分别以硝酸镧、多聚磷酸和磷酸二氢钠为原料,在无任何添加剂和模板的条件下,采用水热法分别合成微纳米球和纳米棒两种形貌的磷酸镧.通过场发射-扫描电子显微镜(FE-SEM),X射线衍射(XRD),红外光谱(FTIR)和荧光光谱(PL)等测试手段对以上不同形貌的样品的相结构以及微观形貌进行表征.FE-SEM测试结果表明:当以多聚磷酸为磷源时,在酸性条件下可以得到平均粒径约为2μm左右的磷酸镧微球;而当以磷酸二氢钠磷源时,在酸性条件下则可以得到纳米棒;两者的分散性良好.XRD测试结果表明:两种不同形貌的样品均为单斜晶系结构.荧光光谱分析可知:Eu3+的掺杂浓度相同时,球状样品的发光强度远大于棒状样品.
参考文献
| [1] | 张新奇,俞建长,张国清,胡红民.Eu3+掺杂六方相-维纳米磷酸铈发光材料的合成与表征[J].中国稀土学报,2008(01):28-31. |
| [2] | 杨丽格,周泊,陆天虹,蔡称心.稀土磷酸盐纳米发光材料的研究进展[J].应用化学,2009(01):1-6. |
| [3] | Murray C B;Norris D J;Bawendi M G .Synthesis and characterization of nearly monodisperse CdE(E =sulfur,selenium,tellurium)semiconductor nanocrystallites[J].American Chemical Society,1993,115(19):8706. |
| [4] | Kane R S;Cohen R E;Silbey R .Theoretical study of the electronic structure of PbS nanoclusters[J].Physical Chemistry,1996,100(19):7928. |
| [5] | Song H W;Yu L X;Lu S Z;Wang T Liu Z X Yang L M .Remarkable differences in photoluminescent properties between LaPO4:Eu one-dimensional nano-wires and zero-dimensional nanoparticles[J].Applied Physics Letters,2004,85:470. |
| [6] | Yu LX;Song H W;LuSZ;LiuZX YangLM KongX G .Luminescent properties of LaPO4:Eu nano-particles and nanowires[J].Journal of Physical Chemistry B,2004,108(43):16697. |
| [7] | Ruoxue Van;Xiaoming Sun;Xun Wang;Qing Peng;Yadong Li .Crystal Structures,Anisotropic Growth,and Optical Properties:Controlled Synthesis of Lanthanide Orthophosphate One-Dimensional Nanomaterials[J].Chemistry: A European journal,2005(7):2183-2195. |
| [8] | Zhang Y W;Yan Z G;You L P;Si R Yan C H .General synthesis and characterization of mono-crystalline Lanthanide orthophosphate nanowires[J].European Journal of Inorganic Chemistry,2003,22:4099. |
| [9] | Yue-Ping Fang;An-Wu Xu;Rui-Qi Song;Hua-Xin Zhang;Li-Ping You;Jimmy C. Yu;Han-Qin Liu .Systematic Synthesis and Characterization of Single-Crystal Lanthanide Orthophosphate Nanowires[J].Journal of the American Chemical Society,2003(51):16025-16034. |
| [10] | Rambabu U;Buddhudu S .Optical properties of LnPO4:Eu3 +(Ln =Y,La and Gd)powder phosphors[J].Optical Materials,2001,17:401. |
| [11] | Rambabu U.;Kale BB.;Buddhudu S.;Amalnerkar DP. .Optical properties of LnPO(4): Tb3+ (Ln = Y,La and Gd) powder phosphors[J].Materials Chemistry and Physics,2001(1):1-6. |
| [12] | Meyssamy H.;Kornowski A.;Naused S.;Haase M.;Riwotzki K. .Wet-chemical synthesis of doped colloidal nanomaterials: Particles and fibers of LaPO4 : Eu, LaPO4 : Ce, and LaPO4 : Ce,Tb[J].Advanced Materials,1999(10):840-844. |
| [13] | 杨丽格;周泊;陆天虹 .不同晶型磷酸铈纳米材料的水热合成及荧光性能[J].功能材料,2007,5:12. |
| [14] | Lucas S;Champion E;Bemaehe-Asscllant D;Leroy G .Rare earth phosphate powde RePO4 @nH2O(Re =La,Ce or Y)Ⅱthermal behavior[J].Journal of Solid State Chemistry,2004,177:1312. |
| [15] | Di W H;Wang X J;Zhao X X .A new sol-gel route to synthesize YPO4:Tb as a green-emitting phosphor for the plasma display panels[J].Chin Letters,2005,34:4. |
| [16] | L ZHU;X Liu;X Liu .Facile sonochemical synthesis of CePO_4:Tb LaPO_4 core shell nanorods with highly improved photoluminescent properties[J].Nanotechnology,2006(16):4217-4222. |
| [17] | Breitinger D K;Brehm G;Mohr J;Colognesi D Parker S F Stolle A Pimpl H Th Schwab R G .Vibrational spectra of synthetic crandallite-type minerals-optical and inelastic neutron scattering spectra[J].Journal of Raman Spectroscopy,2006,37:208. |
| [18] | Hezel;Ross S D .Vibrational spectra of monazite-type rare-earth orthophosphates[J].Spectrochimica Acta Part,1966,22:1949. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%