Abstract
Chitosan is naturally occurring, biodegradable, non-toxic, non-allergenic biopolysaccharide derived from chitin which turns viscous upon dissolution in mildly acidic medium. Artificially changed chitosan consolidating hydroxyl chromone was set up by responding 6-Hydroxy-4-oxo-4H-chromone-3-carb-aldehyde with chitosan; it was found to have high specific and chelating proficiency towards transition metal ion at pH 1–8. Enhanced adsorption capacity and a strong affinity for Cu2+ was observed as compared to Cd2+, Ni2+ and Co2+ at pH 4–6. Chitosan-hydroxyl-chromone was chemically synthesized and characterized by spectroscopic techniques. Potentiometric strategies affirmed the request of selectivity which was free of the physical form of chitosan-hydroxyl-chromone subsidiary. 1H NMR outcomes recommended a level of substitution (DS) extending from 32.72 to 98.21%. Antimicrobial and antioxidant activity of chitosan-hydroxyl-chromone within the series of synthesized compounds was evaluated. To improve the solubility of chitosan in water, we present a synthesis of chitosan-based chromone biopolymers and its applications in metal extractions.
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