Fig. 8From: Steering Charge Kinetics of Tin Niobate Photocatalysts: Key Roles of Phase Structure and Electronic StructureEffects of different scavengers on methyl orange degradation in the presence of SnNb2O6 under visible light irradiation (a). EPR spectra obtained from SnNb2O6 containing 0.22 M DMPO and 4.0 mg catalyst with total volume of 90% methanol/10% water (b) and 2 mL water (c) under different visible light irradiation timeBack to article page