Sorbents Coupled to Solar Light TiO₂-Based Photocatalysts for Olive Mill Wastewater Treatment

Table 1

Values of absorption wavelength, energy gap, and BET surface area determined for each material.

Sample	Absorption wavelength (nm)	Energy gap (eV)	Surface area (m^2 g^−1)
Anatase TiO2	384	3.2	120
N-doped anatase TiO2	413	3.0	67
TiO2@ZY	384	3.2	216
ZY	188	3.7	175