Preparation and Characterization of TiO2 Nanoparticles by Green Method

In this study, we attempted to synthesize TiO2 nanoparticles utilizing titanium tetrachloride as a precursor and an aqueous extract of Sansevieria plant leaves. Atomic force microscopy (AFM), X-ray diffraction (XRD) pattern, scanning electron microscopy (SEM), Fourier transform infrared (FTIR) spectroscopy, and Brunauer-Emmett-Teller (BET) analysis were used to identify the synthesized TiO2 nanoparticles As per the surface topography, the average diameter of nanoparticles is considered as 67.73 nm. Debye-Scherrer equation was used to summarize the size of the crystals, the result shows that the average crystalline size for TiO2 sample was 15.2 nm. Few spherical, non-agglomerated particles could be seen in the SEM image of TiO2 nanoparticles. The appearance of the bending vibrations of Ti-O and Ti-O-Ti are shown at 688.59, 497.63, and 950.91 cm(-1), respectively, demonstrating the presence of TiO2 nanoparticles. BET equation was used to estimate the porosity and surface area for the prepared sample.