硅酸盐学报2012，Vol.40Issue(3)：345-350,6.
LaFeO_3纳米带的制备及其光催化性能
Fabrication and Photocatalytic Properties of LaFeO_3 Nanobelts
摘要
Abstract
The PVP [poly（vinyl pyrrolidone）]/[La（NO3）3＋Fe（NO3）3] composite microbelts were fabricated via the combination of a sol–gel method with electrospinning.The LaFeO3 nanobelts were obtained by the calcination of the fabricated composite microbelts at 800 ℃ for 8 h.The resultant samples were characterized by thermogravimetric–differential thermal analysis,X-ray diffractometry,scanning electron microscope,energy dispersive spectroscopy and transmission electron microscope,respectively.The photocatalytic activity of LaFeO3 nanobelts and LaFeO3 nanofibers were investigated by using rhodamine B as a degradation agent.It was found that the surface of PVP/[La（NO3）3＋Fe（NO3）3] composite microbelts was smooth.The width and thickness of the composite microbelts were（17.5 ± 1.5） μm and 610 nm,respectively.The LaFeO3 porous nanobelts were orthorhombic with the space group of Pn＊a.The width and thickness of LaFeO3 nanobelts were（5.1 ± 1.4） μm and 100 nm,respectively.It was revealed that the photocatalytic activi-ties of LaFeO3 nanobelts were better than that of LaFeO3 nanofibers,and the degradation rate of rhodamine B could reach 89.6% after the reactive mixture was illuminated by ultraviolet for 180 min.关键词
静电纺丝/铁酸镧/纳米带/光催化Key words
electrospinning/lanthanum iron oxide/nanobelts/photocatalysis分类
化学化工引用本文复制引用
孙霞,董相廷,王进贤,肖瑞祯,刘桂霞..LaFeO_3纳米带的制备及其光催化性能[J].硅酸盐学报,2012,40(3):345-350,6.基金项目
国家自然科学基金 （）
教育部博士点基金（20102216110002）,教育部科学技术研究重点项目（207026）资助 （）
吉林省科技发展计划重大项目 （）
