1 3
Topics in Current Chemistry (2019) 377:22
given by e a (x) =
∑
q
,in
n ph,abs (x)
n ph,T Δx
, where q ,in is the incident radiation flux of wavelength
λ, n ph,abs (x) represents the number of photons of wavelength λ absorbed in a cell of
position x, n ph,T is the total number of photons considered in the simulation, and Δx is
the length of the cell. Figure 13 shows simulated LVRPA profiles for different photocatalyst concentrations in the slurry reactor. For high catalyst loads, highly nonuniform
profiles are found, with very high LVRPA values near the irradiated window (x = 0). On
the contrary, for low catalyst loads, more uniform profiles with low LVRPA values are
observed.
0
1
2
3
4
5
6
7
8
0
0 .5
1
1 .5
2
2 .5
x (cm)
e
a
(x) x 10
8
(einstein/cm
3
s)
Fig. 13 LVRPA profiles for different catalyst concentrations: 0.1 g L
−1 ( ------- ); 0.25 g L
−1 ( ------- );
0.5 g L
−1 ( ------- ); 1.0 g L
−1 ( ------- ). Reprinted with permission from [8]. Copyright 2015 Springer
Nature
0.0
0.5
1.0
1.5
2.0
2.5
0.10 g/L
0.25 g/L
0.50 g/L
1.00 g/L
(x)>
Vr Einstein/cm 3
s]x10 9
Fig. 14 Volume-averaged LVRPA as a function of photocatalyst concentration
285
Reprinted from the journal