White body-color (Y, Gd)BxV1- xO4-x :Eu3 + phosphors were prepared by coprecipitation reaction. Under VUV excitation at 147 nm, the red emission colorimetric purity of (Y, Gd)BxV1- xO4-x :Eu3 + phosphor is much better than that of commercial PDP (plasma display panels) phosphor (Y, Gd)BO3:Eu3+ . But its relative emission intensity is only about 90% of the commercial phosphor.