2
Activated carbon
27.78
99.04%
Langmuir
Pseudo-second-order
–
7.0
Santhi et al.
(2010)
1
Activated carbon
from cotton stalk
315.04
95%
Langmuir
–
–
9.0–10.0
Deng et al.
(2009)
Direct Yellow
12
Silver nanoparticleloaded activated
carbon
454.54
98%
Langmuir
Pseudo-second-order
Spontaneous and
endothermic
1.0
Ghaedi et al.
(2012)
Direct Blue
86 (18)
Activated carbon
prepared from
orange peels
33.78
92%
Langmuir
Pseudo-second-order
–
2.0
El Nemr et al.
(2009)
Reactive Red
23
Fly ash
2.102
97%
Langmuir
Pseudo-second-order
Spontaneous and
endothermic
7.5–8.5
Sun et al. (2010)
Reactive Blue
171
1.860
75%
Acid Black 1
10.937
97%
16
10.331
90%
10
Alkaline-treated
fly
ash
107.53
–
Langmuir
Pseudo-second-order
–
8.2–10.4
Pengthamkeerati
et al. (2010)
17
Modified red mud
–
82%
Freundlich
Pseudo-second-order
–
3.0
Zazouli et al.
(2013a)
2
Acid-activated
sintering process
red mud
336.4
98.5%
Langmuir
Pseudo-second-order
Spontaneous,
endothermic,
and exothermic
3.2
Zhang et al.
(2014)
7
60.5
63.1%
Remazol brilliant blue dye
Red mud
27.8
90%
Langmuir
Pseudo-second-order
Spontaneous and
endothermic
2–6
Ratnamala et al.
(2012)
2
Bio chars from
sewage sludge
–
–
Langmuir
Pseudo-second-order
Spontaneous and
endothermic
~ 5
Leng et al.
(2015)
1
1
Mesoporous SiO
2
nanoparticles decorated with SnO
2
quantum dots
73.15
99.4%
Langmuir
Pseudo-second-order
Spontaneous and
exothermic
6.1
Dutta et al.
(2015)
(continued)
17 Methods for the Treatment of Wastewaters Containing Dyes and Pigments
621