Fe-Doped TiO2 Nanoparticles Produced via MOCVD: Synthesis, Characterization, and Photocatalytic Activity
Table 1
Effect of amount of Fe dopant on the surface area, average nanoparticle size, bandgap energy, and photocatalytic activity of TiO2 nanoparticles produced via MOCVD including the commercial Degussa P25.
Amount of Fe dopant (g)
aFe/Ti atomic ratio
bSurface area (m2/g)
cAverage nanoparticle size (nm)
Bandgap energy (eV)
dRate constant under UV irradiation (hā1)
dRate constant under fluorescent irradiation (hā1)
0
0
89.95
17.10
3.02
15.35
0.342
0.001
0.015
91.86
16.75
2.95
5.24
0.090
0.005
0.041
92.50
16.63
2.80
3.56
0.084
0.01
0.0107
95.55
16.10
2.60
3.07
0.078
0.03
0.0667
96.78
15.90
2.54
2.82
0.072
0.05
0.1317
113.19
13.59
2.00
1.40
0.042
0 (P25)
0
53.33
28.85
3.10
18.89
0.270
aDetermined using EDX [11].
bDetermined using BET method.
cCalculated using (1).
dCalculated using (2).
