#co-precipitation method

[oaresearchpaper]

The present study was carried out to synthesize magnesium oxide nanoparticles (MgONPs) through the co-precipitation method using Magnesium chloride as a precursor for the photodegradation of Rhodamine B dye (RhB) and the antibacterial studies against E. coli. The as-synthesized nanoparticles are characterized by XRD, FT-IR, TGA, DLS, SEM, and PL. XRD displayed the crystallinity of MgONPs with an average crystalline size of 29nm. Morphology of MgONPs exhibited a rod-like shape. Photocatalytic activity of MgONPs was witnessed by the quick degradation of the organic dye RhB on exposure with both sunlight and UV irradiation and the antibacterial activity of MgONPs was found effect against E. coli at the concentrations ranging from 40 – 100µg/ml respectively. The maximum ZOI (2.6) was observed at the concentration of 100µl. Furthermore, the MgONPs could be used in the remediation of polluted water and for biomedical applications.

[oaresearchpaper]

During the last decade green synthesized cerium oxide nanoparticles (CeO2 NPs) attracted remarkable interest in various fields of science and technology. Cerium oxide nanoparticles have been used in a number of non-medical products over the years. Synthesis of cerium oxide (CeO2) nanoparticles was studied by new and simple co-precipitation method. The crystalline structure, surface morphology, phases, functional groups and size were examined by assorted characterization techniques like scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), Thermo gravimetric analysis (TGA) and fluorescence spectroscopy studied were investigated. Furthermore, the antibacterial properties of CeO2 nanoparticles were investigated by their bacterial activity against four bacterial strains using the agar well diffusion method.