Table 4.

Literature comparison of adsorption capacities for cadmium ions.

Monomer	Polymerization Method	Adsorption Capacity	Reference
Allyl thiourea	Surface	0.37 mmol/g	[47]
Graphene Oxide	Surface	0.77 mmol/g	[48]
2-vinylpyridine	Precipitation polymerization	0.14 mmol/g	[49]
β-cyclodextrin	Emulsion	0.95 mmol/g	[50]
Thionine	Surface	0.309 mmol g	[51]
Aminoethyl chitosan	Emulsion	0.23 mmol/g	[52]
p(HEMA-co-MAC)	Emulsion	26.6 µmol/g	[41]
p(HEMA-co-MAC)	Chemisorption	0.05 µmol/g	[53]
p(HEMA-co-MAC)/IIP-Cd	Chemisorption	0.28 µmol/g	[53]
p(PVA-co-HA)	Metal complexation	0.47 mmol/g	[54]
Na-magadiite	hydrothermal medium condition	0.57 mmol/g	[14]
Na-magadiite-Cyanex 272	hydrothermal medium condition	0.44 mmol/g	[14]
MIP2*	Emulsion	98.33 µmol/g	This work

* poly(hydroxyethyl methacrylate N-methacryloly-(L)-cysteine methylester).