Hydrothermal Synthesis and Luminescence Properties of CePO4∶Tb Flower-Like Clusters
BAO Jin-rong1, ZHU Xiao-wei2, JIN Shu-xin1, Lü Yue1, XIONG Li-chao1, LI Chang-fu1, LI Wen-xian1
1. The College of Chemistry &Chemical Engineering, University of Inner Mongolia, Huhhot 010021, China 2. Medical College of Inner Mongolia, Huhhot 010110, China
Abstract：Tb3+-doped CePO4 flower-like clusters were hydrothermally synthesized without using any template or surfactant by varying the reactant Tb3+ cation concentration. It was observed that the flower-like clusters were composed by nanowires with a diameter of about 80～90 nm and lengths up to 1 μm. The structures, morphologies, sizes and luminescence properties of the products were studied by X-ray powder diffraction (XRD), field-emission scanning electronic microscopy (FE-SEM), and luminescence spectra. With the reactant Ce3+/Tb3+ molar ratio of 0.850∶0.150, the uniform flower-like clusters were actually composed of a self-assembly of the oriented nanowires through an Tb3+-induced in the excessive PO3-4. It was found that the reactant Ce3+/Tb3+ molar ratio and phosphoric acid played key roles in the morphology control of the product. A possible formation mechanism for the flower-like morphology was also proposed. The luminescence properties of CePO4∶Tb flower-like cluster were performed, indicating that the strongest emission intensity was reached with 0.850∶0.150 molar ratios of Ce3+/Tb3+.
[1] Mondejar S P, Kovtun A, Epple M. J. Mater. Chem., 2007, 17(39): 4153. [2] Sohn K S, Choi Y Y. J. Electrochem. Soc., 2000, 147(6): 2375. [3] Riwotzki K, Meyssamy H, Schnablegger H, et al. Angew. Chem. Int. Ed., 2001, 40(3): 573. [4] Kang Y, Kim E J, Lee D Y, et al. J. Alloys Compd., 2002, 347(1-2): 266. [5] Lenggoro I W, Xia B, Mizushima H, et al. Mater. Lett., 2001, 50(2-3): 92. [6] Rambabu U, Munirathnam N. R, Prakash T L, et al. Mater. Chem. Phys., 2002, 78(1): 160. [7] Li Q, Yam V W W. Angew. Chem. Int. Ed., 2007, 46(19): 3486. [8] Rajesh K, Mukundan P, Krishna Pillai P, et al. Chem. Mater., 2004, 16(14): 2700. [9] Xing Y，Li M，Davis S，et al. J. Phys. Chem. B, 2006, 110(3): 1111. [10] Mai H X, Zhang Y W, Sun L D, et al. Chem. Mater., 2007, 19(18): 4514. [11] Fang Y P, Xu A W, Song R Q, et al. J. Am. Chem. Soc., 2003, 125(51): 16025. [12] Yan R X, Sun X M, Wang X, et al. Chem. Eur. J., 2005, 11(7): 2183. [13] Yang M, You H P, Song Y H, et al. J. Phys. Chem. C, 2009, 113(47): 20173. [14] Komban R, Beckmann R, Rode Se, et al. Langmuir., 2011, 27(17): 10174. [15] Wang X, Li Y D. Angew. Chem. Int. Ed., 2002, 41(24): 4790. [16] Yan Z G, Zhang Y W, You L P, et al. J. Cryst. Growth., 2004, 262(1-4): 408. [17] Yang M，You H P，Huang Y J，et al. Cryst. Eng. Comm., 2010, 12: 2865. [18] Zhang F, Wong S. Stanislaus. ACS Nano, 2010, 4(1): 99. [19] Kitsuda Mami，Fujihara Shinobu. J. Phys. Chem. C, 2011, 115: 8808.
