静电纺丝技术制备Y2O3：Eu^3＋纳米带及其发光性质  

Synthesis of Y_2O_3:Eu^(3+) Nanoribbons by Electrospinning and Their Luminescent Properties

作　　者：于长娟[1] 王进贤[1] 于长英[1,2] 董相廷[1] 刘桂霞[1] 

机构地区：[1]长春理工大学化学与环境工程学院,长春130022 [2]通化市第一中学,通化130041

出　　处：《无机化学学报》2010年第11期2013-2017,共5页Chinese Journal of Inorganic Chemistry

基　　金：国家自然科学基金(No.50972020);吉林省科技发展计划重大项目(No.20070402,20060504);教育部科学技术研究重点项目(No.207026);吉林省教育厅“十一五”科学技术研究项目(No.2007-45,2006JYT05);吉林省环保局科技项目(No.2006-24)资助

摘　　要：采用静电纺丝技术制备了PVP/[Y(NO3)3+Eu(NO3)3]复合纳米带,将其进行热处理,获得了Y2O3∶Eu3+纳米带。采用XRD、FTIR、SEM、TEM、荧光光谱等技术对焙烧后的样品进行了表征。结果表明:600℃焙烧即可获得Y2O3∶Eu3+纳米带,800℃时结晶更为良好,产物属于立方晶系。纳米带表面光滑,由平均直径为30nm的小颗粒紧密排列而成,为多晶结构。随着温度升高,纳米带宽度减小。焙烧800℃获得的Y2O3∶Eu3+纳米带的发光性质优于焙烧600℃的Y2O3∶Eu3+纳米带。与体材料相比,该纳米带的激发光谱Eu3+-O2-电荷迁移态(CTB)发生红移,发射光谱发生蓝移。PVP/[Y（NO3）3＋Eu（NO3）3] composite nanoribbons were prepared via electrospinning, and Y2O3∶Eu^3＋ nanoribbons were obtained by calcinated the relevant composite nanoribbons at 600 ℃ and 800 ℃. The samples were characterized by XRD, SEM, TEM, FTIR and fluorescence spectroscopy. Y2O3∶Eu^3＋ nanoribbons calcinated at 800 ℃ were more crystalline than that at 600 ℃. The structure of Y2O3∶Eu^3＋ nanoribbons was cubic with space group Ia3. The surface of Y2O3∶Eu^3＋ nanoribbons, which made up of Y2O3∶Eu^3＋ nanoparticles of ca. 30 nm in diameter closely side by side, was smooth. Y2O3∶Eu^3＋ nanoribbons was a polycrystalline structure and the width of which decreased with the increasing of calcination temperature. The luminescence properties of Y2O3 ∶Eu3 ＋ nanoribbons which were obtained by calcinated the relevant composite nanoribbons at 800 ℃ is better than 600 ℃. Compared with the bulk Y2O3∶Eu^3＋, the red shift of Eu^3＋-O^2- charge transfer band （CTB） in the excitation spectrum and the blue shift in the emission spectrum were observed.

关 键 词：Y2O3∶Eu3+ 纳米带 静电纺丝技术 稀土 光谱 

分 类 号：O614.322[理学—无机化学] O614.338[理学—化学]