Sequential modifications of chitosan biopolymer for enhanced confiscation of Cr(VI)

Inorganic Chemistry Communications(2022)

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摘要
•Chitosan was successively modified with oxalic acid and biochar.•The adsorption capacity was found to improve from 2.062 mg g−1 for Ch to 383.8 mg g−1 for ChOxBC.•Equilibrium, isotherm, kinetics and thermodynamics studies have been carried out.•The adsorbents could be regenerated and reused in multiple cycles.
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关键词
Biopolymer,Chitosan,Crosslinking,Kinetics and isotherm study,Cr(VI) adsorption
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