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

The 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” H(2)S gas generated by a sulfidogenic bioreactor. ZnS nanoparticles wer...

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Autores principales: Segura, Aileen, Rodriguez, Araceli, Hernández, Pedro, Pesenti, Hector, Hernández-Montelongo, Jacobo, Arranz, Antonio, Benito, Noelia, Bitencourt, José, Vergara-González, Luis, Nancucheo, Iván, Recio-Sánchez, Gonzalo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10004825/
https://www.ncbi.nlm.nih.gov/pubmed/36903813
http://dx.doi.org/10.3390/nano13050935
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author Segura, Aileen
Rodriguez, Araceli
Hernández, Pedro
Pesenti, Hector
Hernández-Montelongo, Jacobo
Arranz, Antonio
Benito, Noelia
Bitencourt, José
Vergara-González, Luis
Nancucheo, Iván
Recio-Sánchez, Gonzalo
author_facet Segura, Aileen
Rodriguez, Araceli
Hernández, Pedro
Pesenti, Hector
Hernández-Montelongo, Jacobo
Arranz, Antonio
Benito, Noelia
Bitencourt, José
Vergara-González, Luis
Nancucheo, Iván
Recio-Sánchez, Gonzalo
author_sort Segura, Aileen
collection PubMed
description The 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” H(2)S 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.
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spelling pubmed-100048252023-03-11 Sulfidogenic Bioreactor-Mediated Formation of ZnS Nanoparticles with Antimicrobial and Photocatalytic Activity Segura, Aileen Rodriguez, Araceli Hernández, Pedro Pesenti, Hector Hernández-Montelongo, Jacobo Arranz, Antonio Benito, Noelia Bitencourt, José Vergara-González, Luis Nancucheo, Iván Recio-Sánchez, Gonzalo Nanomaterials (Basel) Article The 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” H(2)S 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. MDPI 2023-03-04 /pmc/articles/PMC10004825/ /pubmed/36903813 http://dx.doi.org/10.3390/nano13050935 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Segura, Aileen
Rodriguez, Araceli
Hernández, Pedro
Pesenti, Hector
Hernández-Montelongo, Jacobo
Arranz, Antonio
Benito, Noelia
Bitencourt, José
Vergara-González, Luis
Nancucheo, Iván
Recio-Sánchez, Gonzalo
Sulfidogenic Bioreactor-Mediated Formation of ZnS Nanoparticles with Antimicrobial and Photocatalytic Activity
title Sulfidogenic Bioreactor-Mediated Formation of ZnS Nanoparticles with Antimicrobial and Photocatalytic Activity
title_full Sulfidogenic Bioreactor-Mediated Formation of ZnS Nanoparticles with Antimicrobial and Photocatalytic Activity
title_fullStr Sulfidogenic Bioreactor-Mediated Formation of ZnS Nanoparticles with Antimicrobial and Photocatalytic Activity
title_full_unstemmed Sulfidogenic Bioreactor-Mediated Formation of ZnS Nanoparticles with Antimicrobial and Photocatalytic Activity
title_short Sulfidogenic Bioreactor-Mediated Formation of ZnS Nanoparticles with Antimicrobial and Photocatalytic Activity
title_sort sulfidogenic bioreactor-mediated formation of zns nanoparticles with antimicrobial and photocatalytic activity
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10004825/
https://www.ncbi.nlm.nih.gov/pubmed/36903813
http://dx.doi.org/10.3390/nano13050935
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