Fig. 6
From: Boron Carbon Oxynitride as a Novel Metal-Free Photocatalyst
a Overlay UV absorbance spectra of BMH01, BMH03, BGH01, and BGH03. b Stacked photoluminescence spectra of BMH01, BMH03, BGH01, and BGH03 upon excitation at 365 nm c stacked photoluminescence lifetime decay spectrum of BMH01, BMH03, BGH01, and BGH03 monitored at a predetermined λmax for each sample. Samples were excited with 337 nm laser pulses at 298 K, d Overlay Tauc plot (αhv)1/2 vs. hv, for BMH01 (black trace) and BMH03 (green trace). The optical band gap is represented by thesolid line, while the interband state for BMH03 is represented by the red dashed line