Interdigitated Electrophotocatalytic Cell for Water Purification
Figure 3
Visible spectra of rhodamine 6G during photocatalytic degradation. (a) Without bias (open-circuit conditions). Exposure times are 0, 6, 24, and 70 hrs. (b) Under positive bias of 200 mV. Exposure times are 0, 4, 25, 50, and 72 hrs.