Visible Light Assisted Photocatalytic Degradation of Chromium (VI) by Using Nanoporous Fe₂O₃

Table 3

Results from N₂ sorption characterization.

Sample	Surface area (m^2g^-1)						Pore volume (cm^3 g^-1)				Average meso-/macropore size (nm)^c
	SBET		%		%	Vtotal		%		%
Nano-porous Fe2O3	354	31	11%	301	89%	0.29	0.02	7%	0.27	93%	7

BET surface area (), surface area of micropores () and surface area of meso-/macropores () determined with the t-plot method.
The percentage data denotes the percentage of surface area of micropores or meso- and macropores relative to the total surface area.
Total pores volume (), micro volume () determined with the t-plot method. The percentage data denote the percentage of pore volume of micropores relative to the total pore volume.
Average meso-/macropores size () determined from the N₂ desorption data with NLDET model.