Zr-doped TiO2 was prepared from TiOSO4 and ZrOCO3 by a co-precipitation method using NH3H2O as the precipitation agent. The Zr-doped TiO2 was characterized by X
Y0.95-xEu0.05VO4:x Bi3+(x = 0, 0.02, 0.04,0.06, 0.08, and 0.10 mol) six photoluminescence films were deposited on glass substrates by sol–gel spin-coating meth