Table 2.

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

Substrate	Components	Crosslinker	Method	Adsorption Capacity	pH	Characterization	Ref.
SiO2-modified MA	MAA	EGDMA	FRP	7.3 mg/g	3	FTIR, UV-VIS	[78]
SiO2-NH2	DBM, β-CD	EGDMA	FRP	30.8 mg/g	3.5	FT-IR, XPS, SEM	[80]
-	PMTCAAP	EGDMA	FRP	64.8 mg/g	3.5	UV-VIS, FTIR, ¹H NMR	[112]
Vinyl functionalized Fe3O4 SiO2-NH2	BASPDA	EGDMA	FRP	42.54 mg/g	4.5	FTIR, XRD	[113]
Fe3O4	Chitosan	ECH	Condensation	147.7 mg/g	4	FTIR, EDX	[114]
-	2-HMPAD, 2-HMPAA	EGDMADVB	FRP	-	3.5	FTIR, SEM, XPS.	[115]