Cow Urine Mediated Synthesis of CeO2 Nanoparticles for Display and Latent Fingerprints Application

The CeO2 nanoparticles were synthesized using a combustion method using cow urine as fuel. The structural and morphological properties of CeO2 nanoparticles were characterized by Powder X-ray diffraction (PXRD), Diffuse reflectance spectroscopy(DRS), Photoluminescence (PL), and TEM. PXRD results confirm the formation of the cubic phase. The energy band gap determined by Kubelka-Munk was found to be 3.1eV. The Commission Internationale de I’Eclairage (CIE) coordinates were located in the blue region. The synthesized CeO2 nanoparticles can be used to develop latent fingerprints.