Size Effect in Hybrid TiO2:Au Nanostars for Photocatalytic Water Remediation Applications
dc.contributor.author | Zheng, Fangyuan | |
dc.contributor.author | Martins, Pedro M. | |
dc.contributor.author | Queirós, Joana M. | |
dc.contributor.author | Tavares, Carlos J. | |
dc.contributor.author | Vilas Vilela, José Luis | |
dc.contributor.author | Lanceros Méndez, Senentxu | |
dc.contributor.author | Reguera Gómez, Javier | |
dc.date.accessioned | 2022-11-25T17:33:31Z | |
dc.date.available | 2022-11-25T17:33:31Z | |
dc.date.issued | 2022-11-08 | |
dc.identifier.citation | International Journal of Molecular Sciences 23(22) : (2022) // Article ID 13741 | es_ES |
dc.identifier.issn | 1422-0067 | |
dc.identifier.uri | http://hdl.handle.net/10810/58560 | |
dc.description.abstract | TiO2:Au-based photocatalysis represents a promising alternative to remove contaminants of emerging concern (CECs) from wastewater under sunlight irradiation. However, spherical Au nanoparticles, generally used to sensitize TiO2, still limit the photocatalytic spectral band to the 520 nm region, neglecting a high part of sun radiation. Here, a ligand-free synthesis of TiO2:Au nanostars is reported, substantially expanding the light absorption spectral region. TiO2:Au nanostars with different Au component sizes and branching were generated and tested in the degradation of the antibiotic ciprofloxacin. Interestingly, nanoparticles with the smallest branching showed the highest photocatalytic degradation, 83% and 89% under UV and visible radiation, together with a threshold in photocatalytic activity in the red region. The applicability of these multicomponent nanoparticles was further explored with their incorporation into a porous matrix based on PVDF-HFP to open the way for a reusable energy cost-effective system in the photodegradation of polluted waters containing CECs | es_ES |
dc.description.sponsorship | This research was funded by Spanish State Research Agency (AEI) through the project PID2019-106099RB-C43/AEI/10.13039/501100011033 and the Basque Government under the ELKARTEK program. P.M.M. thanks the FCT for contract 2020.02802.CEECIND. C.J.T. acknowledges the funding from FCT/PIDDAC through the Strategic Funds project reference UIDB/04650/2020-2023. F.Z. thanks the University of the Basque Country (UPV/EHU) for the PhD fellowship. | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | MDPI | es_ES |
dc.relation | info:eu-repo/grantAgreement/MICINN/PID2019-106099RB-C43/ | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | |
dc.subject | antibiotic degradation | es_ES |
dc.subject | hybrid TiO2:Au nanoparticles | es_ES |
dc.subject | visible photocatalysis | es_ES |
dc.subject | water remediation | es_ES |
dc.title | Size Effect in Hybrid TiO2:Au Nanostars for Photocatalytic Water Remediation Applications | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.date.updated | 2022-11-24T14:43:32Z | |
dc.rights.holder | © 2022 by the authors.Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/ 4.0/). | es_ES |
dc.relation.publisherversion | https://www.mdpi.com/1422-0067/23/22/13741 | es_ES |
dc.identifier.doi | 10.3390/ijms232213741 | |
dc.departamentoes | Química física | |
dc.departamentoeu | Kimika fisikoa |
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Except where otherwise noted, this item's license is described as © 2022 by the authors.Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/ 4.0/).