434
Table 16.7 Adsorption/removal performance of layered double hydroxides at different operating conditions
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)
Congo red
Calcined ZnAl–DH/
Al[OH]
3
122
1000
1
4.5 25
360
1574.4/99
Guo et al. (2018)
Zn/Cr–LDH
–
–
0.1
4
25
60
15.25/60
Rahayu et al. (2018)
Fe
3 O4@MgAl–LDH
57.2
100
0.02
–
25
30
404.6/99.8
Wu et al. (2017)
Ni/Mg/Al–LDH
179
100
0.01
7
30
(0.9–2.2) 1250
Lei et al. (2017)
NiAl–LDH
–
10
0.01
6
25
30
120.5/96.1
Bharali and Deka
(2017a)
ZnAl–LDH
104.0
100
0.01
–
25
6 h
1540/90
Huang et al. (2017)
MgZnCr–TiO
2 –(1:1:2–0.05)
LDH
170.336
100
0.05
5.5 40
40
526.32/98
Ma et al. (2017)
Fe
3 O
4 @MgAl–LDH
MgAl–LDH
Fe
3 O
4
–
100
0.01
–
25
72 h
813
520.83
133.7
(Lu et al. 2017)
Reactive red
ZnAl–LDH
104.0
100
0.01
–
25
6 h
390/22
Huang et al. (2017)
Mg–Fe–LDH
Mg–Al–Fe–LDH
Mg–Zn–Al–Fe–LDH
152.799
207.792
317.214
100
0.02
6.5 25
90
150.03/55
210.4/70
279.23/85
Samuei et al. (2017)
R. M. Moattari and T. Mohammadi