| 光谱学与光谱分析 |
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| 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 |
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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+.
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Received: 2012-05-20
Accepted: 2012-09-18
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Corresponding Authors:
BAO Jin-rong
E-mail: jinrongbao@imu.edu.cn
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