Photocatalytic, Antimicrobial and Antifungal activities of Cerium oxide doped with Manganese dioxide nanoparticles using karanja leaves extract

In the present study, Cerium oxide doped with manganese dioxide nanoparticles were prepared using Karanja (Pongamia pinnata) leaves extract.The plant belongs to the Fabaceae family with common name karanja tree. The plant well distributed in Asia and Australia, used for treatment of skin diseases.This nanoparticles are utilised in photocatalytic dye degradation, anti-bacterial and anti-fungal activities. The synthesised nanoparticles were characterised and their activities are supported by powder X-ray diffractometer(PXRD),Energy-dispersiveX-ray spectroscopy(EDAX), Fourier transform Infra-red spectroscopy(FTIR), Scanning electron microscopy(SEM) and UV-Vis spectroscopy. The results showed that Cerium oxide doped with manganese dioxide nanoparticles using karanja leaves extract have zone of inhibition against Aspergillus niger and Aspergillus fumigatus in anti-fungal activity. It was also investigated that the extract have zone of inhibition against Staphylococcus aureus and E-coli in anti-microbial activity.