Preparation and Kinetic Studies of Cross-Linked Chitosan Beads Using Dual Crosslinkers of Tripolyphosphate and Epichlorohydrin for Adsorption of Methyl Orange

Table 1

Adsorption capacities of several adsorbents for the methyl orange adsorption.

Adsorbent	Adsorption capacity (mg/g)	Reference
Hollow molybdenum disulfide microspheres	41.5	[37]
Polyaniline nano-adsorbent	75.9	[38]
Goethite impregnated with chitosan beads	84.0	[39]
γ-Fe2O3/SiO2/chitosan composite	34.3	[40]
Chitosan/alumina composite	35.3	[41]
Hyper-cross-linked polymer	76.9	[42]
Polyaniline on a glass plate	93.0	[43]
Magnetic iron oxide/carbon nanocomposites	72.7	[44]
Polyacrylonitrile-coated kapok hollow microtubes	34.7	[45]
Magnetic chitosan enwrapping nanosized γ-Fe2O3 and multiwalled carbon nanotubes	66.1	[46]
Dual crosslinker-TPP/ECH-chitosan bead	79.5	This work