Table 6. Comparison of qm Values of Different Adsorbent Materials Reported in the Most Recent Literature with the as-Synthesized pVbMEG–Fe3O4.
| year | adsorbent materials | As(V) qm (mg g–1) | Cr(VI) qm (mg g–1) | B(III) qm (mg g–1) | pH | time of contact | reference |
|---|---|---|---|---|---|---|---|
| 2021 | pVbMEG–Fe3O4 | 28.2 | 12.3 | 23.7 | 6 | 24 h | this work |
| 2021 | waste foundry dust | 12.6 | 2.42 | 3 | 24–48 h | (68) | |
| 2020 | pVbNMG cryogel | 76.3 | 130.9 | 6 | 24 h | (29) | |
| 2020 | bare magnetite | 6.9 | 6 | 10 h | (69) | ||
| 2020 | magnetic thiourea-formaldehyde resin | 1.6 | 3.7 | 1–9 | 3 h | (70) | |
| 2019 | NMDG@chitosan | 19.9 | 7 | 10 h | (71) | ||
| 2019 | magnetite char | 19.9 | 6 | 1 h | (72) | ||
| 2010 | IRA-743 | 14.7 | 6 | 3 d | (73) | ||
| 2004 | IRA-743 | 29.3 | 6 | 1 h | (67) |