216
R. Sivaranjanee and P. Senthil Kumar
Table 1
Utilization of biosorbent from various sources for dye removal
Biosorbent
Adsorbate
Adsorption kinetics fit Isothermal
fit
Sorption
capacity
(mg/g)
Dose (g/L)
pH
Time (min)
Initial conc
(mg/L)
Refs.
Sludge derived
biochar
Methylene
blue
Pseudo-second-order
Langmuir
isotherm
–
6
11
–
50
[4]
NZVI-AC
Malachite
green
Pseudo-first order
Langmuir
isotherm
187.3
0.5
9
60
–
[6]
Biochar residues
from various source
Methylene
blue
Pseudo-second-order
Langmuir
isotherm
9.5
8
5–9
120
5
[12]
Corncob biochar
Methylene
blue
Pseudo-first order
Freundlich
isotherm
82.71
0.2
7
90
25
[60]
Saw dust
Methylene
blue
Pseudo-second-order
Freundlich
isotherm
58.14
3
7
90
25
[61]
Wheat straw
Methylene
blue
Pseudo-second-order
Langmuir
isotherm
46.6
62.5
100
200
400
3, 7, 11
120
80
[15]
Magnetite-modified
chicken bone biochar
Rhodamine
B
–
Freundlich
isotherm
113.31
–
10
–
40
[16]
Crop Residue
Crystal violet –
Langmuir
isotherm
–
–
9
–
–
[1]
Agricultural waste
Methyl violet Pseudo-second-order
Freundlich
isotherm
92.59
0.3
7
135
100
[17]
Rice straw
Methylene
blue
Crystal
VIOLET
Pseudo-second-order
Langmuir
isotherm
90.91
44.64
0.2–1
7
15
20
50
[19]
(continued)