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Increase of antimicrobial and photocatalytic properties of silver-doped PbS obtained by sonochemical method

Andrade Neto, N. F. ; Oliveira, Y. G. ; Paskocimas, C. A. ; Bomio, M. R. D. ; Motta, F. V.

Journal of materials science. Materials in electronics, 2018-11, Vol.29 (22), p.19052-19062 [Periódico revisado por pares]

New York: Springer US

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Título:
Increase of antimicrobial and photocatalytic properties of silver-doped PbS obtained by sonochemical method
Autor: Andrade Neto, N. F. ; Oliveira, Y. G. ; Paskocimas, C. A. ; Bomio, M. R. D. ; Motta, F. V.
Assuntos: Antiinfectives and antibacterials ; Antimicrobial agents ; Bacteria ; Catalytic activity ; Characterization and Evaluation of Materials ; Chemistry and Materials Science ; E coli ; Field emission microscopy ; Halos ; Lead sulfides ; Materials Science ; Methylene blue ; Optical and Electronic Materials ; Photocatalysis ; Properties (attributes) ; Scanning electron microscopy ; Silver ; X-ray diffraction ; Yeast
É parte de: Journal of materials science. Materials in electronics, 2018-11, Vol.29 (22), p.19052-19062
Descrição: In this work, pure PbS powders doped with silver were obtained in the proportions of 1, 2, 4 and 8 mol% by sonochemical method. Powders were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), UV–Vis spectroscopy (UV–Vis) and EPR analysis. The photocatalytic properties were estimated by degradation of methylene blue dye. The antimicrobial properties were studied by the formation of inhibition halos against Escherichia coli and Staphylococcus aureus bacteria and Candida albicans yeast. XRD patterns show that PbS, with a cubic structure, was obtained without the formation of secondary phases. FE-SEM analysis indicates loss of the cubic aspect of PbS samples as the Ag + concentration increases and particle size reduces. The defects generated by the substitution of Pb 2+ by Ag + increase the photocatalytic activity, where PbS and P8A samples reduced by 25% and 68%, respectively, the MB concentration and significantly increased the antimicrobial activity against E. coli and S. aureus bacteria and C. albicans yeast.
Editor: New York: Springer US
Idioma: Inglês

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Increase of antimicrobial and photocatalytic properties of silver-doped PbS obtained by sonochemical method

Andrade Neto, N. F. ; Oliveira, Y. G. ; Paskocimas, C. A. ; Bomio, M. R. D. ; Motta, F. V.

New York: Springer US

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