Sulfidogenic Bioreactor-Mediated Formation of ZnS Nanoparticles with Antimicrobial and Photocatalytic Activity

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datacite.alternateIdentifier.citationNANOMATERIALS,Vol.13,,2023
datacite.alternateIdentifier.doi10.3390/nano13050935
datacite.creatorSegura, Aileen
datacite.creatorRodriguez, Araceli
datacite.creatorHernandez, Pedro
datacite.creatorPesenti, Hector
datacite.creatorHernandez Montelongo, Jacobo
datacite.creatorArranz, Antonio
datacite.creatorBenito, Noelia
datacite.creatorBitencourt, Jose
datacite.creatorVergara Gonzalez, Luis
datacite.creatorNancucheo, Ivan
datacite.creatorRecio Sanchez, Gonzalo
datacite.date2023
datacite.subject.englishsulfidogenic bioreactor
datacite.subject.englishZnS nanoparticles
datacite.subject.englishphotocatalytic activity
datacite.subject.englishantibacterial activity
datacite.subject.englishorganic dye degradation
datacite.titleSulfidogenic Bioreactor-Mediated Formation of ZnS Nanoparticles with Antimicrobial and Photocatalytic Activity
dc.date.accessioned2023-06-08T15:48:15Z
dc.date.available2023-06-08T15:48:15Z
dc.description.abstractThe use of sulfidogenic bioreactors is a biotechnology trend to recover valuable metals such as copper and zinc as sulfide biominerals from mine-impacted waters. In the present work, ZnS nanoparticles were produced using 'green' H2S gas generated by a sulfidogenic bioreactor. ZnS nanoparticles were physico-chemically characterized by UV-vis and fluorescence spectroscopy, TEM, XRD and XPS. The experimental results showed spherical-like shape nanoparticles with principal zinc-blende crystalline structure, a semiconductor character with an optical band gap around 3.73 eV, and fluorescence emission in the UV-visible range. In addition, the photocatalytic activity on the degradation of organic dyes in water, as well as bactericidal properties against several bacterial strains, were studied. ZnS nanoparticles were able to degrade methylene blue and rhodamine in water under UV radiation, and also showed high antibacterial activity against different bacterial strains including Escherichia coli and Staphylococcus aureus. The results open the way to obtain valorous ZnS nanoparticles from the use of dissimilatory reduction of sulfate using a sulfidogenic bioreactor.
dc.identifier.urihttps://repositoriodigital.uct.cl/handle/10925/5316
dc.language.isoen
dc.publisherMDPI
dc.sourceNANOMATERIALS
oaire.resourceTypeArticle
uct.indizacionSCI
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