Table 2 Specific surface area, pore volume and pore diameter parameters of lignite, OS-M(P) and OS-M(G).

From: Adsorption properties of Pb(II) and Cd(II) in acid mine drainage by oyster shell loaded lignite composite in different morphologies

Parameters

lignite

OS-M(P)

OS-M(G)

Specific surface area (m2/g)

32.0523

55.0809

103.9347

pore volume (cm3/g)

0.0667

0.1549

0.2765

pore diameter (nm)

8.0304

7.8464

8.3334

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