Facile Synthesis of Indium Sulfide/Flexible Electrospun Carbon Nanofiber for Enhanced Photocatalytic Efficiency and Its Application

Figure 6

UV-vis diffuse reflectance spectrum of In₂S₃, CNF, and In₂S₃/CNF-2 (a) and the direct band gap determination of In₂S₃ and In₂S₃/CNF-2 (b). The tangent at this point corresponds to the smallest absorption wavelength.

(a)

(b)