Fig. 6. (a) The diffuse reflectance absorption spectrum of the as-prepared Sb2S3 sample (the inset presents the corresponding plots of (αhυ)2versus photon energy). (b) The room-temperature Raman spectrum. (c) The degradation curve for MB in the dark. (d) The degradation curves for MB using the different catalyst systems (e) the degradation curves at different MB concentrations. (f) The cycling runs for the degradation of MB.
