Green synthesis of tellurium nanoparticles by tellurate and tellurite reduction using Aeromonas hydrophila under different aeration conditions

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dc.contributor.authorCastro Ruiz, Laura
dc.contributor.authorLi, Jing
dc.contributor.authorGonzález González, Felisa
dc.contributor.authorMuñoz Sánchez, Jesús Ángel
dc.contributor.authorBlázquez Izquierdo, María Luisa
dc.date.accessioned2023-12-13T14:45:51Z
dc.date.available2023-12-13T14:45:51Z
dc.date.issued2020
dc.description.abstractTellurium nanoparticles (TeNPs) are extensively used in biomedicine, electronics and some other industrial applications. Few microorganisms have been studied for the production of TeNPs either under aerobic or anaerobic conditions. Remarkably, this study is the first report of a bacteria able to perfectly grow anaerobically and aerobically in the presence of both tellurium oxyanions, TeO32− and TeO42−. Aeromonas hydrophila offers a clean and cost-effective synthesis of tellurium nanoparticles using a biological method and overcoming the main limitations of traditional synthesis, such as the requirement of a lot of energy and toxic reagents. The cells grew up to 75 mg/L of tellurium when tellurite was the precursor and up to 200 mg/L of tellurium with tellurate. The biogenic nanoparticles were extensively characterized in terms of morphology, structure and composition using SEM, TEM, XRD and EDX analysis. Different Te(0) nanostructures were biosynthesized varying growth conditions: crystalline nanorods (some of them reach more than 1000 nm in length due to Ostwald ripening), rosettes and irregularly shaped nanospheres. In addition, A. hydrophila developed various mechanisms to produce the elemental tellurium and to overcome the toxicity demonstrating the versatility of this microorganism to subsist in polluted environments and its potential for biotechnological applications in bioremediation including the green synthesis of TeNPs.
dc.description.departmentDepto. de Ingeniería Química y de Materiales
dc.description.facultyFac. de Ciencias Químicas
dc.description.refereedTRUE
dc.description.sponsorshipMinisterio de Economía y Competitividad (España)
dc.description.statuspub
dc.identifier.citationCastro, L.; Li, J.; González, F.; Muñoz, J. A.; Blázquez, M. L. Green synthesis of tellurium nanoparticles by tellurate and tellurite reduction using Aeromonas hydrophila under different aeration conditions. Hydrometallurgy 2020, 196, 105415.
dc.identifier.doi10.1016/j.hydromet.2020.105415
dc.identifier.issn0304-386X
dc.identifier.officialurlhttps://doi.org/10.1016/j.hydromet.2020.105415
dc.identifier.urihttps://hdl.handle.net/20.500.14352/91228
dc.journal.titleHydrometallurgy
dc.language.isoeng
dc.publisherElsevier
dc.relation.projectIDMAT2014-59222R
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internationalen
dc.rights.accessRightsrestricted access
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject.cdu577.1
dc.subject.cdu612.015
dc.subject.keywordAeromonas hydrophila
dc.subject.keywordTellurium nanoparticles
dc.subject.keywordTellurate
dc.subject.keywordTellurite
dc.subject.keywordBiosynthesis
dc.subject.ucmMateriales
dc.subject.ucmMetalurgia
dc.subject.unesco3303 Ingeniería y Tecnología Químicas
dc.titleGreen synthesis of tellurium nanoparticles by tellurate and tellurite reduction using Aeromonas hydrophila under different aeration conditions
dc.typejournal article
dc.type.hasVersionVoR
dc.volume.number196
dspace.entity.typePublication
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relation.isAuthorOfPublication.latestForDiscovery93b5b649-29f0-4442-b669-6ee59981ae2b
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