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Green zero-valent iron nanoparticles for the degradation of amoxicillin

2016Journal article Open access
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dc.contributor.authorMachado, S.
dc.contributor.authorNouws, H. P. A.
dc.contributor.authorJ.T., Albergaria
dc.contributor.authorDelerue-Matos, Cristina
dc.date.accessioned2019-06-06T13:19:38Z
dc.date.available2019-06-06T13:19:38Z
dc.date.issued2016
dc.description.abstractIn the last years, it has been proven that zerovalent iron nanoparticles, including those produced using green methods, are efficient remediation agents for a wide range of target contaminants. However, apart from the known advantages of these green nanomaterials, the knowledge of how they act on distinct contaminants is not yet fully understood and requires further investigation. The objectives of this work were to study the degradation of a common antibiotic, amoxicillin, in water and in a sandy soil using green zero-valent iron nanoparticles (gnZVIs) as reductants and as catalysts for the Fenton reaction. It represents the first study of the use of gnZVI, as alternative for the zero-valent iron nanoparticles produced with sodium borohydride, for the degradation of amoxicillin. The results of the performed tests indicate that gnZVIs have the potential to be used in remediation processes. In both chemical tests, the gnZVI was able to degrade up to 100% of amoxicillin in aqueous solutions, using an amoxicillin/ gnZVI molar ratio of 1:15 when applied as a reductant, and an amoxicillin/H2O2/gnZVI molar ratio of 1:13:1 when applied as a catalyst for the Fenton reaction. The soil tests showed that the required molar ratios for near complete degradation were higher in the reduction test (1:150) than in the gnZVI-catalyzed Fenton reaction (1:1290:73). This is possibly due to parallel reactions with the soil matrix and/or limitations of the reagents to reach the entire soil sample. The degradation efficiencies obtained in these tests were 55 and 97% for the reduction and catalyzed Fenton processes, respectively.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1007/s13762-016-1197-7pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.22/13874
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.relation.publisherversionhttps://link.springer.com/article/10.1007%2Fs13762-016-1197-7pt_PT
dc.subjectGreen zero-valent iron nanoparticlespt_PT
dc.subjectAmoxicillinpt_PT
dc.subjectSoilpt_PT
dc.subjectWaterpt_PT
dc.subjectFentonpt_PT
dc.subjectCatalystpt_PT
dc.subjectEnvironmental remediationpt_PT
dc.titleGreen zero-valent iron nanoparticles for the degradation of amoxicillinpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FQUI%2F50006%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/COMPETE/PTDC%2FAAG-TEC%2F2692%2F2012/PT
oaire.citation.endPage1118pt_PT
oaire.citation.issue5pt_PT
oaire.citation.startPage1109pt_PT
oaire.citation.titleInternational Journal of Environmental Science and Technologypt_PT
oaire.citation.volume14pt_PT
oaire.fundingStream5876
oaire.fundingStreamCOMPETE
person.familyNameNouws
person.familyNameAlbergaria
person.familyNameDelerue-Matos
person.givenNameHendrikus
person.givenNameJosé Tomás
person.givenNameCristina
person.identifier1046746
person.identifier.ciencia-id9B1A-9CED-6EE3
person.identifier.ciencia-id7B1F-764B-E842
person.identifier.ciencia-id9A1A-43FB-5C27
person.identifier.orcid0000-0002-1472-8866
person.identifier.orcid0000-0003-0737-5086
person.identifier.orcid0000-0002-3924-776X
person.identifier.ridD-5249-2013
person.identifier.ridD-8147-2013
person.identifier.ridD-4990-2013
person.identifier.scopus-author-id7801450247
person.identifier.scopus-author-id11839492500
person.identifier.scopus-author-id6603741848
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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