In this research, nano praseodymium cerate ceramic powders were synthesized by a new and easy method. To find the optimal conditions for the synthesis of nanopowders, the influence of some fabrication parameters was examined. The findings of this work represented that the grain size and morphology of nano praseodymium cerate ceramic powders were notably affected through the examined parameters. The as-prepared praseodymium cerate were characterized by FT-IR, FESEM, EDS and XRD. The obtained findings showed that with the aid of this new method can be produced relatively uniform sphere-like praseodymium cerate nanostructures. In addition, the photocatalyst performance of as-synthesized praseodymium cerate was checked through removal of the toxic organic contaminant under visible light.