Fig. 9

(a) MB absorption spectra by BFO nanorod visible light (LED lamp), (b) sunlight exposure, (c) MB degradation via photocatalytic processes under visible light and (d) sunlight irradiation, (e) degradation kinetics under visible light (f) sunlight, (19.52 mg BFO, 100 ml MB, pH = 8.97, 5.02 mg/L, 195.18 W).