Table 1.

Comparison of sulfur-containing adsorbents for adsorption of Hg²⁺ ions.

Adsorbents	Adsorption Capacity (mg g−1)	Adsorption Kinetics (min)	Surface Area (m2 g−1)	S Content (mmol g−1)	Times Reused	Organic Solvent a	Ref.
SH-SiO2/Cu3(BTC)2	210	15	/	3.9	15	+	[30]
Fe3O4@SiO2@γ-MPTMS	84	10	/	/	10	+	[31]
Thiol-graftedmagnetic polymer	254	10	156.8	1.7	3	+	[32]
Fe3O4@COFTAPB-DEBD@SH	-	20	136.6	0.24	6	+	[6]
Fe3O4@SiO2@GMA-S-SH	141	5	79.8	0.8	30	+	[33]
MPTAPs	211	10	124	3.47	10	−	This work

Notes: a: +/−, with or without consumption of organic solvent in the modification of S-containing monomer.