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. 2022 Dec 5;27(23):8574. doi: 10.3390/molecules27238574

Table 2.

HMIs sorption performance by some PEC hydrogels.

PEC hydrogels HMI qmax, mg/g Comments Ref.
SL/LCS Ni(II) 411.8 Batch; Monocomponent;
Parameters: pH 7, ≈ 1h, SL/LCS ratio = 7/3;
Fitting: Langmuir/ PSO;
Reusability: >95% (5 cycles).		 [73]
SL/CMCS Pb(II) 415.6 Batch; Monocomponent/Mixture;
Parameters: pH 6, 1h, SL/CMCS ratio = 6/4;
Fitting: Langmuir/ PSO;
Selective for Pb(II) in mixture with Fe(III), Cr(III), Cd(II), Cu(II), Zn(II), Ni(II), Hg(II) and Co(II);
Reusability: >95% (5 cycles).		 [74]
CS/ALG/Ca2+ Pb(II)
Cu(II)
Cd(II)		 176.50
70.83
81.25		 Batch; Monocomponent;
Parameters: pH 5, 298 K;
Fitting: Sips/PSO.		 [75]

Abbreviations: CMCS—carboxymethyl-CS; LCS—lactate-CS.