Solubility and Selectivity Effects of the Anion on the Adsorption of Different Heavy Metal Ions onto Chitosan

The biopolymer chitosan is a very efficient adsorber material for the removal of heavy metal ions from aqueous solutions. Due to the solubility properties of chitosan it can be used as both a liquid adsorber and a solid flocculant for water treatment reaching outstanding adsorption capacities for a...

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Published in:Molecules (Basel, Switzerland) Switzerland), 2020-05, Vol.25 (11), p.2482
Main Authors: Weißpflog, Janek, Gündel, Alexander, Vehlow, David, Steinbach, Christine, Müller, Martin, Boldt, Regine, Schwarz, Simona, Schwarz, Dana
Format: Article
Language:English
Subjects:
Adsorption
anions
Anions - chemistry
Biopolymers - chemistry
chitosan
Chitosan - chemistry
heavy metal ions
Metals, Heavy - chemistry
Water - chemistry
water treatment
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cited_by cdi_FETCH-LOGICAL-c465t-aa0ec22261b9ed0c18751412d7e0d5c056bf406d467873187db080e30370fb3
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container_title Molecules (Basel, Switzerland)
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creator Weißpflog, Janek
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description The biopolymer chitosan is a very efficient adsorber material for the removal of heavy metal ions from aqueous solutions. Due to the solubility properties of chitosan it can be used as both a liquid adsorber and a solid flocculant for water treatment reaching outstanding adsorption capacities for a number of heavy metal ions. However, the type of anion corresponding to the investigated heavy metal ions has a strong influence on the adsorption capacity and sorption mechanism on chitosan. In this work, the adsorption capacity of the heavy metal ions manganese, iron, cobalt, nickel, copper, and zinc were investigated in dependence on their corresponding anions sulfate, chloride, and nitrate by batch experiments. The selectivity of the different heavy metal ions was analyzed by column experiments.
doi_str_mv 10.3390/molecules25112482
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subjects Adsorption
anions
Anions - chemistry
Biopolymers - chemistry
chitosan
Chitosan - chemistry
heavy metal ions
Metals, Heavy - chemistry
Water - chemistry
water treatment
title Solubility and Selectivity Effects of the Anion on the Adsorption of Different Heavy Metal Ions onto Chitosan
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