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Teoret. i eksperim. khimiya. 2006. Vol.42 No. 1. p. 23-28

Influence of Composition and Structure of Titania/Silica
on Their Photocatalytic Activity in Destruction Reaction of MB

 

E. V. Goncharuk, V. N. Mishchenko, V. I. Zarko, V. M. Gunko


Institute of Surface Chemistry, National Academy of Sciences of Ukraine
Vul. Generala Naumova 17, 03164 Kyiv, Ukraine. E-mail: vzarko@i.com.ua


Catalytic capability of titania/silica produced by flame synthesis and chemical vapor deposition (CVD) of titania onto fumed silica was compared in photocatalytic decomposition of methylene blue (MB). CVD-TiO2/SiO2 showed higher catalytic activity in decomposition of MB because of both textural fea- tures and the presence of anatase in CVD-TiO2 in contrast to fumed titania/silica.


Key word fumed titania/silica, CVD-titania/silica, methylene blue, photocatalytic decomposition.