Table 4.
Parameters of porous structure for analysed sorbents, based on nitrogen vapour sorption/desorption isotherms measured at 77 K
| Sample | SBET (m2/g) | VDR (cm3/g) | VBJH (cm3/g) | Vtotal (cm3/g) | SCHg (mg g−1) |
|---|---|---|---|---|---|
| AC | 670.5 | 0.307 | 0.055 | – | 24.052 |
| CD | 24.3 | 0.006 | 0.009 | 0.018 | 0.110–0.129 |
| LD | 3.5 | 0.001 | 0.025 | 0.054 | 0.279 |
| LDC | 4.5 | 0.001 | 0.032 | 0.065 | – |
| RC | 70.3 | 0.025 | 0.380 | 0.396 | – |
| RGC | 74.7 | 0.023 | 0.171 | 0.239 | – |
SCHg sorption capacity of mercury, as milligrams per gram, SBET specific surface based on Brunauer-Emmet-Teller method, VDR micropore volume based on Dubinin-Raduszkiewicz method, VBJH mesopore volume based on Barret-Joyner-Halenda method, Vtotal total pore volume