PbS nanopowder – synthesis, characterization and antimicrobial activity

• Autorzy: Suganya M. , Balu A. R.

Identyfikatory

DOI

10.1515/msp-2017-0046

• Języki publikacji: EN

Abstrakty

EN

Lead sulphide (PbS) nanopowder was synthesized by a simple soft chemical route using lead nitrate and thiourea as precursor salts. The as-synthesized nanopowder was characterized by XRD, SEM, EDX, FT-IR, PL, Raman and magnetic measurements. XRD studies reveal the polycrystalline nature of the powder. The powder exhibits face-centered cubic structure with a strong (2 0 0) preferential orientation. The presence of Pb and S in the powder is confirmed by energy dispersive X-ray analysis. The peaks observed at 1112 cm^-1 and at 606 cm^-1 in the FT-IR spectrum are related to heteropolar diatomic molecules of PbS. The Raman peak shift at 173 cm^-1 might have originated from the combination of longitudinal and transverse acoustic phonon modes associated with PbS crystal. The M-H loop confirms the paramagnetic nature of the as-synthesized PbS nanopowder. The nanopowder has significant antimicrobial activity against certain bacteria and fungi strains which make it suitable as antimicrobial agent against pathogenic microorganisms.

Słowa kluczowe

EN

X-ray diffraction; photoluminescence; energy dispersive X-ray analysis; antimicrobial properties

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2017
• Tom: Vol. 35, No. 2
• Strony: 322--328
• Opis fizyczny: Bibliogr. 26 poz., rys., tab.

Twórcy

autor

Suganya M.

• PG and Research Department of Physics, AVVM Sri Pushpam College, Poondi-613 503, Tamilnadu, India

autor

Balu A. R.

• PG and Research Department of Physics, AVVM Sri Pushpam College, Poondi-613 503, Tamilnadu, India

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Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).