Preparation and Characterization of CuO Nanoparticles Prepared Using Plasma Jet Method

Abstract

In this study, copper oxide nanostructures were created using argon plasma jets. Many methods include X-ray diffraction (XRD), Fourier transform infrared (FTIR), and ultraviolet and visible spectroscopy. The XRD pattern of the prepared CuO NPs, and the peaks obtained from CuO nanoparticles were detected at (2Ѳ = 32.69°, 35.73°, 38.92°, 46.49°, 49.06°, 51.62°, and 53.71°) 58.66°, 61.86°, 66.12°, 66.74°, 68.50°, 72.93°, and 75.40° for levels (110) ( ) (111) ( ) ( ) (112) (020) (202) ( ) (022) ( ) (220) (311) (004). These obtained peaks correspond to the crystal structure monoclinic type with lattice constants (a = 4.6350, b = 3.4100, and c = 5.1080 A°), space group (C 12/C 1 no. 15), and crystalline angles (α= γ= 90ᵒ, β= 99.48ᵒ) that closely matched the standard data (JCPDS 96-101-1149). The obtained XRD results of prepared CuO nanoparticles confirmed that the typical crystalline size of CuO nanoparticles is about 24.36 nm. FTIR spectrum showed the main vibration characteristic peaks at 424, 574, 1635, 2352 and 3268  of the synthesized CuO NPs. The obtained broad bands referred to the structures of copper oxides consisting of nanocrystals. The detected CuO nanostructures' UV-Vis findings showed a wide peak of absorption within the wavelength extending from 300 cm^-1 to 400 cm^-1, and calculated band gap energy equal to 1.4 eV.