Table 2.

Comparison of sorption capacities for several sorbents.

Sorbent	pH Range	qmax (mg·g−1)	Authors
C. colliculosa yeast	1.5	10.0	Vlachou et al. [52]
K. marxianus yeast	1.5	12.0	Vlachou et al. [52]
D. hansenii yeast	1.5	10.0	Vlachou et al. [52]
ChiFer(III) beads	4.0–5.0	13.8	This work
Cysteine-functionalized chitosan magnetic particles	6.0	15.3–17.1	Galhoum et al. [25]
Magnetic iron oxide (Fe3O4)	8.2	24.8	Tu et al. [4]
Ion imprinted polymer	7.0–7.5	35.2	Guo et al. [53]
SiO2/Carboxymethyl chitosan (CMCH)	6.9	53.0	Wang et al. [42]