Photocatalytic Degradation of Indoor Air Pollutants by Pt-TiO₂

Table 2

Experimental layout using the L32 orthogonal array and experimental results for photocatalytic oxidation.

Exp.	Factor levels						C/𝐶0			S/N𝑖
	A	B	C	D	E	F	Exp. 1	Exp. 2	Exp. 3
1	1	1	1	1	1	1	0.40	0.48	0.42	7.2
2	1	1	2	2	2	2	0.62	0.64	0.68	3.7
3	1	1	3	3	3	3	0.72	0.73	0.70	2.9
4	1	1	4	2	4	4	0.79	0.77	0.78	2.2
5	1	2	1	1	2	2	0.27	0.34	0.35	9.9
6	1	2	2	2	1	1	0.17	0.18	0.20	14.7
7	1	2	3	3	4	4	0.27	0.37	0.32	9.8
8	1	2	4	2	3	3	0.43	0.40	0.35	8.0
9	1	3	1	2	3	4	0.50	0.55	0.53	5.6
10	1	3	2	1	4	3	0.76	0.75	0.74	2.5
11	1	3	3	2	1	2	0.74	0.67	0.76	2.8
12	1	3	4	3	2	1	0.33	0.40	0.37	8.7
13	1	4	1	2	4	3	0.37	0.40	0.49	7.5
14	1	4	2	1	3	4	0.88	0.86	0.89	1.1
15	1	4	3	2	2	1	0.42	0.31	0.48	7.8
16	1	4	4	3	1	2	0.81	0.86	0.76	1.8
17	2	1	1	2	1	4	0.62	0.63	0.61	4.2
18	2	1	2	3	2	3	0.52	0.54	0.50	5.6
19	2	1	3	2	3	2	0.83	0.90	0.84	1.3
20	2	1	4	1	4	1	0.75	0.70	0.73	2.7
21	2	2	1	2	2	3	0.01	0.01	0.01	40.0
22	2	2	2	3	1	4	0.32	0.45	0.26	9.0
23	2	2	3	2	4	1	0.47	0.38	0.44	7.3
24	2	2	4	1	3	2	0.76	0.81	0.72	2.3
25	2	3	1	3	3	1	0.01	0.01	0.01	40.0
26	2	3	2	2	4	2	0.01	0.10	0.10	22.0
27	2	3	3	1	1	3	0.86	0.81	0.86	1.5
28	2	3	4	2	2	4	0.96	0.93	0.96	0.5
29	2	4	1	3	4	2	0.12	0.08	0.18	17.5
30	2	4	2	2	3	1	0.01	0.02	0.05	29.4
31	2	4	3	1	2	4	0.90	0.91	0.94	0.8
32	2	4	4	2	1	3	0.77	0.87	0.90	1.4