129
Table 5.8 Adsorption capacities of modified cellulose-based adsorbents
Adsorbent
q
max in mg g
−1
Sources
Cr(VI) Zn(II)
Cu(II)
Cd(II) Hg(II) Pb(II) Ni(II) Fe(III)
Cellulose-g-polyacrylic acid
23.9
Okieimen and Ebhoaye (1986)
Polyethyleneimine-modified cellulose
288.0
Navarro et al. (1996)
Modified cellulose beads
61.74
He et al. (1999)
Spherical cellulose Adsorbent for metal ions
83.56
Liu et al. (2002)
Modified lignocellulosic material
187.8
Saliba et al. (2005)
Cellulose-modified with p-aminobenzoic
126.18 124.54
193.3
414.5 110.4
Castro et al. (2004)
Chitin/cellulose beads
19.06
35.97
68.0
Zhou et al. (2004)
Cellulose-containing groundnut shell
7.62
4.46
3.83
Shukla and Pai (2005)
Dye- coated groundnut shell
9.57
7.6
7.49
Cellulose-containing sawdust
10.96
4.94
8.05
Dye- coated sawdust
17.09
8.71
9.87
Polymer grafted banana stalk
65.88
185.3
Shibi and Anirudhan (2006)
Cellulose-g-GMA-imidazole
75.8
48.5
O’Connell et al. (2006)
CM-cellulose/chitosan hydrogel
169.49
Zhao and Mitomo (2008)
Unsubstituted chitosan
80.7
Ngah et al. (2002)
Chemically cross-linked chitosan
59.7
Native sugarcane bagasse
1.76
2.58
Joseph et al. (2009)
Improved sugarcane bagasse
3.33
5.96
Chitosan/cellulose beads
13.02
19.81
9.34
26.3
13.2
Sun et al. (2009)
Cellulose composite with sodium
montmorillonite
22.2
Kumar et al. (2011)
Nano- hydroxyapatite- chitin composite
21.45
Gandhi et al. (2011)
Nano- hydroxyapatite- chitosan composite
26.11
(continued)
5 Cellulose-Based Adsorbents for Heavy Metal Removal