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

Paskocimas, Carlos Alberto; Andrade Neto, Nivaldo Freire de; Oliveira, Y. G.; Delmonte, Maurício Roberto Bomio; Motta, Fabiana Villela da

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

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dc.contributor.author	Paskocimas, Carlos Alberto
dc.contributor.author	Andrade Neto, Nivaldo Freire de
dc.contributor.author	Oliveira, Y. G.
dc.contributor.author	Delmonte, Maurício Roberto Bomio
dc.contributor.author	Motta, Fabiana Villela da
dc.date.accessioned	2021-04-14T20:03:14Z
dc.date.available	2021-04-14T20:03:14Z
dc.date.issued	2018-09-08
dc.description.resumo	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 Pb2+ 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	pt_BR
dc.identifier.citation	ANDRADE NETO, N. F.; OLIVEIRA, Y. G.; PASKOCIMAS, C. A.; BOMIO, M. R. D.; MOTTA, F. V.. Increase of antimicrobial and photocatalytic properties of silver-doped PbS obtained by sonochemical method. Journal of Materials Science: Materials in Electronics, [S.L.], v. 29, n. 22, p. 19052-19062, 8 set. 2018. Disponível em: https://link.springer.com/article/10.1007%2Fs10854-018-0031-z. Acesso em: 11 dez. 2020. http://dx.doi.org/10.1007/s10854-018-0031-z.	pt_BR
dc.identifier.doi	10.1007/s10854-018-0031-z
dc.identifier.issn	0957-4522
dc.identifier.issn	1573-482X
dc.identifier.uri	https://repositorio.ufrn.br/handle/123456789/32209
dc.language	en	pt_BR
dc.publisher	Springer	pt_BR
dc.rights	Attribution 3.0 Brazil	*
dc.rights.uri	http://creativecommons.org/licenses/by/3.0/br/	*
dc.subject	Antimicrobial	pt_BR
dc.subject	Photocatalytic properties	pt_BR
dc.subject	Silver- doped PbS	pt_BR
dc.subject	Sonochemical method	pt_BR
dc.title	Increase of antimicrobial and photocatalytic properties of silver- doped PbS obtained by sonochemical method	pt_BR
dc.type	article	pt_BR