Table 1 List of literature published on the removal of MB dye using Biochar or Biochar-based material.

From: Production and characterization of magnetic Biochar derived from pyrolysis of waste areca nut husk for removal of methylene blue dye from wastewater

Biochar

Treatment

Initial dose (g)

pH

Content time (min)

Temperature (°C)

% removal

Adsorption capacity (mg/g)

References

Chlorella vulgaris microalgal biochar

3

7

60

30

85.74

 

21

Lignin-derived porous biochar

KMnO4, MnSO4, and MnO2

20 mg

2

60

30

99.73

248.96

22

Rice husk biochar (RHB), cow dung biochar (CDB) and domestic sludge biochar (SB)

0.5–0.6 mg/l

2–11

5 dyes

7.0–99.0; 71–99 and 73-98.90%

23

Empty fruit bunch biochar

Magnetic biochar

1

2–10

120

30

31.25

24

Sugarcane bagasse Biochar

4.5

360

30

17.20

25

Cattle manure-derived biochar

 

0.01–0.5 g

3–4

 

25–35

241.99

26

Pine wood (BC-PW), pig manure (BC-PM) and cardboard (BC-PD) biochar

Microparticle

25 mg

25

25 ± 1.3

27

Walnut shell (WSC) and wood powder biochar (WPC)

ZnCl2, KOH, H2SO4, and H3PO4

20, 30, 40, 50, 80, and 100 mg/l

240

30

701.30 and 850.90

28

Date Palm Fronds waste biochar

200 mg/L

6

300

30

206.61

29

Areca nut husk biochar

H2SO4, Magnetic biochar

3

7

30

30

89

785.34

Present study