Synthesis of Geikielite (MgTiO3) Nanoparticles via Sol-Gel Method and Studies on Their Structural and Optical Properties

摘要

The geikielite (MgTiO3) ceramic nanoparticles with different compositions were synthesized by sol-gel method (termed as MT00, MT37, MT55, MT73, and MT100). The structural properties and average crystallite size were analysed. The results of Fourier transform infrared spectra for geikielite nanoparticles showed the presence of functional groups of -O-Ti-O-Mg-O-. The specific surface area of prepared nanoparticles surface area analyzer, which varied from 99 to 142 m(2)g(-1) for different compositions. The geikielite nanoparticles were transparent in the visible spectra region and revealed a sharp absorption edges at different wavelengths between 363 and 376 nm. The energy bandgap values of the nanostructured geikielites were investigated from the observed wavelength (i.e., from 3.38 to 3.53 eV). From the above observation, it can be concluded that the geikielite nanoparticles are the potential candidate for technological applications like dye synthesis solar cells and textiles for production.