Synthesis and characterization of nanocrystallined zirconia by hydrothermal method

Nano-size zirconia was prepared by hydrothermal method using commercial zirconia powder. XRD study showed that the nano-size zirconia has an appreciable amount of monoclinic phase. The nano-size zirconia obtained has average particle size in the range of 24–36 nm. The SEM of nano-sized zirconia showed diminutively different morphology than the commercial one. TEM micrographs shows well-dispersed monoclinic ZrO2 nanoparticles. The UV–DRS absorption spectrum of alkali treated zirconia showed an absorption peak at 235 nm (5.3 eV). The FTIR spectrum showed the purity of treated zirconia.