The invention discloses a rapid preparation method of a Ho:Sc2O3 nano-
crystal powder. The rapid preparation method of the Ho:Sc2O3 nano-
crystal powder comprises the steps of, firstly, preparing cationsalt solution, specifically, dissolving
scandium oxide and
holmium oxide into
nitric acid to obtain
scandium oxide solution and
holmium oxide solution, uniformly mixing the
scandium oxide solution and the
holmium oxide solution to obtain the cation
salt solution; secondly, preparing precipitant solution, specifically, preparing
ammonium bicarbonate solution and at the meantime, adding in ammoniumhydroxide, then adding in
ammonium sulfate dispersant to obtain the precipitant solution; thirdly, performing atomizing and
precipitation processes, specifically, through a
peristaltic pump, sprayingthe precipitant solution into the cation
salt solution inside an
ultrasonic device via a pneumatic atomizing
nozzle to obtain a Ho:Sc2O3
precipitation precursor; fourthly, performing
precipitation, filtering and washing processes; fifthly, calcinating the precipitation precursor to obtain the Ho:Sc2O3 nano-
crystal powder. The prepared Ho:Sc2O3 nano-crystal powder is high in purity and dispersionand narrow in size distribution and reaches an average grain size of around 100 nm.