Low-Temperature Synthesis of Nano-Crystalline Zn2SiO4 Powders by Aqueous Sol-Gel Process


Article Preview

The willemite-type Zn2SiO4 was successfully synthesized by the aqueous sol-gel method using Si sols dioxide and zinc nitrate as starting materials instead of expensive organic solvent and metal alkoxides. The as-prepared nanopowders were characterized by X-ray diffraction (XRD), differential thermal analysis (DTA) and scanning electron microscope (SEM), respectively. The results showed that the calcination process of gel consisted of a series of oxidation and combustion reactions, accompanied by significantly exothermal effects. Highly reactive nanosized Zn2SiO4 powders were successfully obtained at 800 °C with particle size ~100 nm. By comparison, the aqueous sol-gel process was the most effective and least expensive technique used for the preparation of Zn2SiO4 nanopowders.



Edited by:

Yuan Ming Huang




X.F. Chen et al., "Low-Temperature Synthesis of Nano-Crystalline Zn2SiO4 Powders by Aqueous Sol-Gel Process", Key Engineering Materials, Vol. 538, pp. 193-196, 2013

Online since:

January 2013




[1] K. X. Song, X. M. Chen and C. W. Zheng: Ceram Int. Vol. 34 (2008), p.917.

[2] Y. Guo, H. Ohsato and K. I. Kakimoto: J. Eur. Ceram. Soc. Vol. 26 (2006), p.1827.

[3] N. H. Nguyen, J. B. Lim, S. Nahm and J. H. Paik: J. Am. Ceram. Soc. Vol. 90 (2007), p.3127.

[4] J. S. Kim: J. Eur. Ceram. Soc. Vol. 30 (2010), p.375.

[5] S. P. Wu, J. H. Luo and S. X. Cao: J. Alloy Compd. Vol. 502 (2010), p.147.

[6] Y.C. Zhang, B. J. Fu, Y. H. Liu, X. Wang and T. Li: J. Alloy Compd. Vol. 505 (2010), p.750.

[7] Y. P. Long, Y. X. Li, Y. L. Wang and W. J. Wu: J. Alloy Compd. Vol. 475 (2009), p.546.

[8] M. R. Varma, P. Nisha and P. C. R. Varma: J. Alloy Compd. Vol. 457 (2008), p.422.

[9] A. Thorvaldsen: Acta. Mater. Vol. 45 (1997), p.595.