Experimental parameters
Experimental results
Pseudo-first order model
Adsorption efficiency (%)
Photocatalytic degradation efficiency (%)
K
app
(min
-1
)
t
1/2
(min)
R
2
(%)
Band gap of
semiconductors (eV)
Zn O (3.2eV)
10.510
95.018
0.044
15.753
94.4
Ti O
2
(3.3eV)
13.479
93.342
0.045
15.403
98.5
Ce O
2
(2.6eV)
8.000
14.928
0.003
231.049
49.0
Al
2
O
3
(5.6eV)
4.207
7.905
0.001
693.147
88.7
Fe
2
O
3
(3.7eV)
5.151
4.723
0.001
693.147
34.0
Table 3:
Kinetic parameters of photocatalytic degradation of CR as a function of band gap of semiconductors ([CR]= 20mg/L, [Catalyst]= 0.5g/L, pH=8, T=298K, λ
max
=365 nm and I=90 J /cm
2
).
