Sequential modifications of chitosan biopolymer for enhanced confiscation of Cr(VI)
Inorganic Chemistry Communications(2022)
Abstract
•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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Key words
Biopolymer,Chitosan,Crosslinking,Kinetics and isotherm study,Cr(VI) adsorption
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