Sol-Gel Synthesized Semiconductor Oxides in Photocatalytic Degradation of Phenol

Table 2

Degree of substrate conversion (𝐶₂₇₀ and 𝐶_TOC) and total (𝐴) and specific catalytic activity (𝑎) of investigated SO in the reaction of phenol photocatalytic degradation in water.

Sample	𝐶270, %	𝐶TOC, %	𝐴⋅10^−8, M·g^−1·sec^−1	𝑎⋅10^−11, M·m^−2·sec^−1
α-Fe2O3	—	14	0,7	0,3
WO3	—	26	1,3	2,6
ZnO	24	52	2,6	6,3
TiO2	79	85	4,2	9,2
TiO2 P25	74	91	4,5	8,6

—: the reduction of optical density does not occur.