The Effect of the Reaction Time on the Microwave Synthesis of Magnesium Borates from MgCl2.6H2O, MgO and H3BO3

Authors: E. Moroydor Derun, P. Gurses, M. Yildirim, A. S. Kipcak, T. Ibroska, S. Piskin

Abstract:

Due to their strong mechanical and thermal properties magnesium borates have a wide usage area such as ceramic industry, detergent production, friction reducing additive and grease production. In this study, microwave synthesis of magnesium borates from MgCl₂.6H₂O (Magnesium chloride hexahydrate), MgO (Magnesium oxide) and H₃BO₃ (Boric acid) for different reaction times is researched. X-ray Diffraction (XRD) and Fourier Transform Infrared (FT-IR) Spectroscopy are used to find out how the reaction time sways on the products. The superficial properties are investigated with Scanning Electron Microscopy (SEM). According to XRD analysis, the synthesized compounds are 00-041-1407 pdf coded Shabinite (Mg₅(BO₃)₄Cl₂(OH)₅.4(H₂O)) and 01-073-2158 pdf coded Karlite (Mg₇(BO₃)₃(OH,Cl)₅).

Keywords: Magnesium borate, microwave synthesis, XRD, SEM.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1093348

References:

[1] L. Shuang, X. Fang, H. Shen, Y. Fan, D. Xu, " A New Route for the Synthesis of Mg2B2O5Nanorods by Mechano-Chemical and Sintering Process”, Materials Letters, 2010, 64:151–153.
[2] X. Tao, X. Li, "Catalyst-Free Synthesis, Structural, and Mechanical Characterization of Twinned Mg2B2O5 Nanowires”, Nano Letters, 2008, 8: 505- 510.
[3] W. Zhu, G. Li, X. Zhang, L. Xiang, S. Zhu, "Hydrothermal mass production of MgBO2(OH) nanowhiskers and subsequent thermal conversion to Mg2B2O5nanorods for biaxially oriented polypropylene resins reinforcement”, Powder Technology, 2010, 203:265–271.
[4] L. Kumari, W. Z. Li, S. Kulkarni, K. H. Wu, W. Chen, C. Wang, C. H. Vannoy, R.M. Leblanc, "Effect of Surfactants on the Structure and Morphology of Magnesium Borate Hydroxide Nanowhiskers Synthesized by Hydrothermal Route”, Nanoscale Res Lett,2010, 5:149–157.
[5] D. Agaogullari, O. Balci, H. Gokce, I. Dursun, M. L. Ovecoglu, "Synthesis of Magnesium Borates by Mechanically Activated Annealing”, Metallurgical and Materials Transactions A, 2012, 43:2520-2533.
[6] B. Xu, T. Li, Y. Zhang, Z. Zhang, X. Liu, J. Zhao, "New Synthetic Route and Characterization of Magnesium Borate Nanorods”, Crystal Growth & Design, 2008, 8:1218–1222.
[7] W. Zhu, L. Xiang, T. He, S. Zhu, "Hydrothermally Synthesis and Characterization of Magnesium Borate Hydroxide Nanowhiskers”, Chemistry Letters, 2006, 35:1158-1159.
[8] J. Zhang, Z. Li, B. Zhang, "Formation and structure of single crystalline magnesium borate (Mg3B2O6) nanobelts”, Materials Chemistry and Physics, 2006, 98: 195–197.
[9] W. Zhu, X. Zhang, L. Xiang, S. Zhu, "Hydrothermal Formation of the Head-to-Head Coalesced Szaibelyite MgBO2(OH) Nanowires”, Nanoscale Res Lett, 2009, 4:724–731.
[10] J. Li, F. Wang, Y. Zhang, M. Wang, H. Wang, "Microstructure and Mechanical Properties of Magnesium Matrix Composite Reinforced with Magnesium Borate Whisker”, Journal of Composite Materials, 2012, 46: 3011–3016.
[11] L. Zhihong, H. Mancheng, "New Synthetic Method and Thermochemistry of Szaibelyite”, ThermochimicaActa, 2004, 411:27–29.
[12] M. A. Karakassides, D. Petridis, G. Mousdis, C. Trapalis, G. Kordas, "Preparation And Infrared Study of Magnesium Borate Gels with a Wide Composition Range”, Journal of Non-Crystalline Solids, 1996, 202:198-202.
[13] Y. Li, z. Fan, J. G. Lu, R. Chang, "Synthesis of Magnesium Borate (Mg2B2O5) Nanowires by Chemical Vapor Deposition Method”, Chem. Mater., 2004, 16, 2512-2514.
[14] Z. S. Kipcak, E. M. Derun, S. Piskin, "Magnesium Borate Synthesis by Microwave Energy: A New Method”, Journal of Chemistry, 2013, http://dx.doi.org/10.1155/2013/329238.
[15] E. Ay, "Synthesis and Characterization of Compounds with Some Magnesium Borate Types by Solid-State Reactions”,M.Sc. Thesis, 2006,Balikesir University, Institute of Science Department of Chemistry.
[16] H.Guler, F. Kurtulus, E. Ay, G. Celik, I. Doğan, "Solid-State and Microwave-Asisted Synthesis and Characterization of Mg2B2O5 and Mg3(BO3)2”, 4th International Boron Symposium Proceedings Book, 2009.