Characterization of green synthesized of ZnO nanoparticles by using pinus brutia leaves extracts

Abstract

Zinc oxide (ZnO) nanoparticles have been synthesized by the leaf extracts of the Pinus Brutia (PB) Tree. The impact of the Pinus Brutia (PB) tree extracts and several pH values of the green fabrication mixture (6 to 12) on the ZnO NPs' characteristics has been investigated using several characterization techniques. The obtained results of both analysis of FTIR and UV–Visible spectroscopies of the acquired chosen plant, PB, were demonstrated and proposed to be a better option for the GS ZnO NPs at various pH levels. The UV–Visible spectrum of PB tree leaf extracts displayed one strong absorption peak at 275.3 nm at ambient temperature. The obtained FESEM results analysis demonstrated that the pH values have a noticeable and huge impact affecting the morphology, orientation, shape, and dimensions of the Green Synthesized (GS) ZnO NPs, which are spherical in form and range in size from (37.47 to 73.70 nm). Additionally, the XRD data demonstrate that the produced GS ZnO NPs are GS ZnO that has hexagonal and wurtzite crystal structure, having particle sizes along the (002) peak within the (16.9–24.15) nm range. The UV–Visible analysis of the synthetic GS ZnO NPs revealed a significant peak for ZnO NPs made at various pH levels; the absorption is high in the UV area of less than (400 nm), and with a low absorption rate in the visible range. The band-gap energy (Eg) measured is in the (2.6–2.724) eV range. Additionally, the FTIR analysis of GS ZnO nanoparticles at various pH levels revealed no apparent peak throughout the visible range, demonstrating pure GS ZnO nanoparticles produced by employing PB tree leaf extracts. According to the results of the GS ZnO NP investigations, the GS ZnO NPs produced at pH 8 showed good quality and good improvement in comparison to the ZnO NPs produced at other pH values,