Synthesis and characterization of Co2+ and Mn2+ Codoped ZnO nanoparticles obtained by the sonochemical method: photocatalytic and antimicrobial properties
| Autor: | N. F. Andrade Neto, Fabiana V. Motta, Mauricio R. D. Bomio, Y. G. Oliveira |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Materials science
Scanning electron microscope Nanoparticle 02 engineering and technology Antimicrobial activity 01 natural sciences chemistry.chemical_compound Photocatalytic properties Adsorption 0103 physical sciences Materials Chemistry Electrical measurements Electrical and Electronic Engineering Spectroscopy 010302 applied physics Doping 021001 nanoscience & nanotechnology Condensed Matter Physics Electronic Optical and Magnetic Materials chemistry Photocatalysis Sonochemical method Co2+ and Mn2+ codoped ZnO 0210 nano-technology Methylene blue Nuclear chemistry |
| Zdroj: | Repositório Institucional da UFRN Universidade Federal do Rio Grande do Norte (UFRN) instacron:UFRN |
| Popis: | Nanoparticles of Co2+ and Mn2+ codoped ZnO have been obtained by the sonochemical method. The nanoparticles were characterized by x-ray diffraction, scanning electron microscopy, ultraviolet–visible spectroscopy, N2 adsorption by the Brunauer–Emmett–Teller method and electrical measurements by current–voltage curves. The photocatalytic property was analyzed against the methylene blue (MB) dye and the antimicrobial properties were estimated against the Staphylococcus aureus (Gram-positive) and Escherichia coli (Gram-negative) bacteria by the disc diffusion method. The results indicate that ZnO powders were obtained without the formation of secondary phases, with initial nanoplate morphology, which is lost with doping. The codoped sample had a five-fold higher electrical response, reduced the MB dye concentration by 10% and increased the inhibition halo by 3 cm and 4 cm against S. aureus and E. coli, respectively, compared to bare ZnO. |
| Databáze: | OpenAIRE |
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