Green Synthesis of Copper Oxide Nanoparticles from Catharanthus Roseus Plant Leaf Extract and Its Investigation

In recent years, nanotechnology is a burning field for researchers. Studies on the green synthesis of metal oxide nanoparticles (NPs) have been carried out with various plant extracts. Considering the huge possibility of plants as sources, this work expects to apply green preparation for the copper oxide (CuO) NPs as an option in contrast to regular techniques. Plant separates ready to lessen the metal particles in a more limited time, while microorganism-based techniques require a more extended time. The simple accessibility of plants in nature makes them more favored organic assets than microorganisms. CuO NPs were infused by green synthesis procedure from copper sulphate solution through the aqueous extract of catharanthus roseus, a relentless ratio of plant extract to metal ion was prepared, then the color change was observed which proved the formation of NPs. This method is fast, straightforward with no unsafe synthetic substances as lessening or balancing out specialists, and prudent to blended CuO NPs. The NPs obtained were analyzed by X-ray diffraction (XRD), UV-DRS spectroscopy method, Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and zeta potential. The prepared NPs were found in crystalline size range of 43.7 nm. The SEM images confirmed and explained that the NPs shape is a spherical shape with an average diameter of 43 nm. FTIR analysis confirmed that Cu-O peaks are obtained. The CuO demonstrates direct bandgap energy of 2.04 eV from UV-DRS spectroscopy. Zeta potentials analyzed explained the narrow size of NPs stability. CuO NPs, due to their unique physical and chemical properties and low-cost preparation, have been of great interest recently. CuO NPs have been applied as dietary added substances, grease supplements, compound sensors, covering materials notwithstanding countless biotechnological and drugs applications. The article explains the comfortable application of catharanthus roseus extract as an efficient preparation of CuO NPs through green synthesis technique to obtain crystalline material.