Effect of Acid Concentration on Surface Area of Sol-Gel Derived Y2O3

Authors

Keywords:

Y2O3, Phosphorus, Acid Concantration, Surface Area

Abstract

Yttrium oxide (Y2O3) ceramics have been investigated in detail for many technological purposes and used as important material in the ceramic industry, ceramic superconductors, MOS transistors and light-emitting materials. Phosphor materials are important tools for the efficient utilization of current energy. These materials can be used in various fields such as display panels, fluorescent paints, and bio-imaging. In this study, Y2O3 phosphor particles with different surface areas were produced using the sol-gel method. The aim of the study is to investigate the effect of citric acid concentration used in the solution preparation stage on the surface area of the final product. Luminescent materials can be more effectively used with increasing surface area. For this purpose, starting solutions with three different acid concentrations were prepared. The solutions were prepared to have citric acid concentrations with respect to the total metal ions (MRCM) at 0.5, 1, and 2 molar concentrations. The organic contents of the dried solutions were compared using Fourier transform infrared (FTIR) spectroscopy, and the phase structures of the obtained samples after heat treatment were analyzed using X-ray diffraction (XRD). The surface areas of the final Y2O3 particles were measured and characterized using Brunauer-Emmett-Teller (BET) analysis. It is observed that the acid concentration significantly changed the surface area of Y2O3. The surface areas of the Y2O3 particles increased with increasing acid concentration. The surface areas of the samples with MRCM values of 0.5, 1, and 2 were measured as 19.16 m2/g, 32.76 m2/g, and 53.48 m2/g, respectively. The study showed that the surface area, which affects the luminescent properties of phosphor materials, can be easily modified using the sol-gel method.

References

Packiyaraj, P. and P. Thangadurai, Structural and photoluminescence studies of Eu3+ doped cubic Y2O3 nanophosphors. Journal of luminescence, 2014. 145: p. 997-1003.

Venkatachalaiah, K., et al., Structural, morphological and photometric properties of sonochemically synthesized Eu3+ doped Y2O3 nanophosphor for optoelectronic devices. Materials Research Bulletin, 2017. 94: p. 442-455.

Pappalardo, R. and R. Hunt, Dye‐Laser Spectroscopy of Commercial Y 2 O 3: Eu3+ Phosphors. Journal of the Electrochemical Society, 1985. 132(3): p. 721.

Binnemans, K. and P.T. Jones, Perspectives for the recovery of rare earths from end-of-life fluorescent lamps. Journal of Rare Earths, 2014. 32(3): p. 195-200.

Cavouras, D., et al., An evaluation of the Y2O3: Eu3+ scintillator for application in medical x‐ray detectors and image receptors. Medical Physics, 1996. 23(12): p. 1965-1975.

Dong, Z., et al., Controlled synthesis of high-quality W-Y2O3 composite powder precursor by ascertaining the synthesis mechanism behind the wet chemical method. Journal of Materials Science & Technology, 2020. 36: p. 118-127.

Kang, Y.C., H.S. Roh, and S.B. Park, Preparation of Y2O3:Eu Phosphor Particles of Filled Morphology at High Precursor Concentrations by Spray Pyrolysis. Advanced Materials, 2000. 12(6): p. 451-453.

Adam, R.E., et al., Synthesis of ZnO nanoparticles by co-precipitation method for solar driven photodegradation of Congo red dye at different pH. Photonics and Nanostructures-Fundamentals and Applications, 2018. 32: p. 11-18.

Tanner, P.A. and L. Fu, Morphology of Y2O3:Eu3+ prepared by hydrothermal synthesis. Chemical Physics Letters, 2009. 470(1): p. 75-79.

Chong, M.K., K. Pita, and C.H. Kam, Photoluminescence of Y2O3:Eu3+ thin film phosphors by sol–gel deposition and rapid thermal annealing. Journal of Physics and Chemistry of Solids, 2005. 66(1): p. 213-217.

Boukerika, A. and L. Guerbous, Annealing effects on structural and luminescence properties of red Eu3+-doped Y2O3 nanophosphors prepared by sol–gel method. Journal of Luminescence, 2014. 145: p. 148-153.

Luna-Arredondo, E., et al., Indium-doped ZnO thin films deposited by the sol–gel technique. Thin Solid Films, 2005. 490(2): p. 132-136.

Farley, N.R., et al., Sol-gel formation of ordered nanostructured doped ZnO films. Journal of Materials Chemistry, 2004. 14(7): p. 1087-1092.

Dupont, A., et al., Size and morphology control of Y2O3 nanopowders via a sol–gel route. Journal of Solid State Chemistry, 2003. 171(1): p. 152-160.

Ismail, A.A., Synthesis and characterization of Y2O3/Fe2O3/TiO2 nanoparticles by sol–gel method. Applied Catalysis B: Environmental, 2005. 58(1): p. 115-121.

Taxak, V.B., et al., Tartaric acid-assisted sol–gel synthesis of Y2O3:Eu3+ nanoparticles. Journal of Alloys and Compounds, 2009. 469(1): p. 224-228.

Jung, K.Y., C.H. Lee, and Y.C. Kang, Effect of surface area and crystallite size on luminescent intensity of Y2O3: Eu phosphor prepared by spray pyrolysis. Materials Letters, 2005. 59(19-20): p. 2451-2456.

Ghorbani, S., et al., Synthesis of MgO-Y2O3 composite nanopowder with a high specific surface area by the Pechini method. Ceramics International, 2017. 43(1): p. 345-354.

Gupta, S.K., et al., Roles of oxygen vacancies and pH induced size changes on photo-and radioluminescence of undoped and Eu3+-doped La2Zr2O7 nanoparticles. Journal of Luminescence, 2019. 209: p. 302-315.

Kwak, M.-G., J.-H. Park, and S. Shon, Synthesis and properties of luminescent Y2O3: Eu (15–25 wt%) nanocrystals. Solid state communications, 2004. 130(3-4): p. 199-201.

Babu, K.S., et al., Effects of precursor, temperature, surface area and excitation wavelength on photoluminescence of ZnO/mesoporous silica nanocomposite. Ceramics International, 2013. 39(3): p. 3055-3064.

Cho, C.-M., N. Nunotani, and N. Imanaka, Effect of oxygen vacancies on direct N2O decomposition over ZrO2-Y2O3 catalysts. Journal of Asian Ceramic Societies, 2019. 7(4): p. 518-523.

Krishna, R.H., et al., Auto-ignition based synthesis of Y2O3 for photo-and thermo-luminescent applications. Journal of alloys and compounds, 2014. 585: p. 129-137.

Kaszewski, J., et al., Reduction of Tb4+ ions in luminescent Y2O3: Tb nanorods prepared by microwave hydrothermal method. Journal of rare earths, 2016. 34(8): p. 774-781.

Yoo, H.S., et al., Particle size control of a monodisperse spherical Y2O3: Eu3+ phosphor and its photoluminescence properties. Journal of materials research, 2007. 22(7): p. 2017-2024.

Aleshin, D.K., et al., Synthesis of spherical Y2O3:Er emitting particles with variable radial composition by controlled double-jet precipitation of layered precursors. Particuology, 2023. 74: p. 92-102.

Lapham, D.P. and J.L. Lapham, BET surface area measurement of commercial magnesium stearate by krypton adsorption in preference to nitrogen adsorption. International Journal of Pharmaceutics, 2019. 568: p. 118522.

Park, G.D., et al., Effect of esterification reaction of citric acid and ethylene glycol on the formation of multi-shelled cobalt oxide powders with superior electrochemical properties. Nano Research, 2014. 7: p. 1738-1748.

Published

2024-03-31

How to Cite

Gültekin, S., & Birlik, I. (2024). Effect of Acid Concentration on Surface Area of Sol-Gel Derived Y2O3. ICONTECH INTERNATIONAL JOURNAL, 8(1). Retrieved from https://icontechjournal.com/index.php/iij/article/view/317

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