Synthesizing method of broadband-excited white-light LED (Light Emitting Diode) fluorescent powder

The invention relates to a synthesizing method of broadband-excited white-light LED (Light Emitting Diode) fluorescent powder. The synthesizing method comprises the following steps of: preparing solutions through raw materials, namely, Sr(NO3)2, (NH4)6Mo7O24.4H2O and Eu2O3; adding nitric acid to the Eu2O3 solution until Eu2O3 is reacted completely to obtain Eu; dropping Eu to the Sr(NO3)2 solution; adding nitric acid to adjust the pH of the solution to be 2 to 5; dropping the (NH4)6Mo7O24.4H2O solution into the Sr(NO3)2 solution; uniformly agitating; feeding a sampled solution into a reaction kettle; transferring the reaction kettle into an oven to react; washing the reaction product with ethyl alcohol and deionized water; drying through the oven; transferring the dried sample into a muffle furnace; annealing to obtain the target product, namely, white-light LED fluorescent powder SrMoO4:Eu3. The fluorescent powder prepared by the synthesizing method is relatively high in broadband excitation perfo