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Effective Removal of Copper Ion from Aqueous Solution using Beads of Chitosan-Choline Chloride/ Glycerol Deep Eutectic Solvent
Nur Hidayah Sazali1, Kong Sein Ann2, Faiz Bukhari Mohd Suah3, Mazidatulakmam Miskam4, Nurul Yani Rahim5.
ABSTRACT
Herein, an adsorption process based on a new adsorbent was utilized
to remove copper ion (Cu(II)), an environmental pollutant, from water.
Reprocessed porous beads based on powder chitosan highly aid the
industrial treatment of water. Chitosan–deep eutectic solvent (DES) beads
were prepared from chitosan and DES. The DES used were choline chloride–
urea (DES A) and choline chloride–glycerol (DES B). Both chitosan–DES
beads were used to remove Cu(II) from an aqueous solution. Based on
the characterisation results, chitosan-DES A showed a higher chemical
and thermal stability when compared to chitosan-DES B. For the type of
adsorbents, chitosan-DES B showed a higher removal percentage of Cu(II)
(90.92 %) than chitosan-DES A (7.5 %). Therefore, chitosan-DES B was
chosen as the preferred adsorbent for Cu(II). The optimum conditions for the
removal of Cu(II) from an aqueous solution were using 0.09 g of chitosan-
DES B with 40 min of shaking time and 1 mg L-1 of initial concentration.
Affiliation:
- Universiti Sains Malaysia, Penang, Malaysia
- Universiti Sains Malaysia, Penang, Malaysia
- Universiti Sains Malaysia, Penang, Malaysia
- Universiti Sains Malaysia, Penang, Malaysia
- Universiti Sains Malaysia, Penang, Malaysia
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