Synthesis and Optimization of TiO2 Nano Crystals by Gel-Casting Method

A.A. Rohani; M. Tabrizi; S. Manafi; H. Badiei

doi:10.4028/www.scientific.net/JNanoR.11.73

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HomeJournal of Nano ResearchJournal of Nano Research Vol. 11Synthesis and Optimization of TiO2 Nano Crystals...

Synthesis and Optimization of TiO₂ Nano Crystals by Gel-Casting Method

Abstract:

In this study, titania (TiO2) nano powders were synthesized by a new method. TiO2 nano-sized powders were prepared by a gel-casting method. Crystalline structure, morphology and mineral phase analysis of TiO2 powder have been characterized by X-ray diffraction (XRD) and Scanning Electron Microscopy (SEM). Results show that different preparation conditions of gel such as reactants concentration, accelerator, starter concentration, time and temperature of calcination have a large influence on the properties of the produced powder. Calcination time and temperature can improve the crystallization of TiO2 powders and can be an accelerator factor for converting amorphous phase to anatase or rutile phase. The results obtained show that the anatase to rutile transformation is started at about 750oC and the best size of produced powder grain is 20-25 nm.

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Journal of Nano Research (Volume 11)

Pages:

73-77

DOI:

https://doi.org/10.4028/www.scientific.net/JNanoR.11.73

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Online since:

May 2010

Authors:

A.A. Rohani, M. Tabrizi, S. Manafi, H. Badiei

Keywords:

Anatase, Gelcasting, Morpholoy, Nanocrystal, Rutile, TiO₂

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References

[1] M. Salari, M. Mosavi, Z, Mosahfi, P. Marashi: Synthesis of nano-TiO2 powder by mechano- chemical reduction of titanium sulfate, 2th Nanotechnology Conference, Kashan, Iran, (2007).

Google Scholar

[2] Y. Gao et al.: Ceram. Inter. Vol. 30 (2004), p.1365.

Google Scholar

[3] J. Yang et al.: Mater. Sci. Eng. C Vol. 15 (2001), p.183.

Google Scholar

[4] I. Kim et al.: J. Etro. S. Sci. Eng. (2006).

Google Scholar

[5] S. Yang et al.: Mater. Chem. Phys. Vol. 77 (2002), p.501.

Google Scholar

[6] B. Li et al.: Materials Chemistry and Physics Vol. 78 (2002), p.184.

Google Scholar

[7] A.V. Maragan et al.: Mater. Letters Vol. 60 (2000), p.479.

Google Scholar

[8] Y. Li et al.: J. Solid State Chem. Vol. 177 (2004), p.1372.

Google Scholar

[9] Z. Yuan and L. Zang: Nanostruct. Mater. Vol. 10 (1998), p.1127.

Google Scholar

[10] S.R. Dhage et al. : Mater. Letters Vol. 58 (2004), p.2310.

Google Scholar

[11] H. Jazaeri and H. Majidi: Application of nano-TiO2 powder in waste water treatment, First Conference on Application of Nanotechnology in the Environment, Tehran, Iran, (2008).

Google Scholar

[12] J. Liqiang et al.: J. Solid State Chem. Vol. 177 (2004), p.3357.

Google Scholar