Photodegradation of ciprofloxacin and levofloxacin by Au@ZnONPs-MoS2-Rgo nanocomposites
This study aimed to investigate the photocatalytic performance of diverse zinc oxide catalysts containing gold nanoparticles (AuNPs), molybdenum disulfide (MoS2), and reduced graphene oxide (rGO) toward the degradation of the antibiotics levofloxacin (LFX) and ciprofloxacin (CFX) in aqueous solution...
| Autores: | , , , , , , , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Fecha de publicación: | 2023 |
| País: | España |
| Institución: | Universidad Autónoma de Madrid |
| Repositorio: | Biblos-e Archivo. Repositorio Institucional de la UAM |
| Idioma: | inglés |
| OAI Identifier: | oai:repositorio.uam.es:10486/707561 |
| Acceso en línea: | http://hdl.handle.net/10486/707561 https://dx.doi.org/10.3390/catal13030538 |
| Access Level: | acceso abierto |
| Palabra clave: | Ciprofloxacin Gold Nanoparticles Levofloxacin Molybdenum Disulfide Photodegradation Reduced Graphene Oxide Zinc Oxide Física |
| id |
ES_2c92fa6b3cd4601b7bbcdf77809c4a26 |
|---|---|
| oai_identifier_str |
oai:repositorio.uam.es:10486/707561 |
| network_acronym_str |
ES |
| network_name_str |
España |
| repository_id_str |
|
| spelling |
Photodegradation of ciprofloxacin and levofloxacin by Au@ZnONPs-MoS2-Rgo nanocompositesMachín, AbnielSoto-Vázquez, LoraineGarcía, DiegoCotto, MaríaOrtiz, DaynaBerríos-Rolón, Pedro J.Fontánez, KennethResto, EdgardMorant Zacarés, CarmenPetrescu, FlorianMárquez, FranciscoCiprofloxacinGold NanoparticlesLevofloxacinMolybdenum DisulfidePhotodegradationReduced Graphene OxideZinc OxideFísicaThis study aimed to investigate the photocatalytic performance of diverse zinc oxide catalysts containing gold nanoparticles (AuNPs), molybdenum disulfide (MoS2), and reduced graphene oxide (rGO) toward the degradation of the antibiotics levofloxacin (LFX) and ciprofloxacin (CFX) in aqueous solutions. The obtained results demonstrate that LFX is more resistant to degradation when compared with CFX and that the principal route of degradation under visible light is the formation of hydroxyl radicals. Photoluminescence (PL) measurements were employed to verify the inhibitory effect of electron–hole recombination when AuNPs, MoS2, and rGO are integrated into a semiconductor. The catalyst that achieved the highest percentage of CFX degradation was 1%Au@ZnONPs-3%MoS2-1%rGO, exhibiting a degradation efficiency of 96%, while the catalyst that exhibited the highest percentage of LFX degradation was 5%Au@ZnONPs-3%MoS2-1%rGO, displaying a degradation efficiency of 99.8%. A gas chromatography–mass spectrometry (GC-MS) analysis enabled the identification of reaction intermediates, facilitating the determination of a potential degradation pathway for both antibiotics. Additionally, recyclability assessments showed that the synthesized catalysts maintained stable photocatalytic efficiencies after 15 cycles, indicating that the heterostructures have the potential for further usage and may be tested with other organic contaminants as wellThe financial support from the NSF Center for the Advancement of Wearable TechnologiesCAWT (grant 1849243), from the Consortium of Hybrid Resilient Energy Systems (DE-NA0003982), and from the Spanish Ministry of Economy and Competitiveness, under NanoCat-Com Project (PID2021-124667OB-I00), are gratefully acknowledgedThe financial support from the NSF Center for the Advancement of Wearable TechnologiesCAWT (grant 1849243), from the Consortium of Hybrid Resilient Energy Systems (DE-NA0003982), and from the Spanish Ministry of Economy and Competitiveness, under NanoCat-Com Project (PID2021-124667OB-I00), are gratefully acknowledgedMDPIDepartamento de Física AplicadaFacultad de Ciencias20232023-03-07research articlehttp://purl.org/coar/resource_type/c_2df8fbb1VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10486/707561https://dx.doi.org/10.3390/catal13030538reponame:Biblos-e Archivo. Repositorio Institucional de la UAMinstname:Universidad Autónoma de MadridInglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:repositorio.uam.es:10486/7075612026-06-23T12:46:27Z |
| dc.title.none.fl_str_mv |
Photodegradation of ciprofloxacin and levofloxacin by Au@ZnONPs-MoS2-Rgo nanocomposites |
| title |
Photodegradation of ciprofloxacin and levofloxacin by Au@ZnONPs-MoS2-Rgo nanocomposites |
| spellingShingle |
Photodegradation of ciprofloxacin and levofloxacin by Au@ZnONPs-MoS2-Rgo nanocomposites Machín, Abniel Ciprofloxacin Gold Nanoparticles Levofloxacin Molybdenum Disulfide Photodegradation Reduced Graphene Oxide Zinc Oxide Física |
| title_short |
Photodegradation of ciprofloxacin and levofloxacin by Au@ZnONPs-MoS2-Rgo nanocomposites |
| title_full |
Photodegradation of ciprofloxacin and levofloxacin by Au@ZnONPs-MoS2-Rgo nanocomposites |
| title_fullStr |
Photodegradation of ciprofloxacin and levofloxacin by Au@ZnONPs-MoS2-Rgo nanocomposites |
| title_full_unstemmed |
Photodegradation of ciprofloxacin and levofloxacin by Au@ZnONPs-MoS2-Rgo nanocomposites |
| title_sort |
Photodegradation of ciprofloxacin and levofloxacin by Au@ZnONPs-MoS2-Rgo nanocomposites |
| dc.creator.none.fl_str_mv |
Machín, Abniel Soto-Vázquez, Loraine García, Diego Cotto, María Ortiz, Dayna Berríos-Rolón, Pedro J. Fontánez, Kenneth Resto, Edgard Morant Zacarés, Carmen Petrescu, Florian Márquez, Francisco |
| author |
Machín, Abniel |
| author_facet |
Machín, Abniel Soto-Vázquez, Loraine García, Diego Cotto, María Ortiz, Dayna Berríos-Rolón, Pedro J. Fontánez, Kenneth Resto, Edgard Morant Zacarés, Carmen Petrescu, Florian Márquez, Francisco |
| author_role |
author |
| author2 |
Soto-Vázquez, Loraine García, Diego Cotto, María Ortiz, Dayna Berríos-Rolón, Pedro J. Fontánez, Kenneth Resto, Edgard Morant Zacarés, Carmen Petrescu, Florian Márquez, Francisco |
| author2_role |
author author author author author author author author author author |
| dc.contributor.none.fl_str_mv |
Departamento de Física Aplicada Facultad de Ciencias |
| dc.subject.none.fl_str_mv |
Ciprofloxacin Gold Nanoparticles Levofloxacin Molybdenum Disulfide Photodegradation Reduced Graphene Oxide Zinc Oxide Física |
| topic |
Ciprofloxacin Gold Nanoparticles Levofloxacin Molybdenum Disulfide Photodegradation Reduced Graphene Oxide Zinc Oxide Física |
| description |
This study aimed to investigate the photocatalytic performance of diverse zinc oxide catalysts containing gold nanoparticles (AuNPs), molybdenum disulfide (MoS2), and reduced graphene oxide (rGO) toward the degradation of the antibiotics levofloxacin (LFX) and ciprofloxacin (CFX) in aqueous solutions. The obtained results demonstrate that LFX is more resistant to degradation when compared with CFX and that the principal route of degradation under visible light is the formation of hydroxyl radicals. Photoluminescence (PL) measurements were employed to verify the inhibitory effect of electron–hole recombination when AuNPs, MoS2, and rGO are integrated into a semiconductor. The catalyst that achieved the highest percentage of CFX degradation was 1%Au@ZnONPs-3%MoS2-1%rGO, exhibiting a degradation efficiency of 96%, while the catalyst that exhibited the highest percentage of LFX degradation was 5%Au@ZnONPs-3%MoS2-1%rGO, displaying a degradation efficiency of 99.8%. A gas chromatography–mass spectrometry (GC-MS) analysis enabled the identification of reaction intermediates, facilitating the determination of a potential degradation pathway for both antibiotics. Additionally, recyclability assessments showed that the synthesized catalysts maintained stable photocatalytic efficiencies after 15 cycles, indicating that the heterostructures have the potential for further usage and may be tested with other organic contaminants as well |
| publishDate |
2023 |
| dc.date.none.fl_str_mv |
2023 2023-03-07 |
| dc.type.none.fl_str_mv |
research article http://purl.org/coar/resource_type/c_2df8fbb1 VoR http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| dc.type.openaire.fl_str_mv |
info:eu-repo/semantics/article |
| format |
article |
| dc.identifier.none.fl_str_mv |
http://hdl.handle.net/10486/707561 https://dx.doi.org/10.3390/catal13030538 |
| url |
http://hdl.handle.net/10486/707561 https://dx.doi.org/10.3390/catal13030538 |
| dc.language.none.fl_str_mv |
Inglés eng |
| language_invalid_str_mv |
Inglés |
| language |
eng |
| dc.rights.none.fl_str_mv |
open access http://purl.org/coar/access_right/c_abf2 |
| dc.rights.openaire.fl_str_mv |
info:eu-repo/semantics/openAccess |
| rights_invalid_str_mv |
open access http://purl.org/coar/access_right/c_abf2 |
| eu_rights_str_mv |
openAccess |
| dc.format.none.fl_str_mv |
application/pdf |
| dc.publisher.none.fl_str_mv |
MDPI |
| publisher.none.fl_str_mv |
MDPI |
| dc.source.none.fl_str_mv |
reponame:Biblos-e Archivo. Repositorio Institucional de la UAM instname:Universidad Autónoma de Madrid |
| instname_str |
Universidad Autónoma de Madrid |
| reponame_str |
Biblos-e Archivo. Repositorio Institucional de la UAM |
| collection |
Biblos-e Archivo. Repositorio Institucional de la UAM |
| repository.name.fl_str_mv |
|
| repository.mail.fl_str_mv |
|
| _version_ |
1869405250746580992 |
| score |
15,300724 |