This article explores the successful green synthesis of zinc oxide (ZnO) nanoparticles with a sustainable approach without using toxic chemicals or external stabilizers. The synthesized ZnO nanoparticles were characterized, and the investigation bridged the gap among physical, morphological, and optical properties. X-ray diffraction (XRD) analysis indicated the successful formation of a hexagonal wurtzite ZnO structure with an average crystallite size of 39.89 nm, representing high crystallinity and phase purity. The band gap energy was approximately 3.79 eV. UV-Visible results represented a strong optical absorption peak at 327 nm, proving the optical quality of the particles and exhibiting... More >