Fig. 3: PM recovery performance of the polymers and adsorption mechanism analysis. | Nature Communications

Fig. 3: PM recovery performance of the polymers and adsorption mechanism analysis.

From: Efficient recovery and recycling/upcycling of precious metals using hydrazide-functionalized star-shaped polymers

Fig. 3

Recovery efficiency (Re) of commercial amine (bPEI and PAAm) and PAcH-series polymers for (a) Au, (b) Pd, and (c) Pt as a function of initial PM ion concentrations (Ci) (polymer concentration = 0.2 g L–1, solution pH = 2, contact time = 3 h). d Corresponding adsorption isotherms of S-PAcH(L) for three PMs (Au, Pd, and Pt) and their fits to three isotherm models. e Adsorption kinetics of S-PAcH(L) for three PMs and their fits to two kinetics models (S-PAcH(L) concentration = 0.2 g L–1, Ci = 200 mg L–1, solution pH = 2). f Comparison of the PM adsorption performance of S-PAcH(L) with those of other reported PM adsorbents.

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