436
Adsorbate
LDH hybrids (adsorbent)
Surface
area (m
2
/g)
Initial
concentration
(mg L
−1
)
Dosage
(g)
Adsorption conditions
Adsorption capacity
(mg/g) or removal
efficiency (%)
Ref.
pH T(°C) t(min)
Methylene blue CuFe–LDH (3:1)
–
20
0.2
5.6 25
18
−/100
Ma et al. (2018)
Eriochrome
black T
DPA/MgAl–LDH
140.65
20
0.01
2
25
4 h
425.16
Blaisi et al. (2018)
MgAl–, CoAl–, and NiFe–
calcined LDH
69.5
20
0.01
2
25
60
30
60
419.87/93.13
540.91/96.54
132.49/91.50
Zubair et al.
(2017b)
Bentonite–CoAl–LDH
CoAl–LDH
119.14
44.20
20
0.05
2
25
120
675.67/92.03
361.06/86.46
Mu’azu et al.
(2018)
Acid blue 74
Mesoporous Mg/Fe–LDH
85.6
13.98–55.92 0.1
9.5 25
30
62.8/95
Ahmed and
Mohamed (2017)
Safranin T dye
Ppy NF/Zn–Fe LDH
23.27
5
0.05
5
25
360
−/99.99
Mohamed et al.
(2018)
RR-120 (anionic
reactive textile
dyes)
MgAl–LDH
159
500
0.05
5
25
120
800/80
910/93
Mohamed et al.
(2018)
Direct red 23
CoFe–LDHs
108.9
20
0.5
6
25
30
−/95.6
Chen et al. (2017)
Cationic dyes
Anionic dyes
Hydrotalcite–LDH-derived
adsorbent
225
100
0.02
8
25
120
291 ± 8
48 ± 2
Stawiński et al.
(2017)
Anionic,
nonionic, and
cationic dyes
Sodium hexanesulfonate
(SHS)–MgAl–LDH
Sodium dodecanesulfonate
(SDS)–MgAl–LDH
–
100
1
9
30
24
77.5
92
Zhang et al. (2017)
Organic
pollutants
Zn–Al LDH
2ZnS/Zn–Al LDH
–
4
0.25
–
25
180
−/75
Li et al. (2017c)
Note: LDH
layered double hydroxide
Reprinted with permission of Elsevier from Daud et al. (2019)
Table 16.7 (continued)
R. M. Moattari and T. Mohammadi