Effects of Metal Ion Dopants on Absorption Spectra and Photoreactivity of TiO_2 Nanoparticles

摘要

This paper has systematically investigated the effects of 13 metal ion dopants on the photoreactivity and UV adsorption of TiO_2 nanoparticle. The pure and ion-doped TiO_2 nanoparticles were prepared using so-gel method. The absorption spectra of the TiO_2 nanoparticles were obtained using UV-Visible spectrometer. The wavelength of the absorption edge of TiO_2 was calculated using the tangent method.