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http://hdl.handle.net/2445/145204
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DC Field | Value | Language |
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dc.contributor.author | Serrà i Ramos, Albert | - |
dc.contributor.author | Gómez, Elvira | - |
dc.contributor.author | Philippe, Laetitia | - |
dc.date.accessioned | 2019-11-21T18:16:33Z | - |
dc.date.available | 2019-11-21T18:16:33Z | - |
dc.date.issued | 2019-11-20 | - |
dc.identifier.issn | 2073-4344 | - |
dc.identifier.uri | http://hdl.handle.net/2445/145204 | - |
dc.description.abstract | Biomimetic/bioinspired engineering and sulfidation processes are effective strategies for improving the visible light-driven photocatalytic performance of ZnO photocatalysts. A facile electrodeposition process in high oxygen-flux conditions was used to synthesize well-defined fractal micro/nanoferns, consequently increasing the photocatalyst's light-trapping capability and accessible active surface. Next, a simple sulfidation process was used to form a thin layer of ZnS, producing ZnO@ZnS core@shell micro/nanoferns and thereby tuning the optoelectronic properties and extending the photoresponse to the visible region. The ZnO@ZnS micro/nanoferns exhibited clear superiority over other ZnO photocatalyts in the photooxidation of persistent organic pollutants (POPs) and the photoreduction of Cr(VI). Their excellent photocatalytic performance allowed the photodegradation under UV-filtered sunlight of nearly 97% of methylene blue after 60 min; the mineralization of >98% of a mixture of methylene blue, 4-nitrophenol, and rhodamine-B after 210 min; and the removal of nearly 65% of Cr(VI) after 180 min. In addition, the ZnO@ZnS micro/nanoferns demonstrated good ability to decontaminate an inorganic-organic bipollutant system, with promising potential to leverage synergistic effects. Finally, these micro/nanoferns presented great recyclability and reusability for both photooxidation and photoremediation processes. These findings support that sulfidation and biomimetic engineering can be a superior route for designing efficient sunlight-driven ZnO-photocatalysts for water decontamination. | - |
dc.format.extent | 16 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/catal9120974 | - |
dc.relation.ispartof | Catalysts, 2019, vol. 9, p. 974 | - |
dc.relation.uri | https://doi.org/10.3390/catal9120974 | - |
dc.rights | cc-by (c) Serrà i Ramos, Albert et al., 2019 | - |
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 | Òxid de zinc | - |
dc.subject.other | Photocatalysis | - |
dc.subject.other | Zinc oxide | - |
dc.title | Bioinspired ZnO-based solar photocatalysts for the efficient decontamination of persistent organic pollutants and hexavalent chromium in wastewater | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 693127 | - |
dc.date.updated | 2019-11-21T18:16:34Z | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Ciència dels Materials i Química Física) |
Files in This Item:
File | Description | Size | Format | |
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693127.pdf | 2.97 MB | Adobe PDF | View/Open |
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