Periyat, P; Laffir, F; Tofail, SAM; Magner, E

2011

January

Rsc Advances

A facile aqueous sol-gel method for high surface area nanocrystalline CeO2

Published

()

ANATASE TIO2 PHOTOCATALYST CERIUM OXIDE DOPED CEO2 ZNO NANOPARTICLES PARTICLES POWDERS UREA

1

1794

1798

Thermally stable high surface area nanocrystalline CeO2 was synthesized via an aqueous sol-gel method using cerium hydroxide and urea as precursors. The CeO2 sol is yellow colored and absorbs light over the range 200-500 nm. Nanocrystalline CeO2 particles derived from the sol are spherical in shape and range from 9 to 13 nm in diameter. The CeO2 powder has a high surface area of up to 85 m(2) g(-1) and a band gap of 3.1 eV. The method of preparation is facile, utilises low cost reagents and can be performed on a large scale.

10.1039/c1ra00524c