The invention relates to a
rare earth-doped nanometer spherical TiO2 up-conversion compound and a preparation method thereof and belongs to the field of nanometer up-conversion
luminescence compounds.The
rare earth-doped nanometer spherical TiO2 up-conversion compound refers to TiO2:X%M, Y%Yb, Z%N, wherein M refers to one or more of Y, Sc, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu, N refers to one or more of light metals, and
molar ratios of X, Y and Z satisfy the conditions that X is not less than 1 and not more than 1.8, Y is equal to 10, and Z is not less than 0 and is not more than 20.The
rare earth-doped nanometer spherical TiO2 up-conversion compound has the advantages that the rare earth-doped nanometer spherical TiO2 up-conversion compound, a nanometer spherical up-conversion
luminescence material, is small in size and can be applied to the field of bioimaging; the nanometer spherical up-conversion
luminescence material is beneficial to screen
coating, so that resolution ratio of a display screen is increased greatly; the nanometer spherical up-conversion luminescence material is of little biotoxicity, stability and long luminescent time like other nanometer luminescence materials.