Nonhydrolytic sol-gel synthesis and antibacterial properties of nanosized TiO2
A. STOYANOVA1,*
,
M. SREDKOVA1,
A. BACHVAROVA-NEDELCHEVA2,
R. IORDANOVA2,
Y. DIMITRIEV3,
H. HITKOVA1,
TZ. ILIEV4
Affiliation
- Medical University, 5800 Pleven, Bulgaria
- Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
- University of Chemical Technology and Metallurgy, 1756 Sofia, Bulgaria
- Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
Abstract
The purpose of this study is to synthesize TiO2 by a nonhydrolytic sol-gel route and to examine its antibacterial properties. The synthesis of titania was performed by the reaction between titanium tetrachloride and benzyl alcohol at moderate temperature, followed by calcinations at 500 oC. The structure and morphology of the resulting particles were characterized by XRD and SEM. The average particles size of synthesized TiO2 (anatase) was 10-20 nm. The antimicrobial action of the as-prepared TiO2 was investigated using Escherichia coli as test microorganism. It was concluded that the obtained by nonhydrolytic sol-gel method nanosized TiO2 (anatase) could be successfully used for disinfection of water on illumination with UV light..
Keywords
Anatase TiO2, Sol-gel, Nanoparticles.
Citation
A. STOYANOVA, M. SREDKOVA, A. BACHVAROVA-NEDELCHEVA, R. IORDANOVA, Y. DIMITRIEV, H. HITKOVA, TZ. ILIEV, Nonhydrolytic sol-gel synthesis and antibacterial properties of nanosized TiO2, Optoelectronics and Advanced Materials - Rapid Communications, 4, 12, December 2010, pp.2059-2063 (2010).
Submitted at: Oct. 27, 2010
Accepted at: Nov. 29, 2010