Bactericidal effects of reactive thermal plasma synthesized titanium dioxide photocatalysts

0357692 - ÚACH 2011 RIV GB eng J - Článek v odborném periodiku
Vijay, M. - Selvarajan, V. - Ananthapadmanabhan, P.V. - Sreekumar, K.P. - Štengl, Václav - Bondioli, F.
Bactericidal effects of reactive thermal plasma synthesized titanium dioxide photocatalysts.
Journal of Physics: Conference Series. Roč. 208, - (2010), 012143/1-012143/8. ISSN 1742-6588. E-ISSN 1742-6596
Grant CEP: GA ČR GA203/08/0334
Výzkumný záměr: CEZ:AV0Z40320502
Klíčová slova: a-thermal * analytical tool * anatase phase * Bactericidal action
Kód oboru RIV: CA - Anorganická chemie

Nanocrystalline titanium oxide powder has been synthesized by reactive plasma processing. The precursor powder of TiH2 was oxidized 'in-flight' in a thermal plasma reactor to effect complete conversion of TiH2 to nano-sized TiO2 powder. Characterization of the powder by various analytical tools indicated that the powder consisted of nano-sized titanium dioxide particles consisting predominantly of the anatase phase. Bactericidal action of illuminated TiO2 on pure culture of Escherichia coli was studied. The plasma synthesized TiO2nano powder catalyst was found to be highly effective for the killing of Escherichia coli. The efficiency of photocatalytic disinfection, used to inactivate Escherischia coli as function of time is discussed.
Trvalý link: http://hdl.handle.net/11104/0195893