Novel Solvothermal Route for the Synthesis of Pure Ultrafine Anatase Nanoparticles

Document Type: Research Paper



Titanium oxide nanoparticles were synthesized via a solvothermal treatment of titanium
isopropoxide in the presence of L-lysine (lysine). The prepared nanostructures characterized by
atomic force microscopy (AFM), X-ray diffraction (XRD), thermogravimetric analysis (TGA),
diffraction scanning calorimetry (DSC), scanning electronic microscopy (SEM), transmission
electron microscopy (TEM) and photoluminescence (PL) spectroscopy. Results exhibited
that peptization in the absence of the additive led to the non-uniform (from nano to micro
size) anatase particles, while well-dispersed anatase nanoparticles were obtained in the small
range from titania-lysine precursor. Well-organizing the growth of anatase particles during the
calcinations can be attributed to initial amorphous phase of the as-synthesized lysine sample.