Photocatalysis can only be stimulated when the light energy is larger than the semiconductor band gap. Wavelength 254 nm was chosen in this project, because the band gap of TiO2 is 3.2 eV, and a wavelength of less than 387 nm is required
Photocatalysis can only be stimulatedwhen the light energy is larger than the semiconductor bandgap. Wavelength 254 nm was chosen in this project, becausethe band gap of TiO2 is 3.2 eV, and a wavelength of less than387 nm is required