Characterization of Nanocrystalline Nickel Doped Titanium -Dioxide, Synthesized by Co Precipitation Method.

The recent trend in the field of semiconducting technology is the fabrication of nanoscaled semiconductor
devices which have diversified applications in various fields of science and technology. In the present study
three different molar concentrations of Ni-doped Tio2 nanoparticles were synthesized using co –precipitation
route. The co –precipitation method, is cost effective and versatile method for the preparation of the above
said nanoparticles.
X-ray powder diffraction study reveals that all the prepared samples of pure Tio2 and nickel doped Tio2 are
crystalline structure. The average crystalline sizes of the preparated samples were calculated using Debye –
scherrer formula and is found to be 19.6 nm.The Particle size for Nickel dopant Tio2 nanoparticles was
found to be between 20 nm to 21 nm. The FTIR can be used for the determination of various functional
groups present in the synthesized nanoparticles. The predominant peaks confirmed the synthesized
nanoparticles to be Tio2 .The nickel doping also confirmed by FTIR studies. The UV blocking property is
reported using UV-visible spectroscopic studies. The energy gap is found to be 3.57ev for pure Tio2 and it
slowly increased to 4.04ev with increase in Nickel content. The surface morphology of the synthesized
powders has been reported using SEM and TEM studies. The particle sizes almost coincided with the
particle size calculated by Debye –scherrer. The effects of metal dopant on the structural and morphological
properties have been reviewed.