Table 2.
Formulations, element concentrations, parameters of porous structures and ratio of functional group to metal ionon the surfaces of PPTA and PPTA-AM samples.
| Samples | BET surface area (m2 g−1) | BJH desorption cumulative pore volume (cm3 g−1) | BJH desorption pore diameter (nm) | 2θ (°) | fwhm (°) | Lhkl (nm) | CI (%) | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| (110) | (200) | (211) | (110) | (200) | (211) | (110) | (200) | (211) | |||||
| PPTA | – | – | – | 20.89 | 22.98 | 28.76 | 2.38 | 2.06 | 2.48 | 4.26 | 3.86 | 3.10 | 82.06 |
| PPTA-AM-90 | 2.04 | 0.03 | 10~85 | 20.83 | 22.95 | 28.64 | 2.49 | 2.11 | 2.52 | 4.31 | 3.88 | 3.12 | 75.58 |
| PPTA-AM-70 | 6.57 | 0.04 | 5~80 | 20.79 | 22.96 | 28.61 | 2.53 | 2.12 | 2.54 | 4.35 | 3.87 | 3.13 | 74.89 |
| PPTA-AM-50 | 7.16 | 0.15 | 1~60 | 20.80 | 22.96 | 28.65 | 2.51 | 2.05 | 2.57 | 4.30 | 3.86 | 3.11 | 71.14 |
| PPTA-AM-30 | 6.32 | 0.13 | 1~65 | 20.81 | 22.93 | 28.68 | 2.50 | 2.15 | 2.55 | 4.29 | 3.86 | 3.11 | 72.91 |
| PPTA-AM-10 | 16.51 | 0.14 | 1~70 | 20.85 | 22.95 | 28.66 | 2.53 | 2.14 | 2.64 | 4.28 | 3.87 | 3.12 | 78.91 |