光谱学与光谱分析 |
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Controlled Syntheses and Photoluminescence Characterization of Monoclinic Cerium Orthophosphate with Nanostructure |
BAO Jin-rong1, ZHU Xiao-wei2*, WEI Li-si2, PENG Jun-wen2, 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 The nanostructured CePO4 with monoclinic phase was controllably synthesized through a low temperature hydrothermal route by varying the reactant PO3-4/Ce3+ molar ratio. The structures, morphologies, sizes and luminescence properties of the products were studied by XRD, FE-SEM, DSC-TG and photoluminescence spectra. With the PO3-4/Ce3+ molar ratios increased, the synthesis temperature of as-synthesized monoclinic CePO4 was decreased, and the morphologies underwent the evolution from the rod-like nano-structures to the flower-like nanoclusters. When the PO3-4/Ce3+ molar ratio was lower, CePO4 nanorods were obtained, while the PO3-4/Ce3+ molar ratio was higher, the monoclinic CePO4 flower-like nanoclusters were crystallized. The photoluminescence spectrum showed that the CePO4 nanorods exhibit better photoluminescent property than the CePO4 flower-like nanoclusters. With the cycling use of phosphoric acid, the low-cost preparation of CePO4 could be achieved.
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Received: 2010-06-12
Accepted: 2010-09-10
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Corresponding Authors:
ZHU Xiao-wei
E-mail: zxwtxwd@sina.com
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