Surfactant-Free Microwave-Assisted Synthesis of Fe-Doped ZnO Nanostars as Photocatalyst for Degradation of Tropaeolin O in Water under Visible Light

Table 3

A summary of photocatalytic conversion of Tropaeolin O in OA₁₆ matrix through Taguchi analysis.

Entry	Factor					Conversion (%)
	Catalyst loading (mg)	Temperature (°C)	Light distance (cm)	Initial pH	Irradiation time (h)
1	7.5	30	0	5	1.5	29.9
2	7.5	40	5	7	2.0	28.6
3	7.5	50	10	9	2.5	24.9
4	7.5	60	15	11	3.0	25.2
5	15.0	30	5	9	3.0	56.9
6	15.0	40	0	11	2.5	85.3
7	15.0	50	15	5	2.0	24.2
8	15.0	60	10	7	1.5	32.6
9	22.5	30	10	11	2.0	28.7
10	22.5	40	15	9	1.5	36.0
11	22.5	50	0	7	3.0	99.1
12	22.5	60	5	5	2.5	70.8
13	30.0	30	15	7	2.5	44.2
14	30.0	40	10	5	3.0	61.2
15	30.0	50	5	11	1.5	45.2
16	30.0	60	0	9	2.0	97.8