Preparation of Rare Earth Oxide Nanofibers by Electrospinning

In this paper, the nanofibers of dysprosium oxide and samarium oxide were prepared by electrospinning. The experimental conditions of spinnability of rare earth oxides of nanofibers were investigated. The morphology of precursors and final products was observed by SEM. The results showed that: Under the conditions of voltage of 15 kV, injection rate of 0.05 mm·min^-1, humidity of 50%, needle size of 21, receiving distance of 15 cm and receiving rate of 80 r/min, When using the system of 11 g PVP+15 mL ethanol+4.6 mL samarium chloride as the electrospinning solution, the fibrous of samarium oxide precursor with a smooth morphology and a diameter of about 390 nm can be obtained. After calcination at 600 ℃, nanofibrous of samarium oxide with a diameter of about 100 nm can be obtained. When the system of 9.5 g PVP+15 mL ethanol+4.79 mL dysprosium chloride is used as electrospinning solution, the smooth precursor of dysprosium oxide fibrous with a diameter of 200 nm~400 nm can be obtained. After calcination at 600 ℃, the dysprosium oxide nanofiber with a diameter of about 50 nm can be obtained.