Adsorbent

Adsorption capacity mg/g

Contact time

Particle size of adsorbent

Reference

Al-pillared bentonite clay

38.6

24 h

-80 + 230

[45]

Kaolinite

0.919

2 h

-200 mesh

[46]

Coir pith

12.82

2 h

300-600 µm

[47]

Sulphurised activated carbon

153.6

4 h

-80 + 230 mesh

[48]

Almond green hull

45.5

7 min

< 44 µm

[49]

PFB1 (fungal based biosorbent)

190

24 h

---

[50]

Natural zeolites

14.38

5.5 h

63-106 µm

[51]

Synthetic hydroxyapatit

20.19

24 h

---

[52]

EDTA-modified silica gel

20

4 h

40-63, 63-200 µm

[53]

Lemon peelnano-adsorbent

22

10 h

BSS 150-200 mesh

[14]

Magnetic chitosan Nano-adsorbent

27.5

1 min

13.5 nm

[54]

SCMNPs

104.89

10 min

11.7-24.81 nm

(current study)