Synthesis, characterization, and electrical and optical properties of magnesium-type boracite
Synthesis of the magnesium type of the mineral boracite (Mg$_{3}$B$_{7}$O$_{13}$Cl) was studied. Several parameters affecting boracite synthesis were investigated. The raw materials selected were magnesium chloride hexahydrate (MgCl$_{2}$.6H$_{2}$O), magnesium oxide (MgO), and boron oxide (B$_{2}$O$_{3})$. Reaction temperatures were selected between 600~$^{\circ}$C and 900 $^{\circ}$C. Moreover, three different reaction times of 4, 1, and 0.5 h were studied with the determined optimum molar ratio, reaction temperature, and reaction medium. Synthesized boracite characterization analyses were done by the techniques of X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), and scanning electron microscope (SEM). Reaction yields were also calculated. From the results of this study the magnesium type of boracite was obtained as a single phase with high XRD crystal score. Optimum conditions for the synthesis were as follows: MgCl$_{2}$.6H$_{2}$O to B$_{2}$O$_{3}$ mole ratios of 5:6.5, 5:7.5, 6:6.5, 6:7.5, 7:6.5, 7:7.5; 600 $^{\circ}$C reaction temperature; 1 h reaction time; and reaction medium as air atmosphere. Reaction yields were between 58.81 $\pm $ 1.65{\%} and 77.49 $\pm $ 1.86{\%}. Some selected magnesium type of boracite minerals, electrical resistivity, and optical absorbance properties were also measured for the determination of physical properties.
Synthesis, characterization, and electrical and optical properties of magnesium-type boracite
Synthesis of the magnesium type of the mineral boracite (Mg$_{3}$B$_{7}$O$_{13}$Cl) was studied. Several parameters affecting boracite synthesis were investigated. The raw materials selected were magnesium chloride hexahydrate (MgCl$_{2}$.6H$_{2}$O), magnesium oxide (MgO), and boron oxide (B$_{2}$O$_{3})$. Reaction temperatures were selected between 600~$^{\circ}$C and 900 $^{\circ}$C. Moreover, three different reaction times of 4, 1, and 0.5 h were studied with the determined optimum molar ratio, reaction temperature, and reaction medium. Synthesized boracite characterization analyses were done by the techniques of X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), and scanning electron microscope (SEM). Reaction yields were also calculated. From the results of this study the magnesium type of boracite was obtained as a single phase with high XRD crystal score. Optimum conditions for the synthesis were as follows: MgCl$_{2}$.6H$_{2}$O to B$_{2}$O$_{3}$ mole ratios of 5:6.5, 5:7.5, 6:6.5, 6:7.5, 7:6.5, 7:7.5; 600 $^{\circ}$C reaction temperature; 1 h reaction time; and reaction medium as air atmosphere. Reaction yields were between 58.81 $\pm $ 1.65{\%} and 77.49 $\pm $ 1.86{\%}. Some selected magnesium type of boracite minerals, electrical resistivity, and optical absorbance properties were also measured for the determination of physical properties.
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- Dou, L.; Zhong, J.; Wang, H. Phys. Scripta 2010, T139, 014010.
- Li, S.; Xu, D.; Shen, H.; Zhou, J.; Fan, Y. Mater. Res. Bull. 2012, 47, 3650–3653.
- Kumari, L.; Li, W. Z.; Kulkarni, S.; Wu, K. H.; Chen, W.; Wang, C.; Vannoy, C. H.; Leblanc, R. M. Nanoscale Res. Lett. 2010, 5, 149–157.
- Xu, B.; Li, T.; Zhang, Y.; Zhang, Z.; Liu, X.; Zhao J. Cryst. Growth. Des. 2008, 8, 1218–1222.
- Shahare, D. I.; Dhoble, S. J.; Moharil, S. V. J. Mater. Sci. Lett. 1993, 12, 1873–1874.
- Hu, Z. S.; Lai, R.; Lou, F.; Wang, L. G.; Chen, Z. L.; Chen, G. X.; Dong J. X. Wear 2002, 252, 370–374.
- Kashiwada, Y.; Furuhata, Y. Phys. Status Solidi A 1976, 36, K29–K31.
- Wang, H.; Jia, G.; Wang, Y.; You, Z.; Li, J.; Zhu, Z.; Yang F.; Wei, Y.; Tu, C. Opt. Mater. 2007, 29, 1635–1639.
- Furetta, C.; Kitis, G.; Weng, P. S.; Chu, T. C. Nucl. Instrum. Methods Phys. Res. A 1999, 420, 441–444.
- Zhu, W.; Zhang, Q.; Xiang, L.; Wei, F.; Sun, X.; Piao, X. Cryst. Growth Des. 2008, 8, 2938–2945.
- Qasrawi, A. F.; Kayed, T. S.; Mergen, A.; G¨ur¨u, M. Mater. Res. Bull. 2005, 40, 583–589.
- Doˇsler, U.; Krˇzmanc, M. M.; Suvorov, D. J. Eur. Ceram. Soc. 2010, 30, 413–418.
- Ellsfah, E. M.; Enousi, A.; Zhang, J.; Song, H. S.; Chengcun, T. Mater. Lett. 2007, 61, 4358–4361.
- Li, S.; Fang, X.; Leng, J.; Shen, H.; Fan, Y.; Xu, D. Mater. Lett. 2010, 64, 151–153.
- Zeng, Y.; Yang, H.; Fu, W.; Qiao, L.; Chang, L.; Chen, J.; Zhu H.; Li, M; Zou, G. Mater. Res. Bull. 2008, 43, –2247.
- Zhang, J.; Li, Z.; Zhang, B. Mater. Chem. Phy. 2006, 98, 195–197.
- Mao, S. Y.; Schmid, H.; Triscone, G.; Muller, J. J. Magn. Magn. Mater. 1999, 199, 65–75.
- Li, D.; Xu Z. J.; Wang, Z. H.; Geng, D. Y.; Zhang, J. S.; Zhang, Z. D.; Yuan, G. L.; Liu, J. M. J. Alloys Compd. , 351, 235–240. Frost, R. L.; Xi, Y.; Scholz R. Spectrochim. Acta, Part A, 2012, 96, 946–951.
- Castellanos-Guzman, A. G.; Trujillo-Torrez, M.; Czank, M. Mater. Sci. Eng. 2005, 120, 59–63.
- Frost, R. L.; Lopez, A.; Scholz, R., Xi, Y. Spectrochim. Acta, Part A 2014, 120, 270–273.
- Wang, Z. H.; Geng, D. Y.; Li, D.; Zhao, X. G.; Zhang, Z. D. J. Alloys Compd. 2001, 329, 278–284.
- Ju, J.; Li, H.; Wang, Y.; Lin, J.; Dong, C. J. Mater. Chem. 2002, 12, 1771–1774.
- Delfino, M.; Gentile, P. S.; Gabriel, M. L.; Smith, W. A. Method for the Synthesis of Boracides; US Patent no: 243.642, 1981.
- Piskin, S.; Gurel, S. E.; Senberber, F. T.; Kipcak, A. S.; Derun, E. M.; Tugrul, N. Journal of International Scientific Publications: Materials, Methods and Technologies 2013, 7, 362–372.
- Kipcak, A. S.; Ibroska, T.; Tugrul, N.; Derun, E. M.; Piskin, S. Sigma, Journal Of Engineering And Natural Sciences 2014, 32, 201–210.
- Yongzhong, J.; Shiyang, G.; Shuping, X.; Jun, L. Spectrochim. Acta, Part A 2000, 56, 1291–1297.
- Li, Y.; Fan, Z.; Lu, J. G.; Chang, R. P. H. Chem. Mater. 2004, 16, 2512–2514.
- Kumari, L.; Li, W. Z.; Kulkarni S.; Wu, K. H.; Chen, W.; Wang, C.; Vannoy, C. H.; Leblanc, R. M. Nanoscale Res. Lett. 2009, 5, 149–157.
- Ibroska, T.; Kipcak, A. S.; Derun, E. M.; Piskin, S. In Solid-State synthesis and characterization of boracite minerals at 800C from MgCl2.6H2O, MgO and B2O3. Proceedings of the First International Symposium on Innovative Technologies for Engineering and Science, Sakarya, Turkey, 2013.
- Derun, E. M.; Kipcak A. S.; Senberber F. T.; Yilmaz, M. S. Res. Chem. Intermediat. 2015, 41, 853–866.
- Kipcak, A. S.; Moroydor Derun, E.; Piskin, S. J. Chem. 2013, 329238.
- Kipcak, A. S.; Yilmaz Baysoy, D.; Moroydor Derun, E.; Piskin, S. Adv. Mater. Sci. Eng. 2013, 747383.
- Kıp¸cak, A. S.; Moroydor Derun, E.; Pi¸skin, S. Turk. J. Chem. 2014, 38, 792–805.
- Kipcak, A. S.; Yildirim, M.; Yuksel, S. A.; Moroydor Derun, E.; Piskin S. Adv. Mater. Sci. Eng. 2014, 819745.
- Fogler, H. S. Elements of Chemical Reaction Engineering ; 3rd edition, Prentice-Hall: Englewood Cliffs, NJ, USA,