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

Figure 1

XRD patterns of Pr:Y₂SiO₅ doped different concentrations of Li(I). (a) 0%; (b) 2%; (c) 6%; (d) 8%; (e) 10%.