Synthesis and study of adsorption for ion Cu(II) from aqueous solution by chitosan beads

Nga Nguyen Thuy, Hoan Lai Thi, Anh Nguyen Duc, Hien Ho Phuong

Abstract


Chitosan beads were synthesized by sodium lauryl ether sulfate (SLES) gelation process and alkaline treatment. The characterization and morphology of chitosan beads were investigated by Fourier-transform infrared spectroscopy technique (FT-IR), optical microscope and scanning electron microscope technique (SEM). The influence of NaOH concentration, pH, reaction time and adsorption isotherm was studied. Langmuir and Freundlich adsorption models were applied to describe isothermal lines. The alkalization process enhanced significantly Cu(II) adsorption capacity of CS/SLES/NaOH to 4489,6 mg/g. The results showed that chitosan beads would be a promising material to remove heavy metals in wastewater.


Keywords


chitosan beads; ion Cu(II); adsorption

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DOI: https://doi.org/10.51316/jca.2022.049

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