Table 1.

Concentration ratios of precursors, mean size of the hematite crystallites synthesized via hydrothermal route.

No.	Sample names	Concentration ratios of precursors ($C_{{\mathit{FeCl}}_3}$/$C_{\mathit{CTAB}})$	Mean size of the hematite crystallites
1	Nanoparticle	$C_{{\mathit{FeCl}}_3}$/$C_{\mathit{CTAB}}=0.02/0.0$	29.04
2	Sphere	$C_{{\mathit{FeCl}}_3}$/$C_{\mathit{CTAB}}=0.02/0.01$	36.36
3	Rod	$C_{{\mathit{FeCl}}_3}$/$C_{\mathit{CTAB}}=0.05/0.01$	20.52
4	Rod/Cube	$C_{{\mathit{FeCl}}_3}$/$C_{\mathit{CTAB}}=0.05/0.02$	30.68
5	Cube	$C_{{\mathit{FeCl}}_3}$/$C_{\mathit{CTAB}}=0.05/0.04$	33.08
6	Broken cube	$C_{{\mathit{FeCl}}_3}$/$C_{\mathit{CTAB}}=0.07/0.04$	36.41
7	Polyhehral	$C_{{\mathit{FeCl}}_3}$/$C_{\mathit{CTAB}}=0.03/0.04$	35.36