Muthuchudarkodi R.R. and Ashli A.

ABSTRACT

The objective of this paperis to report a non toxic, potential green synthetic method for preparing cerium oxide nanoparticles from ammonium ceric sulphate using Emblica officinalis fruit extract as a stabilizing agent. Synthesised nano CeO2 were characterized using UV-Vis and PL spectroscopic techniques, XRD and SEM. Both the undoped and Ti doped CeO2 nanoparticles absorb at 253 nm and emit at a wavelength of 352 and 350 nm respectively .The spherical shaped undoped and doped nanoparticles were found to be 23.82 and 24.82 nm in size respectively using Debye-Scherrer’s Formula.Photocatalytic degradation of Safranin dye under UV-irradiation was also investigated. Undoped and Ti ion doped cerium oxide nanoparticles possess photocatalytic activity while the latter shows enhanced degradation efficiency percentage and can be used as effective photocatalyst. Keywords : CeO2 nanoparticles, Green synthesis,Emblica officinalis, Photodegradation.