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Utilization of banana peel waste impregnated into pva/alginate polymeric beads for copper(ii) ion adsorption
Nov Irmawati Inda1, Pasjan Satrimafitrah2, Natasya Fridian Aprilia3, Veky Sarapun4, Koichiro Shiomor5.
Globally, environmental pollution is a major topic because it affects the balance of
the ecosystem. Banana peel waste is one of the major organic pollutants found in Indonesia. To
minimize the waste, banana peel waste is used as an adsorbent for inorganic pollutants removal
such as copper(II) ions. However, considering the small size of the banana peel waste, it was
impregnated into PVA/Alginate polymeric beads to increase the particle size. Thus, it can be
easily separated from the aqueous solution after extraction. The SEM image shows the
morphology of PVA/Alginate polymeric beads impregnated with and/or without banana peel
waste with different morphology in cavity and pore. The amount of banana peel waste
impregnated into polymeric beads affected the mechanical strength and density of the polymeric
beads. The optimum working pH for copper(II) ion adsorption using polymeric beads was 4
with the extracted amount of copper(II) is 1.383 mmol/g. The higher the initial concentration of
copper(II) ion present in the solution, the higher amount of copper(II) ion extracted into the
polymeric beads and reached the equilibrium condition at a higher initial concentration of
copper(II) ion. It can be concluded that the impregnation of banana peel waste into the
PVA/Alginate polymeric beads affected the morphology of polymeric beads by forming a hollow
pore inside the polymeric beads, polymeric beads well-worked at the acidic condition and the equilibrium condition of copper(II) ion adsorption achieved at a higher initial concentration of
copper(II) ion in the solution.
Affiliation:
- Tadulako University, Indonesia
- Tadulako University, Indonesia
- Tadulako University, Indonesia
- Tadulako University, Indonesia
- University of Miyazaki, Japan
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