title: [Controlled syntheses and photoluminescence characterization of monoclinic cerium orthophosphate with nanostructure].
abstract: The nanostructured CePO4 with monoclinic phase was controllably synthesized through a low temperature hydrothermal route by varying the reactant PO4(3-)/Ce(3+) 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 PO4(3-)/Ce(3+) 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 PO4(3-)/Ce(3+) molar ratio was lower, CePO4 nanorods were obtained, while the PO4(3-)/Ce(3+) 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.
authors.affiliation: The College of Chemistry & Chemical Engineering, University of Inner Mongolia, Huhhot 010021, China. nmbaojinrong@yahoo.cn
authors.forename: Jin-Rong
authors.initials: JR
authors.lastname: Bao
authors.forename: Xiao-Wei
authors.initials: XW
authors.lastname: Zhu
authors.forename: Li-Si
authors.initials: LS
authors.lastname: Wei
authors.forename: Jun-Wen
authors.initials: JW
authors.lastname: Peng
authors.forename: Wen-Xian
authors.initials: WX
authors.lastname: Li