Supported Zinc Oxide Photocatalyst for Decolorization and Mineralization of Orange G Dye Wastewater under UV365 Irradiation

Table 2

The first-order reaction rate constant k (10² min⁻¹) for operating parameter of UV intensity and initial concentration.

Effect of UV intensity		Effect of initial concentration
UV intensity, W L^−1	k	Concentration, mg L^−1	k
20	2.00	12.5	20.14
40	2.74	18.8	16.26
60	3.42	25	17.55
80	3.68	50	5.95
100	4.17	75	5.88
120	4.82