Chitosan | chitosan / hydroxyapatite / nanomagnetic composite | Zn | 50% | [ |
Cu | 80% | |||
permutite with chitosan | Zn | 58,8 | [ |
|
Cu | 50,2 | |||
chitosan micro and nanoparticles | Zn | >90% | [ |
|
Rice bran | Zn | 95,22 | [ |
|
Cd | >80% | [ |
||
Cr(VI) | 40–50% | |||
Zn(II) | 87% | |||
Cr(VI), Ni(II) | 40–50% | [ |
||
Alginate | Cu | >90% | [ |
|
Cd | ||||
Pb, Zn | [ |
|||
Coconut fibers | Zn | 91% | [ |
|
Cu | 97% | |||
Cr(VI) | >80% | [ |
||
Agricultural waste biomass | corn cobs | Zn | 72% | [ |
Ni | 82% | |||
waste from tea leaves | Zn | 90% | [ |
|
Ni(II) | 86% | [ |
||
mango wood sawdust | Cu(II) | 60% | ||
Lignin | Cu, Cd | 90–95% | [ |
|
Pb | >90% | [ |
||
Cr(VI) | 85% | [ |
||
Lignin-chitin composite | Fe(III) | 84% | [ |
|
Cu(II) | 22% |
Lignin content [ |
18–25% | 27–33% | 17–24% |
Lignin building block composition [ |