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Microwave-assisted hydrothermal synthesis of Ag/Bi2MoO6/ZnO heterojunction with nano Ag as electronic accelerator pump for high-efficienty photocatalytic degradation of levofloxacin

2024Journal article Restricted access
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dc.contributor.authorLi, Jun
dc.contributor.authorNie, Xin
dc.contributor.authorMeng, Lijian
dc.contributor.authorZhang, Xinjia
dc.contributor.authorBai, Liming
dc.contributor.authorChai, Dong-feng
dc.contributor.authorZhang, Wenzhi
dc.contributor.authorZhang, Zhuanfang
dc.contributor.authorDong, Guohua
dc.date.accessioned2024-09-27T15:36:12Z
dc.date.available2024-09-27T15:36:12Z
dc.date.issued2024
dc.descriptionThis work was supported by the National Natural Science Foundation of China (Grant No. 32272823), the Research Foundation of Education Bureau of Heilongjiang Province of China (Grant No. 145309113), the Plant Food Processing Technology Advantages Characteristic Discipline “Science and Technology Research” Special Project in Heilongjiang Province (Grant No. YSTSXK202309), and Innovation Project of Graduate Education of Qiqihar University (Grant No. QUZLTS_CX2023021).pt_PT
dc.description.abstractThe fluoroquinolone antibiotics, as a category of emerging refractory organic pollutants, have triggered intensive attention due to their persistent ecotoxicology for aquatic environments. Herein, a novel Ag/Bi2MoO6/ZnO (Ag/BMO/ZnO) heterojunction was prepared using a two-step microwave-assisted hydrothermal method for photocatalytic degradation of levofloxacin (LFX). The optimal Ag/BMO/ZnO delivers higher photocatalytic degradation efficiency toward LFX reaching 86.4 %, which is 3 times and 7 times higher than those of neat Bi2MoO6 and ZnO, respectively. This can mainly be attributed that the existence of heterojunction between Bi2MoO6 and ZnO promotes the transmission of photogenerated charges (e−/h+). Furthermore, the introduction of Ag nanoparticles serves as an electron accelerator pump, which can also effectively accelerate the transport and separation of the photogenerated e−/h+. Both of these indirectly retard the recombination of e−/h+. The radical capture assays demonstrate that 1O2, radical dotOH, h+ and radical dotO2– are responsible for the the degradation of LFX and the 1O2 is the primary reactive oxygen species (ROS). Moreover, based on the identification of degradation intermediates via the liquid-chromatography-mass spectrometry (LC-MS) technique, the possible degradation routes of LFX were plausibly inferred. In conclusion, this work provides a new perspective toward antibiotics removal by developing novel heterojunction photocatalysts anchored with precious nanoparticles.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationJun Li, Xin Nie, Lijian Meng, Xinjia Zhang, Liming Bai, Dong-feng Chai, Wenzhi Zhang, Zhuanfang Zhang, Guohua Dong, Microwave-assisted hydrothermal synthesis of Ag/Bi2MoO6/ZnO heterojunction with nano Ag as electronic accelerator pump for high-efficienty photocatalytic degradation of levofloxacin, Applied Surface Science, Volume 678, 2024, 161143, ISSN 0169-4332, https://doi.org/10.1016/j.apsusc.2024.161143.pt_PT
dc.identifier.doi10.1016/j.apsusc.2024.161143pt_PT
dc.identifier.issn0169-4332
dc.identifier.urihttp://hdl.handle.net/10400.22/26143
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S0169433224018579pt_PT
dc.subjectBi2MoO6pt_PT
dc.subjectElectronic accelerator pumppt_PT
dc.subjectHeterojunctionpt_PT
dc.subjectPhotocatalytic degradationpt_PT
dc.titleMicrowave-assisted hydrothermal synthesis of Ag/Bi2MoO6/ZnO heterojunction with nano Ag as electronic accelerator pump for high-efficienty photocatalytic degradation of levofloxacinpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.titleApplied Surface Sciencept_PT
oaire.citation.volume678pt_PT
person.familyNameMeng
person.givenNameLijian
person.identifier236430
person.identifier.ciencia-idC31B-0091-BD12
person.identifier.orcid0000-0001-6071-3502
person.identifier.scopus-author-id7202236050
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationcb02ae05-0786-47ff-b480-2fde7ef93e0d
relation.isAuthorOfPublication.latestForDiscoverycb02ae05-0786-47ff-b480-2fde7ef93e0d

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