Table 7.

Chromium ion-imprinted polymer materials, performance, and characterization.

Substrate	Components	Crosslinker	Method	Adsorption Capacity	pH	Characterization	Ref.
-	1,10-phenanthroline complex, styrene, MAA	EGDMA	Bulk polymerization	-	4.5	FTIR, SEM	[139]
Fe3O4-SiO2	4-VP, HEMA	EGDMA	FRP	311.95 mg/g	2	FTIR, SEM-EDS, XRD, TGA	[140]
Fe3O4-SiO2	4-VP	EGDMA	FRP	131.40 mg/g	2	FTIR, XPS, TEM, TGA	[141]
Fe3O4-SiO2-NH2	4-VP, MAA	EGDMA	FRP	169.49 mg/g	2	FTIT, SEM-EDS	[142]