Table 2.

Textural properties of pure PC and NC-X samples

Samples	S BET (m2 g−1)a	V total (cm3 g−1)b	S micro (m2 g−1)c	V micro (cm3 g−1)c	S meso (m2 g−1)d	V meso (cm3 g−1)d
PC	529	0.318	414	0.189	115	0.129
NC-1	22	0.109	0	0	22	0.109
NC-3	80	0.307	0	0	80	0.307
NC-6	86	0.383	0	0	86	0.383

^aThe surface areas (S _BET) were calculated by the multipoint BET method at the relative pressure range of P/P ₀ = 0.05–0.20

^bThe total pore volumes (V _total) were estimated at P/P ₀ = 0.993

^cMicropore surface area (S _micro) and micropore volume (V _micro) were calculated using the t-plot method

^dMesopore surface area (S _meso) and mesopore volume (V _meso) were calculated by using S _meso = S _BET − S _micro and V _meso = V _total − V _micro, respectively