Mechanism and Kinetics Study for Photocatalytic Oxidation Degradation: A Case Study for Phenoxyacetic Acid Organic Pollutant

Table 3

ANOVA for the response surface quadratic model.

Source	Sum of squares	DF	Mean square	value	value
Model	7981.60	14	570.11	135.49	<0.0001	Significant
Residual	63.12	15	4.21
Lack-of-fit	49.07	10	4.91	1.75	0.2796	Not significant
Pure error	14.05	5	2.81
	= 0.9922		Adj. = 0.9848
	C.V. = 3.17		Adeq. precision = 36.091