An investigation on the structural, morphological, optical, and antibacterial activity of Sr:CuS nanostructures
The aim of the present study is to synthesize Cu 1−x Sr x S (x = 0.00, 0.025, 0.05, 0.075, and 0.1) nanoparticles (NPs) using an easy chemical co-precipitation method in an efficient, inexpensive, and simple technique. The structural, morphological, and optical properties of the prepared samples wer...
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Veröffentlicht in: | Scientific reports 2024-10, Vol.14 (1), p.25169-17, Article 25169 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | The aim of the present study is to synthesize Cu
1−x
Sr
x
S (x = 0.00, 0.025, 0.05, 0.075, and 0.1) nanoparticles (NPs) using an easy chemical co-precipitation method in an efficient, inexpensive, and simple technique. The structural, morphological, and optical properties of the prepared samples were investigated using XRD, TEM, XRF, UV–Vis DRS, and PL characterization techniques. XRD spectra confirmed the Sr-doped copper sulfide nanoparticles have a hexagonal structure with crystallite sizes ranging from 15.15 to 16.04 nm, and, by XRF, the presence of the dopant was detected. TEM analysis confirmed that strontium ions had an effect on the shape of the CuS nanostructure, and the particle size increased from 16.27 to 17.32 nm after doping. A study using UV-Vis showed the presence of Sr doping increased the optical energy band gap (1.38 eV to 1.59 eV). At room temperature, one photoluminescence (PL) band was found at 826 nm. The antibacterial activity of CuS nanostructures against
E. coli
,
P. aeruginosa
,
Klebsiella pneumonia
,
and S. aureus
was evaluated by zone of inhibition. Sr doped CuS NPs exhibited the highest antibacterial activity against
S. aureus
(17 to 29 mm). Also, the results demonstrated that samples doped with 5, 7.5, and 10% Sr exhibited inhibitory effects against all the tested microbial strains higher than the antibiotic. |
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ISSN: | 2045-2322 2045-2322 |
DOI: | 10.1038/s41598-024-73701-4 |