Investigation of TiO2 Nanoparticles: Thermal Kinetics and Gamma Radiation Effects

This paper is part of a research project to develop natural dye-sensitized solar cells. The behavior of surface water, especially the adsorption and dissociation characteristics, is a key to understanding and promoting photo-catalytic and biomedical applications of titanium dioxide materials. Using Thermal Gravimetry Analysis, we study the interaction between water and TiO2 nanoparticles surfaces that are of interest to experiments calculations. The results show that TiO2 nanoparticles surfaces demonstrate water dissociation observed on the surface and in interlayer space. It is noticed that at 600 oC the mass loss reaches the value 1.1% after sintering and after irradiation. Gamma irradiation exhibited improved thermal stability of TiO2 nanopowder to be good dye absorber.