Synthesis, crystal structure, optical and adsorption properties of BaAl2O4: Eu2+, Eu2+/ L3+ (L = Dy, Er, Sm, Gd, Nd, and Pr) phosphors
Source abstract
Abstract
Abstract In this work, the BaAl2O4: Eu2+, Eu2+/L3+ (L= Dy, Er, Sm, Gd, Nd, and Pr) phosphors were synthesized via a facile solid-state reaction method using LiCl as a flux material at 1100 °C. The structural properties, microstructure, adsorption and photoluminescence characteristics of products were evaluated by X-ray diffraction (XRD), field-emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), Uv–vis adsorption and photoluminescence (PL) analyses. The observation of XRD patterns showed that even 10% LiCl is not able to produce any impurity phase in BaAl2O4: Eu2+ crystal structure, although the microstructure morphology is considerably affected. The particle size of BaAl2O4: Eu2+ phosphors was about 220 nm while the use of LiCl flux resulted in a remarkable decrease of this parameter to about 120 nm. Furthermore, the PL patterns disclosed that Eu2+ ions have occupied one type of Ba2+ sites while larger quantities of lanthanides (L3+) occupied the second type of Ba2+ sites. The strongest photoluminescence emission intensity at the wavelength of 495 nm was achieved when 5 wt% LiCl was added to BaAl2O4: Eu2+. Also, the absorption analysis revealed that the addition of flux enriches the adsorption of Congo red (CR) dye on the phosphor powders. The use of 5 wt% flux material led to noticeable improvement of CR adsorption capacity from 38.53 to 48.3 mg g−1.
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Research context
OpenAlex topics: Luminescence Properties of Advanced Materials · Nuclear materials and radiation effects · Radiation Detection and Scintillator Technologies
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References (37)
Show source-provided references
1. Degradation of optical materials in solid-state lighting systems10.1080/09506608.2019.1565716 ↗
2. Improved photoluminescence properties of BaAl2Si2O8:Eu3+, Tb3+ phosphors by doping Tb3+10.1016/j.ceramint.2016.12.032 ↗
3. Enhanced luminescence properties of phosphors coated by silica nano-layers: study of reflection and emission10.1016/j.ceramint.2018.10.044 ↗
4. Improved optical properties of Dy3+ doped phosphors by spherical SiO2 particles10.1016/j.ceramint.2019.07.173 ↗
5. Towards multi-functional SiO2@ YAG: Ce core–shell optical nanoparticles for solid state lighting applications10.3390/nano10010153 ↗
6. Photophysical properties of Eu3+ and Tb3+-doped ZnAl2O4 phosphors obtained by combustion reaction10.1007/s10853-006-0035-6 ↗
7. Persistent luminescence excitation spectroscopy of BaAl2O4:Eu2+,Dy3+10.1016/j.physb.2019.411947 ↗
8. Synthesis and performance of BaAl2O4 with a wide spectral range of optical absorption10.1002/adfm.200700506 ↗
9. Linear structural evolution induced tunable photoluminescence in clinopyroxene solid-solution phosphors10.1038/srep03310 ↗
10. Photoluminescence tuning via cation substitution in oxonitridosilicate phosphors: DFT calculations, different site occupations, and luminescence mechanisms10.1021/cm500844v ↗
11. Blue-shift of Eu2+ emission in (Ba,Sr)3Lu(PO4)3:Eu2+ eulytite solid-solution phosphors resulting from release of neighbouring-cation-induced stress10.1039/C4DT02319F ↗
12. Reduction from Eu3+ to Eu2+ in BaAl2O4:Eu phosphor prepared in an oxidizing atmosphere and luminescent properties of BaAl2O4:Eu10.1016/j.jlumin.2007.04.012 ↗
13. The characterization and mechanism of long afterglow in alkaline earth aluminates phosphors co-doped by Eu2O3 and Dy2O310.1016/S0254-0584(00)00500-9 ↗
14. Structural and luminescence properties of yellow-emitting NaScSi2O6:Eu2+ phosphors: Eu2+ site preference analysis and generation of red emission by codoping Mn2+ for white-light-emitting diode applications10.1021/jp4062225 ↗
15. New yellow-emitting whitlockite-type structure Sr1.75Ca1.25(PO4)2:Eu2+ phosphor for near-UV pumped white light-emitting devices10.1021/ic500230v ↗
16. Structural evolution induced preferential occupancy of designated cation sites by Eu2+ in M5(Si3O9)2(M¼Sr, Ba, Y, Mn) phosphors10.1039/C6RA11681G ↗
17. Fabricate and characterization of Ag/BaAl2O4 and its photocatalytic performance towards oxidation of gaseous toluene studied by FTIR spectroscopy Materials Research
18. In-situ prepared ZnO-ZnFe2O4 with 1-D nanofiber network structure: an effective adsorbent for toxic dye effluent treatment10.1016/j.jhazmat.2019.03.108 ↗
19. Facile synthesis of ZnO and transition metal doped ZnO nanoparticles for the photocatalytic degradation of Methyl Orange10.1016/j.ceramint.2013.12.088 ↗
20. Green fabrication of bentonite/chitosan@cobalt oxide composite (BE/CH@Co) of enhanced adsorption and advanced oxidation removal of Congo red dye and Cr (VI) from water10.1016/j.ijbiomac.2018.12.225 ↗
21. Hierarchical C/NiO-ZnO nanocomposite fibers with enhanced adsorption capacity for Congo red10.1016/j.jcis.2018.11.045 ↗
22. Adsorption of Congo red dye on FexCo3-xO4 nanoparticles10.1016/j.jenvman.2019.03.009 ↗
23. Hierarchical porous Ni/Co-LDH hollow dodecahedron with excellent adsorption property for Congo red and Cr(VI) ions10.1016/j.apsusc.2019.02.008 ↗
24. New insight into modulated up-conversion luminescent silica nanotubes as efficient adsorbents for colored effluents10.1039/C4DT01552E ↗
25. Effect of flux compounds on the luminescence properties of Eu3+ doped YBO3 phosphors10.1515/msp-2016-0079 ↗
26. The effects of boric acid on crystal structure, nano/microstructure and photoluminescence characteristics of rare earth doped Y2O3/YBO3 composite compounds10.1007/s40097-017-0246-1 ↗
27. Texture, residual stress and structural analysis of thin films using a combined X-ray analysis10.1016/j.tsf.2003.10.150 ↗
28. Total pattern fitting for the combined size–strain–stress–texture determination in thin film diffraction10.1016/j.nimb.2009.09.053 ↗
29. Luminescence properties of Eu2+/Eu3+ activated barium aluminate phosphors with Gd3+ concentration variation10.1080/0371750X.2015.1082932 ↗
30. Synthesis, structural and vibrational properties of microcrystalline RbNd(MoO4)210.1016/j.jcrysgro.2010.09.076 ↗
31. Preparation and structural properties of nonlinear optical borates K2(1−x)Rb2xAl2B2O7, 0 < x < 0.7510.1016/j.jallcom.2011.11.115 ↗
32. Pressure-stimulated synthesis and luminescence properties of microcrystalline (Lu,Y)3Al5O12:Ce3+ garnet phosphors10.1021/acsami.5b08411 ↗
33. Synthesis of Ba2CaZn2Si6O17:Eu2+ phosphors: synthesis, microstructure and luminescence characteristics10.1007/s12666-020-01862-7 ↗
34. DFT and synchrotron radiation study of Eu2+ doped BaAl2O410.1364/OME.2.000420 ↗
35. Co-dopant influence on the persistent luminescence of BaAl2O4:Eu2+,R3+10.1016/j.physb.2013.11.007 ↗
36. Persistent luminescence of Eu2+ and Dy3+ doped barium aluminate (BaAl2O4:Eu2+, Dy3+) materials10.1016/j.optmat.2008.12.035 ↗
37. Synthesis and characterization of gadolinium doped cobalt ferrite nanoparticles with enhanced adsorption capability for Congo Red10.1016/j.cej.2014.03.113 ↗