Table 3 Results of N2 adsorption analyses.

From: The mechanism of iron binding processes in erionite fibres

Sample

BET surface p/p0 0.05–0.3 (m2 g−1)

BET surface p/p0 0.0–0.1 (m2 g−1)

Pore volume overall (cm3 g−1)

Pristine*

252 (5)

325 (5)

0.151 (0.130)

KCl1

12.0 (5)

 

0.0213

KCl3

11.0 (5)

 

0.0195

Fe-exchanged

73.7 (17)

 

0.0495

Fe-exchanged*

308 (7)

393 (4)

0.182 (0.151)

  1. In italics, in parenthesis, volume of micropores. Data of the pristine sample were taken from ref. 23. KCl1 and KCl3 refer to fibres subjected to, respectively, 1 and 3 KCl treatments (see Materials and Methods for details).
  2. Note: *Sample pre-treated at 65 °C for 15 hour and then at 200 °C for 2 hours.
Back to article page