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Segura A, Rodriguez A, Hernández P, Pesenti H, Hernández-Montelongo J, Arranz A, Benito N, Bitencourt J, Vergara-González L, Nancucheo I, Recio-Sánchez G. Sulfidogenic Bioreactor-Mediated Formation of ZnS Nanoparticles with Antimicrobial and Photocatalytic Activity. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:935. [PMID: 36903813 PMCID: PMC10004825 DOI: 10.3390/nano13050935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 02/28/2023] [Accepted: 03/02/2023] [Indexed: 06/18/2023]
Abstract
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" 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.
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Affiliation(s)
- Aileen Segura
- Facultad de Ingeniería, Arquitectura y Diseño, Universidad San Sebastián, Concepción 4030000, Chile
| | - Araceli Rodriguez
- Facultad de Ingeniería, Arquitectura y Diseño, Universidad San Sebastián, Concepción 4030000, Chile
| | - Pedro Hernández
- Facultad de Ingeniería, Arquitectura y Diseño, Universidad San Sebastián, Concepción 4030000, Chile
| | - Hector Pesenti
- Núcleo de Investigación en Bioproductos y Materiales Avanzados, Universidad Católica de Temuco, Temuco 4780000, Chile
| | - Jacobo Hernández-Montelongo
- Núcleo de Investigación en Bioproductos y Materiales Avanzados, Universidad Católica de Temuco, Temuco 4780000, Chile
| | - Antonio Arranz
- Departamento de Física Aplicada, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain
| | - Noelia Benito
- Departamento de Física, Universidad de Concepción, Concepción 4030000, Chile
| | | | - Luis Vergara-González
- Facultad de Medicina y Ciencia, Universidad San Sebastián, Concepción 4030000, Chile
| | - Iván Nancucheo
- Facultad de Ingeniería, Arquitectura y Diseño, Universidad San Sebastián, Concepción 4030000, Chile
| | - Gonzalo Recio-Sánchez
- Facultad de Ingeniería, Arquitectura y Diseño, Universidad San Sebastián, Concepción 4030000, Chile
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Saiyed TA, Adeyemi JO, Saibu GM, Singh M, Oyedeji AO, Hosten EC, Onwudiwe DC. Bipyridine adducts of Zn(II) and Ni(II) bis (N-methyl-N-phenyl dithiocarbamate): Synthesis, characterization, and biological applications. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2022.134335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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