Effect of Fe₂O₃ Contents on the Ions Release from Phosphate-Based Glass

Abstract:

Currently, phosphate-based glasses have been extensively studied for their special characteristic of being soluble in aqueous medium and capable of releasing ions. This paper presents the relationship between the solubility properties and ion released of phosphate glasses having a composition of 6Al₂O₃-15K₂O-14Na₂O-(20-x)CaO-xFe₂O₃-45P₂O₅, where x = 2, 4, 6 and 8 wt.%. Clear and free bubbles of dark green glasses were obtained from the used of conventional melting technique at 1300 oC. The ion released and weight loss studies were determined from the immersion of the glass samples in deionised water for about 16 weeks under static condition. IR spectra revealed the formation of phosphate units such as metaphosphate and orthophosphate unit around 1097 cm^-1 and 1107 cm^-1 with the presence of Fe₂O₃ in the glass system. SEM image of the phosphate glass structure before and after immersion seems to be associated with the solubility of these glasses. From the study, the concentration of Na⁺ and K⁺ release decreased when more Fe₂O₃ contents were added to the system. Fe₂O₃ stabilize the network structure via the formation of P-O-Fe bond which more hydration resistant towards water penetrating molecules.

• Periodical: Materials Science Forum (Volume 840)
• Pages: 29-33
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.840.29
• Online since: January 2016
• Authors: Mohd Al Amin Muhamad Nor, Siti Hafizah Mohamad*
• Keywords: Ion Released, Iron Oxide, Phosphate Glass

References

[1] A. Masingu, G. Piccaluga, G. Pinna: Structural Properties of Lead-Iron Phosphate Glasses by X-Ray Diffraction J. Non-Cryst. Solids. 122 (1990) 52-56.

DOI: 10.1016/0022-3093(90)90224-a

[2] R. l. Prabhakar, Jc. Knowles: Effect of glass composition on the degradation properties and ion release characteristics of phosphate glass—polycaprolactone composites Biomater. 26 (2005) 2209-2218.

DOI: 10.1016/j.biomaterials.2004.07.016

[3] C.F. Drake, W. M, Allen: Biochem. Soc. Trans. 13 (1985) 516-520.

[4] R.I. Ahmed, D. Ready, M. Wilson, J.C. Knowles: Structure and properties of strontium-doped phosphate-based glasses Biomed. Mater. Res. 78 (2006) 618-625.

[5] P. Christian, C.A. Scothford: Long-term craniofacial osteoblast culture on a sodium phosphate and a calcium/sodium phosphate glass. Biomed. Mater. Res. 66 (2003) 233-240.

DOI: 10.1002/jbm.a.10574

[6] Bitar, V. Salleh, V. Mudera, J.C. Knowles, M. Lewis: Soluble phosphate glasses: in vitro studies using human cells of hard and soft tissue origin. Biomater. 25 (2004) 2283-2292.

DOI: 10.1016/j.biomaterials.2003.08.054

[7] I. Ahmed, M. Lewis, I. Olsen, J.C. Knowles: Processing, characterization and biocompatibility of iron-phosphate glass fibers for tissue engineering. Biomaterials. 25 (2004) 3223-3232.

DOI: 10.1016/j.biomaterials.2003.10.013

[8] C. S Ray, X. Fang, M. Karabulut, G.K. Marasinghe, De, Day: Effect of melting temperature and time on iron valence and crystallization of iron phosphate glasses. J. Non-Crystal. Solid. 1 (1999) 1-16.

DOI: 10.1016/s0022-3093(99)00304-x

[9] E.A. Abou Neel, I. Ahmed, J. Pratten, S. N, Nazhat: Characterisation of antibacterial copper releasing degradable phosphate glass fibres. Biomater. 26 (2005) 2247-2254.

DOI: 10.1016/j.biomaterials.2004.07.024

[10] R. Shah, Acm. Sinanan. Np. Hunt, Mp. Lewis: Craniofacial muscle engineering using a 3-dimensional phosphate glass fibre construct. Biomater. 26 (2005) 1497-1505.

DOI: 10.1016/j.biomaterials.2004.04.049

[11] M. Navarro, J.A. Planell: Cellular response to calcium phosphate glasses with controlled solubili J. Biomed. Mater. Res. 67 (2003) 1009-1015.

DOI: 10.1002/jbm.a.20014

[12] M. Karabulut, G.K. Marasinghe, C.S. Ray, D.E. Day, G.D. Waddill, C.H. Booth, P.G. Allen, J.J. Bucher, D.L. Caulder, D.K. Shuh: Iron phosphate glasses: Structure determination and displacement energy thresholds, using a fixed charge potential model. J. Non-Cryst. Solids. 306 (2002).

DOI: 10.1016/s0022-3093(02)01053-0

[13] K. Joseph, K.V. Govindan: Studies on the synthesis and characterization of cesium-containing iron phosphate glasses. J. Nucl. Mater. 384 (2009) 262–267.

DOI: 10.1016/j.jnucmat.2008.11.016

[14] E.A. Abou Neel, I. Ahmed, J.J. Blaker , A. Bismarck , A.R. Boccaccini , M.P. Lewis, S.N. Nazhat, J.C. Knowles: Effect of iron on the surface, degradation and ion release properties of phosphate-based glass fibres. Act. Biomater. 1 (2005) 553-563.

DOI: 10.1016/j.actbio.2005.05.001

[15] P.Y. Shih, Mater. Chem. Phys. Properties and FTIR spectra of lead phosphate glasses for nuclear waste immobilization. 80 (2003) 299–304.

DOI: 10.1016/s0254-0584(02)00516-3

[16] P. Pascuta, G. Borodi, A. Popa, V. Dan, E. Culea, Influence of iron ions on the structural and magnetic properties of some zinc-phosphate glasses. Mater. Chem. Phys. 123 (2010) 767- 777.

DOI: 10.1016/j.matchemphys.2010.05.056

[17] D.A. Magdas, O. Cozar, V. Chis, I. Ardelean, N. Vedeanu, Influence of MoO 3 on the Structure of Lithium Aluminum Phosphate Glasses. Vib. Spectrosc. 48 (2008) 251–254.

DOI: 10.1016/j.vibspec.2008.02.016

[18] B.V. Raghavaiah, C. Laxmikanth, N. Veeraiah, Optically induced effects in nano-crystallized PbO–Sb2O3–B2O3: Pr2O3 glasses. Opt. Commun. 235 (2004) 341–345.

DOI: 10.1016/j.jallcom.2010.03.221