Biosynthesis and Characterization of Copper Oxide Nanoparticles

• DOI: 10.3390/ecp2023-14629
• Publication Date: 2023-07-12T04:49:11Z
• Authors: Alina Matei; Gabriel Craciun; Cosmin Romanitan; Cristina Pachiu; Vasilica Tucureanu
• Keywords: Monoclinic crystal system; Copper oxide

In this paper, we report the use of natural extract Echinacea leaves [Echinacea purples] for biosynthesis copper oxide nanoparticles, with nitrate [Cu(NO3)2 3H2O] used as a metal precursor salt. The synthesized CuO was investigated using Fourier transform infrared spectrometry (FTIR), Raman spectroscopy, X-ray diffraction, scanning electron microscopy (FESEM), and energy dispersive analysis (EDX). FTIR spectra confirm not only presence Cu-O bond by appearance characteristic peak at 402 cm−1, but also functional groups biomolecules present in plant extracts used. indicate peaks wavelengths 272 610 which are bands CuO. XRD diffractogram indicates formation monoclinic crystalline structure distinctive corresponding to (110), (002), (111) planes, an average crystallite size 15 nm. SEM images reveal spherical particles dimensions below 40 EDX spectrum confirms attributed (C) (O) atoms without other impurities. Due small size, morphology, precise elemental composition NPs, approach allows synthesis biomaterials applicability development antibacterial agents biosensors.