Oxidation Degradation of Rhodamine B in Aqueous by UV/S₂O₈²⁻ Treatment System

Figure 7

UV/Vis spectral changes of RhB with UV/K₂S₂O₈ treatment system. Conditions: [RhB] = 0.02 mmol/L, [K₂S₂O₈] = 0.4 mmol/L, no pH adjustment.