Biosynthesis of Ag doped MgO-NiO-ZnO nanocomposite with Ocimum Basilicum L extract and assessment of their biological and photocatalytic applications

Abstract

In this project, Ag/doped MgONiO-ZnO nanocomposite (NCs) was synthesized by green chemistry method with Ocimum Basilicum L. (OBL) seeds extract for the first time. Phytochemicals present in plant extracts have oxidizing properties and can reduce existing metal ions into the nanocomposite. The successful synthesis of NCs was confirmed by various analyses. The UV–Vis peak at 335 nm confirmed the effective synthesis of NCs. The XRD spectrum illustrated the crystallite structure of NCs with a size of about 33 nm. Using FESEM/PSA/EDX analysis, the morphology, size, and purity of the NCs were examined, revealing a spherical shape with an average size of about 30 to 44 nm. The degradation efficiency of Rhodamine B dye (RhB) solution by NCs was reduced to 90 % under UV light after almost 100 min. According to the result of the MTT test, it was found that the synthesized NCs showed an acceptable killing effect on cancer B16F0 cells with IC50 amount about 490.2 μg/mL, while they did not cause the death of normal L929 ells.