Adsorption of Cr(VI) onto Hybrid Membrane of Carboxymethyl Chitosan and Silicon Dioxide

Table 2

Comparison of adsorption capacities for Cr(VI) by different adsorbents.

Adsorbent	Adsorption capacity (mgg^−1)	References
Crosslinked chitosan bentonite composite	89.1	[20]
Chitosan/polyvinyl alcohol/containing cerium(III)	52.9	[21]
STAC-modified rectorite	21.0	[22]
Ethylenediamine-modified crosslinked magnetic chitosan	51.8	[23]
Clarified sludge	26.3	[24]
A novel modified graphene oxide/chitosan	86.2	[25]
Chitosan-g-poly/silica gel nanocomposite	55.7	[26]
Hybrid membrane of carboxymethyl chitosan and silicon dioxide	80.7	This study