.org/coar/access_right/c_abf2 https://creativecommons.org/licenses/by-nc-nd/4.0/ |
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openAccess |
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application/pdf |
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