Synthesis and Characterization Titanium Dioxide (TiO2) Doped Vanadium(V) Using Solid State Method

Abstract

TiO₂ Anatase activities should be increased from the UV to the visible light photocatalytic activity of TiO₂ to increase anatas. One efforts to optimize TiO₂ anatase activity is doping by using dopant vanadium(V). Synthesis method which is used in this research is a solid reaction method. The steps being taken in this methods include grinding and heating at high temperatures. Dopant concentrations of vanadium(V) which are used in the research was 0.3%, 0.5% and 0.7%. and the characterization used is X-ray diffraction and UV-Vis Diffuse Reflectance Spectroscopy. The result shows that there are a changing of particle size, band gap energy, and absorption of TiO₂ anatas wavelength because of dopan vanadium(V) addition. While TiO₂’s structure does not change. The crystal sizes of each TiO₂ without doping, V-TiO₂ 0,3%, 0,5% and 0,7% are 53.21 nm, 47.67 nm, 79.65 nm dan 68.99 nm.  Band gap energy of each TiO₂ without doping, V-TiO₂ 0,3%, 0,5% dan 0,7% are 3.309 eV, 3.279 eV, 3.270 eV and 3.259 eV. While wavelength absorption of each TiO₂ without doping, V-TiO₂ 0,3%, 0,5% and 0,7% are 374.9 nm, 378.4 nm, 379.5 nm and 380.8 nm.

Keywords: Synthesis, titanium dioxide, vanadium(V), solid state method