Modeling and Optimization of BT and DBT Photooxidation over Multiwall Carbon Nanotube-Titania Composite by Response Surface Methodology

Table 4

ANOVA results for quadratic model of BT and DBT photooxidation.

	Mean square	value	value (BT)	Mean square	value	value (DBT)
Model	168.16	28.11	<0.0001	982.27	37.24	<0.0001
α (Temp)	1078.50	180.27	<0.0001	7589.22	287.72	<0.0001
β (pH)	38.34	6.41	0.0352	15.98	0.61	0.4588
γ (p-25)	72.57	12.13	0.0083	641.56	24.32	0.0011
αβ	5.12	0.86	0.3820	75.65	2.87	0.1288
αγ	0.045	0.0075	0.9330	146.21	5.54	0.0464
βγ	13	2.17	0.1786	27.38	1.04	0.3381
α^2	245.43	41.02	0.0002	11.71	0.44	0.5240
β^2	0.91	0.15	0.7067	313.08	11.87	0.0088
γ^2	100.15	16.74	0.0035	3.00	0.11	0.7444
Lack of fit	7.05	1.68	0.356	37.53	4.81	0.1131
R^2			0.9693			0.9767
Adj R^2			0.9349			0.9505