In Situ Synthesis and Characterization of ZnO/Chitosan Nanocomposite as an Adsorbent for Removal of Congo Red from Aqueous Solution

Table 3

Maximum congo red adsorption capacity of several adsorbents.

Adsorbents	(mg/g)	References
Fe3O4/Bi2S3 microspheres	92.24	[39]
MWCNTs/calcined eggshell	136.99	[40]
Magnetic CS/carrageenan ampholytic microspheres	212.7	[41]
Chitosan coated magnetic Fe3O4 particle	42.62–56.66	[42]
Zinc peroxide nanomaterial	208	[43]
ZnO microspheres	304	[44]
Mg-doped ZnO NPs	125	[45]
Hierarchical porous ZnO	334	[46]
ZnO/chitosan nanocomposite	227.3	This study