Enhancement of optical properties and dependence of the crystal structure, morphological properties of PrPO4 by microwave-assisted-hydrothermal synthesis
Source abstract
Abstract
Abstract In this paper, PrPO4 nanostructures with hexagonal (rhabdophane phase) and monoclinic (monazite phase) structures were obtained by a microwave-assisted-hydrothermal method and characterized by X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM), Fourier Transform Infrared Spectroscopy (FT-IR), Dynamic Light Scattering (DLS) and Reflectance Diffuse Spectroscopy (DRS) and High Resolution Transmission Electron Microscopy (HRTEM). A first study of the experiment was done in order to evaluate the reaction time (130 and 180 °C), synthesis time (15 and 30 min) and sintering temperature (400 and 600 °C). Subsequently, the medium pH was adjusted to 1, 3, 5, 9 and 11 under two previously selected conditions. The results highlight the significant effects exerted by the synthesis parameters on the structure, crystal and particle sizes, morphology type, reaction mechanism as well as on the PrPO4 absorption/transmission region.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Luminescence Properties of Advanced Materials · Thermal and Kinetic Analysis · Chemical Synthesis and Characterization
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (32)
Show source-provided references
1. Crystal structure and optical study of praseodymium polyphosphate Pr(PO3)310.1016/S0025-5408(03)00185-5 ↗
2. Crystal structure, energy band and optical characterizations of praseodymium monophosphate PrPO410.1016/j.ica.2008.08.021 ↗
3. Influence of processing parameters on the luminescence of sol–gel derived PrPO410.1016/j.materresbull.2005.04.023 ↗
4. Sol–gel-derived photonic structures handling erbium ions luminescence10.1007/s11082-014-9954-7 ↗
5. Structural and spectroscopic properties of Eu3+-activated nanocrystalline tetraphosphates loaded in silica-hafnia thin film10.1016/j.jnoncrysol.2013.12.019 ↗
6. Influence of phosphorous precursors on spectroscopic properties of Er3+ -activated SiO2–HfO2–P2O5 planar waveguides
7. Microwave-assisted hydrothermal synthesis of CePO4 nanostructures: correlation between the structural and optical properties10.1016/j.jallcom.2014.12.053 ↗
8. Optical and structural characterisation of pure and Pr3+ doped LaPO4 and CePO4 nanocrystals10.1016/j.jallcom.2011.04.077 ↗
9. Solid-state synthesis of monazite-type compounds LnPO4 (Ln=La to Gd)10.1016/j.solidstatesciences.2007.03.019 ↗
10. Controlled synthesis of light rare earth phosphate nanowires via a simple solution route10.1016/j.matchemphys.2008.09.062 ↗
11. Systematic synthesis and characterization of single-crystal lanthanide orthophosphate nanowires10.1021/ja037280d ↗
12. Microwave enhanced synthesis10.1016/j.tet.2009.01.105 ↗
13. Nanostructure sword-like ZnO wires: rapid synthesis and characterization through a microwave-assisted route10.1016/j.jallcom.2008.01.093 ↗
14. Cerium phosphate nanoparticles with low photocatalytic activity for UV light absorption application in photoprotection10.1016/j.dyepig.2012.12.020 ↗
15. Hydrothermal synthesis and characterization of hexagonal and monoclinic CePO4 single-crystal nanowires10.1016/S0022-0248(03)01301-0 ↗
16. Crystal chemistry of the monazite structure10.1016/j.jeurceramsoc.2010.12.019 ↗
17. Modified Scherrer equation to estimate more accurately nano-crystallite size using XRD10.4236/wjnse.2012.23020 ↗
18. , Facile sonochemical synthesis and photoluminescent properties of lanthanide orthophosphate nanoparticles10.1016/j.jssc.2008.10.023 ↗
19. Solvent effect in monoclinic to hexagonal phase transformation in LaPO4:RE (RE=Dy3+, Sm3+) nanoparticles: photoluminescence study10.1016/j.jlumin.2011.02.023 ↗
20. The vibrational spectra and characteristic features of the orthophosphates of Group I–III elements10.1070/RC1994v063n05ABEH000093 ↗
21. X-ray diffraction and IR-absorption characteristics of lanthanide orthophosphates obtained by crystallisation from phosphoric acid solution10.1023/A:1021188810349 ↗
22. Structural stability test of hexagonal CePO4 nanowires synthesized at ambient temperature10.1016/j.molstruc.2012.11.042 ↗
23. Sadeghi · 2014 · 195
24. The influence of pH and temperature on the morphology of hydroxyapatite synthesized by hydrothermal method10.1016/S0272-8842(02)00210-9 ↗
25. Controlled synthesis and luminescence properties of LaPO4:Eu phosphors10.1016/j.jlumin.2011.03.029 ↗
26. Shinde · 2012 · 61
27. Influence of ZnWO4 nanorod aspect ratio on the photocatalytic activity10.1039/c1ce05256j ↗
28. General synthesis of single-crystal tungstate nanorods/nanowires: a facile, low-temperature solution approach10.1002/adfm.200304373 ↗
29. The growth of lanthanum phosphate (rhabdophane) nanofibers via the hydrothermal method10.1016/j.materresbull.2005.04.019 ↗
30. Environmentally benign novel green pigments: Pr1-xCaxPO4 (x=0-0.4)10.1007/BF02711264 ↗
31. Spectroscopic study and white-light simulation using praseodymium-doped fluorogermanate glass as single phosphor for white LEDs10.1016/j.optmat.2012.07.020 ↗
32. Polyurethane nanocomposite films containing nano-cerium oxide as UV absorber. Part 1. Static and dynamic light scattering, small angle neutron scattering and optical studies10.1016/j.colsurfa.2012.05.027 ↗