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Removal of mercury ions from aqueous solutions by crosslinked chitosan-based adsorbents: a mini review

Abstract : Abatement of mercury emissions in air and waters has become a global challenge due to the toxicity of mercury species for life, yet actual remediation techniques are limited. In particular, adsorption of mercury ions onto solids is widely used but most adsorption techniques are not specific, and in turn, removal efficiency is lower. Adsorbents developed so far include activated carbon, clay, bentonite, cellulose and chitosan. Chitosan derivatives have recently attracted research attention for water purification because their molecular frames contain a large amount of -NH2 and -OH groups that can chelate with metal ions specifically. This manuscript reviews recent advances in chitosan-based adsorbents designed to remove mercury ions from wastewater. Focus is placed on their design, synthesis, characterization, adsorption properties, adsorption mechanisms and applications.
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Submitted on : Monday, September 7, 2020 - 2:33:57 PM
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Dan Zhang, Grégorio Crini, Eric Lichtfouse, Baker Rhimi, Chuanyi Wang. Removal of mercury ions from aqueous solutions by crosslinked chitosan-based adsorbents: a mini review. Chemical Record, Chemical Society of Japan, inPress, ⟨10.1002/tcr.202000073⟩. ⟨hal-02932038⟩

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