Photocatalytic Degradation of Trifluralin in Aqueous Solutions by UV/S₂O₈²⁻ and UV/ZnO Processes: A Comparison of Removal Efficiency and Cost Estimation

Table 1

Summary of the kinetic analysis results of trifluralin removal in optimal condition.

Kinetics	K		Unit	R^2
	UV/S2O8^2−	UV/ZnO		UV/S2O8^2−	UV/ZnO
Zero order	−0.0009	−0.0024	mg/L.min	0.9768	0.9940
First order	−0.0219	−0.0294	1/min	0.9367	0.9506
Second order	0.5972	0.4057	L/mg.min	0.8893	0.8869