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DC Field | Value | Language |
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dc.contributor.author | Benamara, Majdi | - |
dc.contributor.author | Gómez, Elvira | - |
dc.contributor.author | Dhahri, Ramzi | - |
dc.contributor.author | Serrà i Ramos, Albert | - |
dc.date.accessioned | 2021-02-03T10:33:22Z | - |
dc.date.available | 2021-02-03T10:33:22Z | - |
dc.date.issued | 2021-01-17 | - |
dc.identifier.issn | 2072-6651 | - |
dc.identifier.uri | http://hdl.handle.net/2445/173612 | - |
dc.description.abstract | The ZnO-based visible-LED photocatalytic degradation and mineralization of two typical cyanotoxins, microcystin-LR (MC-LR) and anatoxin-A, were examined. Al-doped ZnO nanoparticle photocatalysts, in Al:Zn ratios between 0 and 5 at.%, were prepared via sol-gel method and exhaustively characterized by X-ray diffraction, transmission electron microscopy, UV-vis diffuse reflectance spectroscopy, photoluminescence spectroscopy, and nitrogen adsorption-desorption isotherms. With both cyanotoxins, increasing the Al content enhances the degradation kinetics, hence the use of nanoparticles with 5 at.% Al content (A5ZO). The dosage affected both cyanotoxins similarly, and the photocatalytic degradation kinetics improved with photocatalyst concentrations between 0.5 and 1.0 g L-1. Nevertheless, pH study revealed that the chemical state of a species decisively facilitates the mutual interaction of cyanotoxin and photocatalysts. A5ZO nanoparticles achieved better outcomes than other photocatalysts to date, and after 180 min, the mineralization of anatoxin-A was virtually complete in weak alkaline medium, whereas only 45% of MC-LR was in neutral conditions. Moreover, photocatalyst reusability is clear for anatoxin-A, but it is adversely affected for MC-LR. | - |
dc.format.extent | 14 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | MDPI | - |
dc.relation.isformatof | Reproducció del document publicat a: https://doi.org/10.3390/toxins13010066 | - |
dc.relation.ispartof | Toxins, 2021, vol. 13, num. 1, p. 66 | - |
dc.relation.uri | https://doi.org/10.3390/toxins13010066 | - |
dc.rights | cc-by (c) Benamara, Majdi et al., 2021 | - |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/es | - |
dc.source | Articles publicats en revistes (Ciència dels Materials i Química Física) | - |
dc.subject.classification | Fotocatàlisi | - |
dc.subject.classification | Nanopartícules | - |
dc.subject.classification | Díodes electroluminescents | - |
dc.subject.other | Photocatalysis | - |
dc.subject.other | Nanoparticles | - |
dc.subject.other | Light emitting diodes | - |
dc.title | Enhanced photocatalytic removal of cyanotoxins by Al-doped ZnO nanoparticles with visible-LED irradiation | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 705843 | - |
dc.date.updated | 2021-02-03T10:33:22Z | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
dc.identifier.pmid | 33477326 | - |
Appears in Collections: | Articles publicats en revistes (Ciència dels Materials i Química Física) |
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File | Description | Size | Format | |
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705843.pdf | 2.65 MB | Adobe PDF | View/Open |
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