Synthesis and Charecterization Studies of Nano Tio2 Prepared via Sol-Gel Method

Abstract

Nanoparticles of titanium dioxide doped with Fe2+ ions have been synthesized via sol-gel technique using Titanium tetraisopropoxide (TTIP) and ferrous sulphate as a precursors. The synthesized nanopowders were characterized by Powder X-ray Diffraction (PXRD), Scanning Electron Microscope (SEM), Fourier Transform Infrared (FTIR), Ultraviolet Visible (UV-Vis) and Photoluminescence (PL) Spectroscopy. PXRD pattern indicates the presence of pure crystalline anatase phase TiO 2 with average crystallite size of 14 nm. FTIR spectra showed the vibrational bands of Ti-O networks. The morphology of the as prepared samples and chemical constituents of the nanoparticles studied using SEM and EDAX analysis. From the UV-Vis spectra and PL spectra the optical properties of TiO 2 were studied and discussed.

Evaluation of performance characteristics of nano TiO2and TiO2-ZnO composite for DSSC applications and electrochemical determination of potassium ferrocyanide using cyclic voltammetry

“…where D denotes the average crystallite size (nm), λ gives the x-ray wavelength (nm), θ represents Bragg's angle (°), β signifies the line broadening in radians, and the constant is denoted by K (0.90). The crystallite size of particles of TiO 2 was enumerated as 11.65 nm, which is lower than the data reported by Perumal et al [24] of 14 nm. This may be due to the higher calcination temperature (550 °C) utilized by Perumal et al [24], resulting in narrow XRD peaks.…”

“…The crystallite size of particles of TiO 2 was enumerated as 11.65 nm, which is lower than the data reported by Perumal et al [24] of 14 nm. This may be due to the higher calcination temperature (550 °C) utilized by Perumal et al [24], resulting in narrow XRD peaks. The TiO 2 -ZnO composite particles were semi-crystalline, and the average crystallite size of the composite was computed to be 30.35 nm which was greater than the values presented by Chung et al [9], which was 22 nm.…”

“…The sol-gel approach was employed to synthesize TiO 2 nanoparticles; the procedure is adopted from Perumal et al [24]. The precursors, titanium tetra butoxide, and methyl alcohol with a 1:4 molar ratio were taken in a beaker and placed on the magnetic stirrer.…”