Figure 5

(a) UV–Vis diffuse reflectance spectra and (b) (αhν)2/n versus hν plots attached band gap values of BiOCl, Bi2WO6, 0.5%, 1%, 2%, and 4% Bi2WO6–BiOCl.

(a) UV–Vis diffuse reflectance spectra and (b) (αhν)2/n versus hν plots attached band gap values of BiOCl, Bi2WO6, 0.5%, 1%, 2%, and 4% Bi2WO6–BiOCl.