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International Journal of Photoenergy
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International Journal of Photoenergy
/
2012
/
Article
/
Tab 1
/
Research Article
Thickness Dependent on Photocatalytic Activity of Hematite Thin Films
Table 1
Grain size, magnetic properties, band gap, and related parameters of photocatalysis of hematite thin films with various film thicknesses.
Properties
1H
2H
4H
Film thickness (nm)
172
367
553
Particle size (nm)
17
35
77
Band gap (eV)
2.77
2.74
2.71
Maximal magnetization (emu/cm
3
)
4.7
8.6
22.6
Rate constant (1/min)
0.052
0.055
0.068