Abstract
Titania nanoparticles were synthesized using the sol-gel method. Nano-sized Ce particles were doped into nanotitania using the metal sol method. As-synthesized TiO2 and Ce doped TiO2 nanoparticles were characterized by x-ray diffraction (XRD), scanning electron microscopy (SEM), UV-visible spectroscopy and photoluminescence (PL) spectroscopy. Photocatalytic degradation of methylene blue by undoped and ceria-doped titania was investigated under visible light. The dye degradation capabilities of nano-sized Ce-TiO2 catalysts were found to be superior to undoped TiO2 nanoparticles. The higher photoactivity of TiO2 can be ascribed to the effect of Ce dopants on band gap narrowing, and acting as electron traps on the Ce-TiO2 surface. Dye degradation studies show that nanotitania doped with Ce is suitable for higher photocatalytic activity under visible light.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
