The Effect of Boron Oxide on Phosphate Ion Released from Borosilicate Glass in Seawater

Abstract:

Glasses in the system [wt%: (55-x)% SiO₂-(15+x)% B₂O₃-15% P₂O₅-10% Na₂CO₃-5% Fe₂O₃] where 15 ≤ x ≤ 40 % have been prepared with the different amount (35-55 wt%) of boron oxide. The compositions were limited by fixing the P₂O₅ at 15 wt%, Na₂CO₃ at 10 wt% and fixing the Fe₂O₃ at 5 wt%. The objective of this study is to determine the effect of boron oxide on phosphate ion released from borosilicate glass in seawater. The glass has been prepared by melting in the alumina crucible within 2 hours of soaking time at 1300 °C in the furnace and cooled to room temperature. The obtained glass was crashed and sieved with yielding a mean size of 710 μm. The samples were immersed in seawater under dynamic condition by stirring at 310 rpm. The water sample was taken 6 times at every 15 minutes until 75 minutes and analyzed using Discrete Auto Analyzer. The functional group and morphological characterization on the glass surface have been investigated using Fourier Transform Infrared (FTIR) and Scanning Electron Microscopy (SEM). Analysis of the data indicates that the amount of 50 wt% boron was the best and optimum for the phosphate ion release which is 126.53 ppm.

• Periodical: Materials Science Forum (Volume 840)
• Pages: 24-28
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.840.24
• Online since: January 2016
• Authors: Nurul Fariha Yusof*, Ku Halim Ku Bulat, Nur Azam Badarulzaman, Mohd Al Amin Muhamad Nor
• Keywords: Boron Oxide, Borosilicate Glass, Phosphate Ion

References

[1] M.S. Gaafar, H.A. Afifi, M.M. Mekawy, Structural studies of some phospho-borate glasses using ultrasonic pulse-echo technique, DSC and IR spectroscopy, Physica. B Condens. Matter. 404(12) (2009) 1668-1673.

DOI: 10.1016/j.physb.2009.01.045

[2] J.S. Nam, C.Y. Kim, Effect of B2O3 on the removal of phosphate ions an aqueous solution in borosilicate glasses, J. Hazard. Mater. 172 (2009) 1013-1020.

DOI: 10.1016/j.jhazmat.2009.07.094

[3] J.S. Nam, C.Y. Kim, Phosphate ion removal from a solution by soda-lime borosilicate glass, J. Non-Cryst. Solids 354 (2008) 5009-5013.

DOI: 10.1016/j.jnoncrysol.2008.07.014

[4] M. Saiki, A. Watanuki, N. Hirose, T. Aota, S. Kitao, Y. Sennai and K. Horikawa, U. S. Patent 6, 199, 317B1 (2001).

[5] D. Carta, Q. Dong, P. Guerry, I. Ahmed, E.A. Abou Neel, J.C. Knowles, M.E. Smith, R.J. Newport, The effect of composition on the structure of sodium borophosphate glasses, J. Non-Cryst. Solids 354 (2008) 3671-3677.

DOI: 10.1016/j.jnoncrysol.2008.04.009

[6] S. Shailajha, K. Geetha, P. Vasantharani, S.P. Sheikh Abdul Kadhar, Effects of copper on the preparation and characterization of Na-Ca-P borate glasses, Spectrochim. Acta A Mol. Biomol. Spectrosc. 138 (2015) 846-856.

DOI: 10.1016/j.saa.2014.10.101

[7] M. Bengisu, R. K. Brow, E. Yilmaz, A. Moguš-Milankoviḉ, S. T. Reis, Aluminoborate and aluminoborosilicate glasses with high chemical durability and the effect of P2O5 additions on the properties, J. Non-Cryst. Solids 352 (2006) 3668-3676.

DOI: 10.1016/j.jnoncrysol.2006.02.118

[8] S.M. Abo-Naf, F.H. El Batal, M. A. Azooz, Characterization of some glasses in the system SiO2, Na2O·RO by infrared spectroscopy, Mater. Chem. Phys. 77 (2002) 846-852.

DOI: 10.1016/s0254-0584(02)00215-8

[9] C. Stähli, M.S. Mohammadi, K.E. Waters, S.N. Nazhat, Characterization of aqueous interactions of copper-doped phosphate-based glasses by vapour sorption, Acta Biomater. 10 (2014) 3317-3326.

DOI: 10.1016/j.actbio.2014.03.015

[10] P.Y. Shih, J.Y. Ding, S.Y. Lee, 31P MAS-NMR and FTIR analyses on the structure of CuO-containing sodium poly- and meta-phosphate glasses, Mater. Chem. Phys. 80 (2003) 391-396.

DOI: 10.1016/s0254-0584(03)00098-1

[11] R.K. Brow, D.R. Tallant, S.T. Myers, C.C. Phifer, The short-range structure of zinc polyphosphate glass, J. Non-Cryst. Solids 191 (1995) 45-55.

DOI: 10.1016/0022-3093(95)00289-8

[12] J.O. Byun, B.H. Kim, K.S. Jung, S.W. Lee, A.A. Izyneev, Properties and structure of RO-Na2O-Al2O3-P2O5 (R = Mg, Ca, Sr, Ba) glasses, J. Non-Cryst. Solids 190 (1995) 288-295.

DOI: 10.1016/0022-3093(95)00280-4

[13] C.Y. Kim, H.Y. Kim, J.S. Nam, Removal of lead ions from solution by phosphosilicate glass, J. Hazard. Mater. 153 (2008) 173-178.

DOI: 10.1016/j.jhazmat.2007.08.044

[14] S. Ibrahim, M.M. Morsi, Effect of increasing Fe2O3 content on the chemical durability and infrared spectra of (25− x) Na2O− xFe2O3–25PbO–50SiO2 glasses, Mater. Chem. Phys. 138 (2013) 628-632.

DOI: 10.1016/j.matchemphys.2012.12.030