Prueba

Solo disponible en BuenasTareas
  • Páginas : 2 (329 palabras )
  • Descarga(s) : 7
  • Publicado : 1 de agosto de 2010
Leer documento completo
Vista previa del texto
Study of the antibacterial Process of single crystals of TiO2-B nanowires

S. León1
1Depto de Física, Universidad Católica del Norte, Casilla 1280, Antofagasta, Chile
email address correspondingauthor: sleonrios@gmail.com

This work shows the enhancement of the antibacterial process by single crystals of TiO2-B nano-wires in comparison to anatase nano-particles.
The preparation ofthe single crystal of TiO2-B nano-wires was performed by one-step hydrothermal reaction at 130ºC among particles of pure anatase and NaOH aqueous solution by 6 days of reaction and calcined at 500ºCin air by 24h.
The monoclinic phase of titanium dioxide (TiO2-B) was characterized by Raman spectroscopy, atomic force microscopy (AFM), XRD, SEM and TEM. The antibacterial process of TiO2-Bnano-wires and anatase nano-particles was studied on pure culture of Escherichia Coli (E. coli), the results indicated that E. coli decrease faster for UV illuminated TiO2-B nanowires than UV illuminatedanatase nano-particles.
Antibacterial properties of TiO2-B nanowires allow new aplications on industrial field as air cleaner, paint revestiments. Also, it has application in medical industry asan antibacterial protection.

References
[1] S. Amemiya, Three Bond Technical News, 62 (2004).
2] I. A. Kartsonakis, P. Liatsi, I. Danilidis, D. Bouzarelou, G. Kordas, Journal of Physics AndChemistry of Solids, 69, 214 –221 (2008).
3] Y. Ling, J.J. Qi, X. F. Zou, X. M. Zhao, X. D. Bai, Q. L. Feng. Key Engineering Materials 280 –283, 707 – 712 (2005).

4] D. Guin, S.V. Manorama, J.N.L.Latha, Shashi Singh. J. Phys. Chem, 111, 13393 – 13397 (2007).
5] Z. Wang, G. Li, H. Peng, Z. Zhang, X. Wang. Journal of Material Science 40, 6433 –6438 (2005).

6] S-Q Sun, B. Sun, W.Zhang, D. Wang, Bull. Mater. Sci. 31, 61 – 66 (2008).

Acknowledgments

Financial support from Departamento de Física of Universidad Católica del Norte is gratefully acknowledged. Acknowledge to...
tracking img