ABSTRACT
Chemical co-precipitation was applied to create ZnxNi1–xO nano-powder material composites. Th is was achieved by mixing varied ratios (X = 0.0, 0.25, 0.50, 0.75 and 1.0) of zinc oxide (ZnO) and nickel oxide (NiO). Th e fabricated samples were then annealed at 400°C for 2 h. Th e outcomes of the X-ray diff raction (XRD) analysis revealed hexagonal or cubic lattices. Th e crystallite sizes were evaluated using Debye-Scherrer and Williamson-Hall equations. Th e outcomes of the Fourier transform infrared (FTIR) spectroscopy verifi ed the existence of ZnO and NiO in all samples. Th e results of the fi eld emission scanning electron microscopy (FESEM) revealed diff erent nano-structures, and the morphology relied on the X. Th e outcomes of the energy-dispersive X-ray (EDX) confi rmed the purity of the samples. Moreover, zinc (Zn), nickel (Ni) and oxygen (O) were discovered, which are compatible with the XRD and FTIR outcomes. Finally, the Kubelka-Munk function (F[R∞]) was applied to evaluate the samples’ optical characteristics in the ultraviolet-visible (UV-Vis) range. Th e energy gap (Eg) of the samples varied according to the X. Numerous samples had two Eg.
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