Technical and Structure Study of Coprecipitation Method for Nano-Titanium Dioxide

Abstract:

Nano-titanium dioxide (N-TiO2) have already been studied and applied in the different fields due to its special surface, quantum size effect and high photocatalysis etc super properties. As a kind of biomaterials, biocompatibility and corrosion resistant of titanium are closely related to the surface oxide films. In this paper, nano-titanium dioxide with uniform granularity was synthesized using coprecipitation method. The effects of reactant mixture ratio and sintering temperature on synthesized N-TiO₂ were discussed. X-ray diffraction and Fourier transform infrared spectroscopy were employed to analyze structure of N-TiO₂. The results showed that prepared N- TiO₂ were all anatase and rutile coexistence and the larger ratio of carbamide to titanium oxysulfate (CO(NH₂)₂/TiOSO₄) is propitious to formation of metatitanic acid (TiO(OH)₂) precipitate. Meanwhile, with CO(NH2)2/TiOSO4 increasing, the start time and end time of precipitate decreased. The method used in this paper was a kind of simple process and easy to do.

• Periodical: Advanced Materials Research (Volumes 418-420)
• Pages: 827-830
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.418-420.827
• Online since: December 2011
• Authors: Feng Wen, Ying Qun Chen, Yang Cao, Shi Wei Lin
• Keywords: Coprecipitation, FT-IR, TiO₂, X-Ray Diffraction (XRD)

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