Experimental
parameters
Experimental results
Pseudo-first order model
Adsorption efficiency (%)
Photocatalytic degradation efficiency (%)
K
app
(min
-1
)
t
1/2
(min)
R
2
(%)
Initial pH
6
18.19
70.25
0.014
49.511
79.8
7
16.26
75.68
0.025
27.726
96.8
8
10.51
95.02
0.044
15.753
94.4
9
14.94
89.38
0.038
18.241
79.0
10
11.81
86.34
0.035
19.804
74.7
Table 2:
Kinetic parameters of the photocatalytic degradation of CR as a function of initial pH ([ZnO]= 0.5g/L, [CR]= 20mg/l, T=298K, λ
max
=365 nm and I=90 J /cm
2
).
