Enhanced Structural, surface morphological, optical and antibacterial activity of undoped and Ag doped BiFeO3 nanopowders
Keywords:
BiFeO3, Ag, XRD, FESEM, HRTEM, PLAbstract
Bi(1-x)Ag(x)FeO3 where X=0.05, 0.10, and 0.15 at. % multiferroic were prepared by solution combustion
method using urea as a fuel. The obtained product was calcined at the temperature of 550°C for 2 h in order to obtain
pure phase. The XRD study reveals that the synthesized nanopowders exhibit rhombohedral structure and also confirm
the decrease in the crystallite size as the dopant concentration increases. The FESEM micrograph shows that there are
uniform grain size distributions without any agglomeration. The EDAX analysis shows the presence of Bi, Fe, O and Ag
without any form of impurity peak. The PL shows high intense peak at 464 nm which is attributed for blue emission. The
antibacterial activity of BiFeO3: Ag nanopowders was found to be enhanced with increase in Ag doping level as it cause
a reduction in the grain size.
