Fig. 2b presents the pore size distribution for the activated carbons made in this study.
This figure shows that the pore structure consists basically of micropores, which are mainly defined by IUPAC as pores smaller than 20 A ˚ in diameter. This can be also concluded from the results of Table 1, which show a micropore volume of 0.645 cm3/g compared to a mesopore volume of 0.137 cm3/g. This revealed that A.L seed pods are good precursors for preparation of microporous activated carbon which can be used in many industrial applications.