Table 1: X-ray data of the α-Fe2O3 samples synthesized. Using different molar concentrations of ferric sulfate.

Molar conc.3Average crystallite size/nm
XRDTEM

0.2 M5.03(2)13.74(3)301.3107–9
0.4 M5.03(7)13.74(1)301.91312–16
0.6 M5.03(5)13.73(9)301.61816–22