Figure 9.
Photocatalytic activities and reaction rate of Fe-doped g-C3N4 nanosheets with different Fe concentrations in decomposing RhB solution under (a,b) Xenon lamp illumination and (c,d) sunlight illumination; (e) the reusability of as-prepared Fe-doped g-C3N4 photocatalyst and (f) the change of absorption maxima and absorption intensity of RhB solution at different times.