Influence of Synthesis Conditions on the Physicochemical Properties and Catalytic Activity of Fe/Cr-Pillared Bentonites

Table 4

Textural properties of raw and pillared bentonites.

Samples	Surface area (m^2/g)					Pore volume (cm^3/g)				Pore diameter (Å)
	𝑆BET	𝑆ext	𝑆BJHdes	𝑉𝑡	𝑉𝑚,𝑡	𝑉𝑚,BJHdes		𝑉𝜇,HK		𝑑ort		𝑑𝑚,BJHdes		𝑑𝜇,HK
						N2	CO2	N2	CO2	N2	CO2	N2	CO2	N2	CO2
Raw Bentonite	65	38	58	0.110	0.014	0.100	0.013	0.037	0.007	68.16	33.81	37.90	13.34	4.32–4.57	4.32–4.89
Fe/Cr0.75	109	70	79	0.134	0.019	0.109	—	0.062	—	50.56	—	38.92	—	4.32–6.11	—
Fe/Cr0.75(D)	97	59	75	0.127	0.018	0.106	0.018	0.055	0.008	51.96	33.94	37.38	13.36	4.32–5.30	4.32–5.05
Fe/Cr0.75(CS)	106	67	84	0.143	0.020	0.108	0.028	0.062	0.013	51.96	33.82	37.38	13.36	4.32–5.30	4.32–5.05
Fe/Cr0.75(SS)	104	65	82	0.139	0.019	0.104	0.026	0.060	0.012	53.68	33.82	37.38	13.36	4.32–5.30	4.32–5.05
Fe/Cr0.25(D)	87	62	96	0.137	0.011	0.131	0.015	0.049	0.007	62.98	32.53	37.58	13.33	4.32–4.72	4.97–6.82