Titanium oxide anchored, reactivity

The initial rate of the photocatalytic hydrogenolysis reaction on the anchored titanium oxide was determined to be about 88 nmol (h g of catalyst), whereas with the bulk rulUe powder catalyst the value was about 13 nmol (h-g of catalyst). The concentration of the effective TP or O species in the anchored catalyst was only 3.2 x 10 mol/(g of catalyst), whereas for bulk TiOi it was 1.25 x 10 mol/(g of catalyst) (168). As a result, the photocatalytic reactivity of the anchored titanium oxide can be considered to be higher than that of bulk Ti02 catalyst by about two or three orders, of magnitude. 

Yamashita H, Honda M, Harada M, et al. Preparation of titanium oxide photocatalysts anchored on porous silica glass by a metal ion-implantation method and their photo-catalytic reactivities for the degradation of 2-propanol diluted in water. J Phys Chem B 1998 102 10707-11. 

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