Synthesis of Er2O3 blended CeO2 nanocomposites and investigation of their biomedical applications

A simple microwave irradiation technique has been used for the successful preparation of different weight percentages of Pure Er2O3, CeO2 nanoparticles (NPs), and CeO2 / Er2O3 heterostructured nanocomposites (NCs). X-ray diffraction (XRD), UV-Vis spectroscopy, Photoluminescence (PL), and Transmission electron Microcopy (TEM) were used to analyze the samples as they were prepared. X-ray diffraction patterns revealed wellcrystallized Er2O3 and CeO2 nanoparticles powders in the cubic system respectively. The bandgaps of E1, E7C2, E5C5, E2C7, and C1 were calculated to be 2.55 eV, 2.41 eV, 2.40 eV, 2.23 eV, and 1.42 eV, respectively. Er2O3 blended CeO2 Nanocompositesshows excellent activity against bacteria (Bacillus sp and E. coli) and fungal (aspergillus, and mucor), further breast cancer cell line to reveal cytotoxic activity in biomedical applications.