Figure 5
The photo absorption and charge carrier transfer properties of the catalysts. (a) UV–vis diffuse reflectance spectra of WO3, C3N4, and 0.3C3N4/WO3, (b) band gap energies of WO3 and C3N4, (c) PL spectra of WO3, C3N4, and 0.3C3N4/WO3, (d) Nyquist plots of WO3, C3N4, and 0.3C3N4/WO3.
