Table 7 Analogy of various Fe3O4/C adsorbent characterization for the Cr(VI) and heavy metalsremoval.
Adsorbent (Fe3O4/activated carbon) | VSM MMax (emu/g) | Kinetic | Isotherm | SBET (m2/g) | Heavy metals | Ref |
|---|---|---|---|---|---|---|
Magnetic pinecone (MNP-PCP) | 37.50 | Pseudo-second-order | Langmuir | – | Cr(VI) | |
(Fe3O4/AC) sunflower head waste | 52.2 (Am2/kg) | Pseudo-second-order | Langmuir | 51.1 | {Cr(VI) Cu(II) Cd(II)} | |
Fe3O4-BAC | 22.00 | Pseudo-first order | Freundlich | – | Cr(VI) | |
Fe3O4/AC from termite feces | – | Pseudo-second-order | Sips | 699 | Cr(VI) | |
Fe3O4/AC from alga | 12.04 | Pseudo-second-order | Freundlich | – | Cr(VI) | |
(Fe-MCNs) magnetic mesoporous carbon nanospheres | – | Pseudo-second-order | Langmuir | 619 | Cr(VI) | |
Fe3O4/C-EG core–shell | 51.1 | Pseudo-second-order | Langmuir | 69.70 | Cd(II) | |
Fe3O4/C | 30.34 | Pseudo-second-order | Freundlich | 759 | Cr(VI) | This study |
