The diffractogram of (a) XRD analysis and (b) FTIR spectra of porous α-Fe2O3 powder synthesized at different iron concentrations during hydrothermal process; (―0.05 M, ―0.2 M and ―0.5 M
Table 2 The Nitrogen Adsorption-desorption data
Sample
Surface area, SBET (m2/g)
Total pore volume, Vp.Total (cm3/g)
Mean pore diameter (nm)
0.05
8.576
0.08217
37.156
0.2
15.527
0.1442
38.331
0.5
2.7823
0.025713
36.967
Oil emulsion degradation under visible light irradiation (■ photolysis of oil emulsion, ■ crushed pristine hollow fiber, ■ 0.05 M α-Fe2O3 particles, ■ F02 α-Fe2O3 particles and ■ 0.5 α-Fe2O3 particles) and (b) Oil emulsion degradation under visible light irradiation (● 0.05 hollow fiber, ●F05 hollow fiber)