Table 1

Experimental parameters			Experimental results			Pseudo-first order model			Experimental results			Pseudo-first order model
Experimental parameters			CR						BP4B
Initial pH solution (pH)	RC	BP4B	ADS / %	PCD /%	k_app /min^-1		t_1/2 /min	R²/%	ADS/%	PCD/%	k_app/min^-1		t_1/2/min	R² /%
	6	2	18.19	70.25	0.014		49.511	79.8	86.09	80.70	0.023		9.57	32.2
	7	4	16.13	75.68	0.025		27.726	96.8	41.51	94.19	0.037		14.29	98.3
	8	6	10.50	95.02	0.041		16.906	88.1	32.84	93.07	0.035		128.36	98.0
	9	8	14.94	89.38	0.038		18.241	79.0	3.89	97.24	0.026		26.45	95.6
	10	10	11.81	86.339	0.035		19.804	74.7	24.84	91.69	0.036		144.40	88.0

R²: Regression coefficient, ADS: Adsorption and PCD: Photocatalytic degradation

Table 1: Kinetic parameters of photocatalytic degradation of dyes in aqueous solution as a function of pH ([ZnO]=0.5g/L(for CR) and 1g/L (for BP4B), [CR]=[BP4B]=20mg/L, T=298K, λ_max=365 nm and I=90j/cm²).