Table 1 Carbon, hydrogen, nitrogen content (excluding ash) and porous properties of the precursor and the as-prepared ACs.

From: Insight into the effects of different oxygen heteroatoms on nicotine adsorption from cigarette mainstream smoke

Sample

Elemental composition

SBET a

(m2 g−1)

Vtotal b

(cm3 g−1)

Vmicro c

(cm3 g−1)

Vmeso d

(cm3 g−1)

C (%w w−1)

H (%w w−1)

N (%w w−1)

Dried hemp stem

46.2

6.0

11.2

–

–

–

–

AC(350)

58.0

2.9

5.0

945

0.47

0.37

0.11

AC(400)

62.3

3.1

6.4

1,660

1.00

0.59

0.41

AC(450)

62.1

2.7

7.6

1,720

1.19

0.57

0.62

AC(500)

63.8

2.0

11.7

1,960

1.48

0.65

0.83

AC(550)

58.3

2.0

11.7

1,880

1.39

0.61

0.78

  1. a SBET—specific surface area, determined at 0.01 < P/P0 < 0.05 by the BET method. b Vtotal—total pore volume, determined at a P/P0 of 0.99. c Vmicro—micropore volume, determined by the DR method. d Vmeso—mesopore volume, determined by subtracting the micropore from the total pore volume.
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