Table 2.
Comparative adsorption performance of the mentioned COFs and several benchmark adsorbents towards each adsorbate.
| COFs | Adsorbate | Capacity (mg g−1) |
Active Sites | Reference |
|---|---|---|---|---|
| Fe3O4@TpBD | BPA | 160 | Carboxyl groups | [57] |
| Hierarchically porous monolith-COF (M16) | BPA | 22 | Aldehyde and hydrazine groups | [48] |
| Fe3O4@TpPa-1 | BPA | 1220 | Amine and carbonyl groups | [58] |
| TPB-DMTP-COF-SH | Hg(II) | 4395 | Thiol and triazole functional groups | [59] |
| COOH@COF | Hg(II) | 99 | Carboxyl and thioether groups | [60] |
| TFPPy-CHYD COF | Hg(II) | 758 | Secondary amine group | [61] |
| AgNPs@COF-LZU1 | Hg(II) | 113 | - | [62] |
| T-COF | Hg(II) | 1826 | Nitrogen and oxygen atoms | [63] |
| COOH@COF | Pb(II) | 124 | Carboxyl and thioether groups | [60] |
| COF-Tz-OH | Pb(II) | 476 | Triazine and hydroxyl groups | [64] |
| COF-SH | Pb(II) | 239 | Sulfhydryl grupos | [65] |
| COF-NO2 | KTP IBP NPX |
70 94 80 |
Amino groups | [66] |
| COF-NH2 | KTP IBP NPX |
33 18 16 |
Amino groups | [66] |
| TS-COF-1 | MB RhB CR 4-NP 3-NP |
1691 625 319 369 424 |
Triazine groups | [67] |
| TS-COF-2 | MB | 377 | Triazine groups | [67] |
| F-CTF-1 | NZF NFT FZD |
351 240 196 |
Triazine groups | [68] |
| F-CTF-1 | NZF NFT FZD |
298 200 154 |
Triazine groups | [68] |
| MIL-53 (Cr) (MOF) | BPA | 421 | π-π interaction, hydrogen bonding | [69] |
| ED-MIL-101(Cr) (MOF) | NPX | 154 | Acid-base interaction | [70] |
| NH2-MIL-101(Al) (MOF) | 4-NP MB |
193 1409 |
Hydrogen bonding Electrostatic interaction |
[71,72] |
| MnO2 nanotubes@rGO (MNGH) | Pb(II) | 356 | - | [73] |
| Na+ modified rGO-Fe3O4(SMGI) | Pb(II) | 1666 | - | [74] |