Table 3 An analysis comparing the maximum capacities of several adsorbents for pollutant removal.

From: Isotherm, kinetics, and optimization modeling of Cr(VI) ions and methylene blue dye adsorption from water by an aminobiochar hydrogel

Adsorbent

Pollutant

Qm (mg/g)

References

Co-pyrolysis of lignin and sewage sludge (SS)

MB dye

154.06

20

Sawdust biochar-O3-TETA (SDBT)

MB dye

568.16

27

Sugar beet pulp (SBP)

MB dye

714.29

105

Metal − organic framework (MOF) ZJU-48

MB dye

582.44

106

Gigantochloa Bamboo-Derived Biochar

MB dye

86.63

107

Cashew nut shell-derived activated carbon

MB dye

456.00

108

Amino Acid-Based Hydrophobic Cryogel, Poly(HEMA-MAPA)

MB dye

1304.60

109

Wheat straw and E.adenophorum

Cr (VI) ions

88.57

110

Magnetite nanoparticles

Cr (VI) ions

34.9

111

Fe-modified activated carbon from aquatic plant residue (THAC-Fe)

Cr (VI) ions

11.83

112

Rice-husk derived magnetic sorbent (RHC-Mag-2)

Cr (VI) ions

157.7

113

Pterocladia capillacea red algae its activated carbon

Cr (VI) ions

66.67

114

Active carbon derived from Lantana Camara Plant

Cr (VI) ions

26.25

115

Chitosan-malonic acid film

Cr (VI) ions

687.05

116

Chitin @metakaolin composite

Cr (VI) ions

278.88

117

Glutamic acid crosslinked chitosan membrane

Cr (VI) ions

410.70

118

Chitosan biopolymer

Cr (VI) ions

340.10

119

Amino-functionalized magnetic biochar

Cr (VI) ions

142.86

120

Amino-modified upcycled biochar

Cr (VI) ions

46.50

121

A fluorescent magnetic chitosan-based hydrogel (FMCH) incorporating Amino-Functionalized Fe3O4 nanoparticles (AF-Fe3O4 NPs) and cellulose nanofibers (CNFs) modified with carbon dots (CDs)

Cr (VI) ions

212.1

122

ABHG

MB dye

476.19

This Study

ABHG

Cr (VI) ions

1250.00

This Study