Photocatalytic Activity of Titanium Dioxide Nanoparticles Prepared by Eco-Friendly Chemical Method

Abstract

In this work, the effect of structure on the photocatalytic activity of titanium dioxide nanoparticles for the degradation of methylene blue dye in aqueous solution was introduced. The titanium dioxide nanoparticles were prepared by two different methods (solvothermal and dc reactive sputtering) with three different structures (anatase only, anatase:rutile with 2:1 and 1:1). According to the obtained results, the TiO₂ nanoparticles prepared by solvothermal method showed better photocatalytic activity than the other samples prepared by dc reactive sputtering. The solvothermal method can be described as a green method to prepare nanoparticles as photocatalyst for environmental and biomedical applications.