Water-soluble monodispersed lanthanide oxide submicrospheres: PVP-assisted hydrothermal synthesis, size-control and luminescence properties
Article
Article Title | Water-soluble monodispersed lanthanide oxide submicrospheres: PVP-assisted hydrothermal synthesis, size-control and luminescence properties |
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ERA Journal ID | 1171 |
Article Category | Article |
Authors | Cui, Ying (Author), Lai, Xiaoyong (Author), Li, Li (Author), Hu, Zhudong (Author), Wang, Shuo (Author), Halpert, Jonathan E. (Author), Yu, Ranbo (Author) and Wang, Dan (Author) |
Journal Title | ChemPhysChem: a European journal of chemical physics and physical chemistry |
Journal Citation | 13 (10), pp. 2610-2614 |
Number of Pages | 5 |
Year | 2012 |
Place of Publication | Germany |
ISSN | 1439-4235 |
1439-7641 | |
Digital Object Identifier (DOI) | https://doi.org/10.1002/cphc.201100806 |
Web Address (URL) | http://onlinelibrary.wiley.com/doi/10.1002/cphc.201100806/abstract |
Abstract | We report a facile hydrothermal synthetic route to prepare a class of monodispersed lanthanide-based compound submicrospheres with controllable size, which employs raw lanthanide oxides as starting material, urea as precipitator and poly(N-vinyl-2-pyrrolidone) (PVP) as surfactant. Dependent on the intrinsic properties of respective lanthanide, the resulting products could be in the form of oxide, hydroxide or basic carbonate. These lanthanide hydroxides or basic carbonates can be easily transformed into their corresponding oxides by calcination, retaining the same morphology and size dispersion. The formation mechanism of these lanthanide-based compound submicrospheres is investigated and PVP plays a critical role in forming uniform and well-dispersed products. Furthermore, this method could be extended to a binary system by using two kinds of lanthanide oxides as starting material, resulting in doped-type lanthanide oxide submicrospheres (such as Y 2O 3:Eu 3+). The Y 2O 3:Eu 3+ submicrospheres exhibit nearly uniform spherical morphology and narrow size distribution as well as good water solubility and sharp spectral emission at 610 nm (corresponding to the 5D 0-7F 2 transition of Eu 3+). This makes them attractive materials for applications in fields such as fluorescent lamps, field emission displays (FEDs) or LCDs, or as biomedical labels and molecular probes. Easy! A facile hydrothermal synthetic route is presented to prepare a class of monodispersed lanthanide-based compound submicrospheres with controllable size (see picture). The method only employs raw lanthanide oxides as starting material, urea as precipitator and poly(N-vinyl-2-pyrrolidone) as surfactant. |
Keywords | hydrothermal synthesis; lanthanides; luminescence; materials science; monodispersed submicrosphere; |
ANZSRC Field of Research 2020 | 340699. Physical chemistry not elsewhere classified |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Chinese Academy of Sciences, China |
University of Science and Technology Beijing, China | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q4286/water-soluble-monodispersed-lanthanide-oxide-submicrospheres-pvp-assisted-hydrothermal-synthesis-size-control-and-luminescence-properties
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