Fig. 1: Kinetics of interfacial reaction of BiVO4 activated by sulfite.

Degradation of SMX by BiVO4, Na2SO3, Na2SO3/BiVO4, and blank systems under visible light. Experimental conditions: [SMX] = 4 μM, [Na2SO3] = 0.50 mM, [BiVO4] = 1.0 g L−1, initial pH = 7.0, λ ≥ 420 nm, and T = 25 °C. The center of the data point is the mean of the two sets of data, and error bars represent the standard deviation of the two sets of data.