Table 4. Apparent rate constants for MO photodegradation over LaOCl/ZnO derived from the simplified Langmuir–Hinshelwood model.

Initial MO concentration	k app (min−1)	Linear equation	R 2
5 mg L−1	0.01791 ± 0.00154	(y = 0.01791t − 0.10208)	0.97823
10 mg L−1	0.02056 ± 0.00202	(y = 0.02056t − 0.14859)	0.97183
15 mg L−1	0.01486 ± 0.00060	(y = 0.01486t − 0.04472)	0.99521
20 mg L−1	0.01062 ± 0.00037	(y = 0.01062t + 0.02083)	0.99646
25 mg L−1	0.00808 ± 0.00076	(y = 0.00808t + 0.05403)	0.97384