Effect of temperature on optical, structural, morphological and antibacterial properties of biosynthesized ZnO nanoparticles

Nanomaterials can be produced by using nontoxic biological compounds that are both eco-friendly and economically viable. Temperature dependent ecological synthesis of ZnO nanoparticles was carried out with leaf extract Ocimum sanctum. An electron microscope study confirmed a temperature 400 oC optimal for the formation generated biosynthesizing nanoparticles. The normal crystalline size biosynthesized calculated via XRD analysis found to 18, 12 17 nm 300 - 500 oC, respectively. direct optical band gap energy deducted from Tauc approximation range 3.32-3.20 eV. In SEM analysis, depending on conditions, different morphologies also found. Functional groups incidence carboxyl amide in O. sanctum extract. analysed at room photoluminescence, broad visible is observed around 382 all samples. Furthermore, this determines synthesized provide antimicrobial efficacy against clinical strains Bacillus subtilis Staphylococcus aureus, as well standard Escherichia coli. Several fields, including cosmetics pharmaceuticals, benefit