摘要
采用静电纺丝技术制备了PVP/[Y(NO3)3+Al(NO3)3]复合纳米纤维,研究了反应体系的最佳组成,系统地讨论了静电纺丝工艺的影响,获得了最佳制备条件.将PVP/[Y(NO3)3+Al(NO3)3]复合纳米纤维在900℃焙烧10 h,获得了晶态的YAG纳米纤维.XRD分析表明,YAG纳米纤维属于立方晶系,空间群为Ia3d.SEM分析表明,PVP/[Y(NO3)3+Al(NO3)3]复合纳米纤维表面光滑,平均直径约为175 nm;YAG纳米纤维的直径约为75 nm,长度大于100μm.该技术可以用来制备其他稀土石榴石型化合物纳米纤维.
PVP/[ Y（ NO3 ）3 ＋ Al （NO3 ）3] composite nanofibres were fabricated by electrospinning. The optimal composition of the reaction system was investigated. The influences of electrospinning technology and experimental parameters on electrospinning process were systematically studied, and the optimal preparative conditions were obtained. Furthermore, nanocrystalline YAG nanofibers were synthesized by calcination of the as-prepared composite nanofibres at 900℃ for 10 h. XRD results revealed that PVP/[ Y（ NO3 ）3 ＋ Al （NO3 ）3] composite nanofibres were amorphous in structure, and YAG nanofibers were cubic in structure with space group Ia3d. SEM analysis indicated that the surface of the PVP/[ Y（ NO3 ）3 ＋ Al （NO3 ）3] composite nanofibres was smooth, and the mean diameter of the composite nanofibres was ca. 175 rim. YAG nanofibers were of ca. 75 nm in diameter, and the length was greater than 100 μm. This method can be applied to preparation of other rare earths garnet-typed compounds nanofibers.
出处
《应用科技》
CAS
2008年第6期52-56,共5页
Applied Science and Technology
基金
吉林省科技发展计划基金资助项目(20060504
20040125)
吉林省教育厅科技计划基金资助项目(2005109
2006JYT05)
吉林省环保局科技基金资助项目(2006-24)
