Photoresponse of Visible Light Active CM-n-TiO₂, HM-n-TiO₂, CM-n-Fe₂O₃, and CM-p-WO₃ towards Water Splitting Reaction

Figure 18

The monochromatic photocurrent density, 𝐽_𝑝(𝜆), as a function of wavelength of light, 𝜆 (nm), for HM-n-TiO₂, and unreduced n-TiO₂ under monochromatic light illumination from a Xenon lamp; using a Spectra Physics monochromator (Model 77250) with a 0.75 mm slit width. The applied potential was kept at −0.1 V/Pt for both electrodes [94].