Facile sonochemical synthesis and photoluminescent properties of lanthanide orthophosphate nanoparticles

Journal Article · Sun Feb 15 00:00:00 EST 2009 · Journal of Solid State Chemistry

OSTI ID:21212198

Cuicui, Yu; Min, Yu ^[1]; Chunxia, Li; Xiaoming, Liu; Jun, Yang; Piaoping, Yang ^[1]

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1. State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022 (China)

Uniform lanthanide orthophosphate LnPO{sub 4} (Ln=La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho) nanoparticles have been systematically synthesized via a facile, fast, efficient ultrasonic irradiation of inorganic salt aqueous solution under ambient conditions without any surfactant or template. X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM), selected area electron diffraction (SAED), photoluminescence (PL) spectra as well as kinetic decays were employed to characterize the samples. The SEM and the TEM images show that the hexagonal structured lanthanide orthophosphate LnPO{sub 4} (Ln=La, Ce, Pr, Nd, Sm, Eu, Gd) products have nanorod bundles morphology, while the tetragonal LnPO{sub 4} (Ln=Tb, Dy, Ho) samples prepared under the same experimental conditions are composed of nanoparticles. HRTEM micrographs and SAED results prove that these nanostructures are polycrystalline in nature. The possible formation mechanism for LnPO{sub 4} (Ln=La-Gd) nanorod bundles is proposed. Eu{sup 3+}-doped LaPO{sub 4} and Tb{sup 3+}-doped CePO{sub 4} samples were also prepared by using the same synthetic process, which exhibit an orange-red (Eu{sup 3+}:{sup 5}D{sub 0}-{sup 7}F{sub 1,2,3,4}) and green (Tb{sup 3+}, {sup 5}D{sub 4}-{sup 7}F{sub 3,4,5,6}) emission, respectively. - Graphical Abstract: Hexagonal LnPO{sub 4} (Ln=La, Ce, Pr, Nd, Sm, Eu, Gd) and tetragonal LnPO{sub 4} (Ln=Tb, Dy, Ho) nanoparticles have been synthesized by a simple and facile sonochemical method.

• OSTI ID: 21212198
• Journal Information: Journal of Solid State Chemistry, Vol. 182, Issue 2; Other Information: DOI: 10.1016/j.jssc.2008.10.023; PII: S0022-4596(08)00540-9; Copyright (c) 2008 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); ISSN 0022-4596
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
AQUEOUS SOLUTIONS
DOPED MATERIALS
DYSPROSIUM PHOSPHATES
ELECTRON DIFFRACTION
EUROPIUM IONS
EUROPIUM PHOSPHATES
GADOLINIUM PHOSPHATES
HOLMIUM PHOSPHATES
IRRADIATION
LANTHANUM PHOSPHATES
MORPHOLOGY
NANOSTRUCTURES
NEODYMIUM PHOSPHATES
PHOTOLUMINESCENCE
POLYCRYSTALS
PRASEODYMIUM PHOSPHATES
SAMARIUM PHOSPHATES
SCANNING ELECTRON MICROSCOPY
SPECTRA
SYNTHESIS
TERBIUM IONS
TERBIUM PHOSPHATES
TRANSMISSION ELECTRON MICROSCOPY
X-RAY DIFFRACTION