Effect of Microwave with Ultrasonic on the Morphology and Particle Size of (Y,Eu)2O3 Precursor

The (Y,Eu)(2)O-3 precursor prepared by microwave with ultrasonic-assisted co-precipitation is superior to the one prepared by co-precipitation of conventional approach as well as co-precipitation assisted by microwave. The effect of preparation conditions on the morphology and particle size of (Y,Eu)(2)O-3 precursor was completely investigated in this study. The ideal conditions were optimized as 0.25M Ln(3+) ions concentration, 80 degrees C reaction temperature, 90 minutes reaction time and 0 minute ageing time. Consequently, the (Y,Eu)(2)O-3 precursor in the needle-like shape with average size of 0.25 mu m in diameter was obtained. The possible mechanism was also presented.