Sol-Gel Synthesized Semiconductor Oxides in Photocatalytic Degradation of Phenol

Table 1

Physical and chemical characteristics of the investigated semiconductor oxides.

Sample	𝑆BET (m^2·g^−1)	𝑉micropore, (cm^3·g^−1)	𝐸𝑔, (eV)	L ^a, (nm)
𝛼-Fe2O3	25,7	0,18	2,0	2000
WO3	50	0,005	2,55	20
ZnO	41	—^d	3,23	3000
TiO2	45,3	0,1	3,43	5–7
TiO2 P25^b	52	0,18	3,23	28

𝑆_BET: specific surface area data obtained from the BET-model.
𝑉_micropore: micropore volume data calculated by deBoer’s t-plot method.
𝐸_𝑔: energy band gap.
L: linear particle size.
—: not determined.
a,bPublished data.