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Table 5 Adsorption capacity of chitosan-clinoptilolite and chitosan-saponite composites compared to a pure minerals

From: Natural Minerals Coated by Biopolymer Chitosan: Synthesis, Physicochemical, and Adsorption Properties

Ion

Adsorption capacity, mmol/g

Partially crosslinked chitosan-clinoptilolite composite

Clinoptilolite

Partially crosslinked chitosan-saponite composite

Saponite

Zn(II)

0.049

0.048

0.049

0.050

Cu(II)

0.115

0.113

0.131

0.129

Cd(II)

0.107

0.114

0.09

0.14

Pb(II)

0.013

0.012

0.014

0.014

Fe(III)

0.26

0.26

0.26

0.26

  1. Experimental conditions: mass of sorbents—0.1 g, volume of solution—20 ml

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