Effect of Li(I) and TiO₂ on the Upconversion Luminance of Pr:Y₂SiO₅ and Its Photodegradation on Nitrobenzene Wastewater

Figure 3

XRD patterns of samples. (a) Commercial anatase TiO₂; (b) Li,Pr:Y₂SiO₅; (c) TiO₂/Li,Pr:Y₂SiO₅.