access icon free Synthesis, characterisation, and antimicrobial activity of ZnO-based nanocomposites

© The Institution of Engineering and Technology
Received 21/05/2018, Accepted 09/08/2018, Revised 19/07/2018, Published 01/12/2018

In this study, ZnO-based nanocomposites including ZnO/CuO (S1), ZnO/MnO (S2), and ZnO/MnO/CuO (S3), were synthesised. S1, S2, and S3 were characterised through Fourier transform infrared (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy dispersive X-ray spectroscopy (EDS) techniques. Also, the antimicrobial property of the samples was examined against both Gram-positive Staphylococcus aureus and Gram-negative Escherichia coli through the colony forming count method. FTIR analysis confirmed the presence of Zn–O, Mn–O, and Cu–O in the samples. The crystalline structure of the sample was analysed by XRD. The surface morphology of the prepared compounds was studied with SEM images. EDS technique was employed for ensuring the presence of Zn, Mn, and Cu elements in the samples. The results clearly showed S1, S2, and S3 had high-antimicrobial activity especially for S3.

Inspec keywords: nanoparticles; II-VI semiconductors; nanofabrication; scanning electron microscopy; Fourier transform infrared spectra; X-ray chemical analysis; X-ray diffraction; crystal structure; surface morphology; antibacterial activity; zinc compounds; wide band gap semiconductors; nanocomposites; manganese compounds; copper compounds

Other keywords: XRD; gram-positive Staphylococcus aureus; FTIR; Fourier transform infrared spectra; scanning electron microscopy; ZnO-MnO-CuO; crystalline structure; colony forming count method; gram-negative Escherichia coli; nanocomposites; X-ray diffraction; high-antimicrobial activity; surface morphology; energy dispersive X-ray spectroscopy

Subjects: II-VI and III-V semiconductors; Nanometre-scale semiconductor fabrication technology; Infrared and Raman spectra in inorganic crystals; Other methods of nanofabrication; Solid surface structure; Electromagnetic radiation spectrometry (chemical analysis); Biomedical materials; Crystal structure of specific inorganic compounds; Structure of solid clusters, nanoparticles, nanotubes and nanostructured materials

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