Synthesis and Characterization of Hierarchical Porous 𝜶-FeOOH for the Adsorption and Photodegradation of Rhodamine B

Table 1

The textural properties of the as-prepared catalysts.

Sample	Surface area^a (m^2·g^−1)	Pore volume^b(cm^3·g^−1)	DDFT-ads^c (nm)	Mean pore diameter^d (nm)
α-FeOOH	217.02	0.253	2.77	4.7
α-Fe2O3-300	151.63	0.311	3.32	41.0

 ^aMultipoint BET surface area.
^bTotal pore volume at 𝑃/𝑃₀=0.97.
^cMaximum of DFT pore diameter as determined from the adsorption branch.
^dAverage pore diameter (4V/A).