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Table 3 Pore size characteristics of bauxite, LIB and activated alumina

From: Removal of fluoride from water using a novel sorbent lanthanum-impregnated bauxite

Pore characteristics

Bauxite

LIB

Activated alumina

BET surface area

7 m2/g

14 m2/g

242 m2/g

BJH adsorption cumulative volume of pores between 17.000 and 3000.000 Å diameter

0.09 cm3/g

0.17 cm3/g

0.29 cm3/g

BJH Desorption cumulative volume of pores between 17.000 and 3000.000 Å diameter

0.13 cm3/g

0.17 cm3/g

0.30 cm3/g

Adsorption average pore width (4 V/A by BET)

79 nm

49 nm

5 nm

BJH Adsorption average pore diameter (4 V/A)

63 nm

54 nm

5 nm

BJH Desorption average pore diameter (4 V/A)

48 nm

43 nm

5 nm