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 >

In the present work, copper oxide (CuO) nanoparticles have been synthesized by a greener and more sustainable approach from neem (Azadirachta indica) leaf extract, which acts as a natural reducing and stabilizing agent. The phase composition, structural, and morphological features of the nanomaterial were thoroughly characterized by XRD, FTIR, UV-Vis spectroscopy, FESEM, TEM, and EDS. X-ray diffraction confirmed the monoclinic formation of CuO with an average crystallite size of 16.68 nm, while FTIR spectra showed Cu-O lattice vibrations and relevant functionalities of phytochemical capping. Optical studies exhibited a unique absorption peak at 350 nm and direct band gap of 2.7 eV that indic... More >

The present study delves into an eco-friendly and scalable method for creating zinc oxide (ZnO) nanoparticles using extract from Piper betle leaves. By harnessing the natural bio-reductive and capping abilities of the phytochemicals found in P. betle, the ZnO nanoparticles formed a hexagonal wurtzite structure, with an average crystallite size of about 20.3 nm, as confirmed by XRD analysis. The UV–Visible spectroscopy results showed a notable blue shift in absorption, leading to an estimated band gap of 4.10 eV, which is linked to quantum confinement effects. FTIR spectra confirmed the presence of biomolecules on the surface, while SEM imaging displayed quasi-spherical polycrystalline part... More >