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Original Articles Open Access
The research about biosorption of Zn(II) by Androgaphis Paniculata leaves has been investigated through batch experiment. Based on the experiment, optimum condition for adsorption Zn (II) ion was pH 6, biosorbent dosage at 0.25 g, initial concentration of metal ion solution 2400 mg/L and contact time 15 minutes. The biosorption data were fitted to Freundlich isotherm with R2 0.9560. The maximum biosorption capacities were estimated from Freundlich isotherm model to be 86.96 mg/g. Characterization of Androgaphis paniculata was is evaluated using Fourier Transform Infra Red (FT-IR) spectroscopy and active functional group estimated were O-H group, C-H aliphatic, C=O, and C-C aliphatic. The measurement of metal ion concentration conducted by Atomic Absorption Spectroscopy (AAS) and surface analysis before and after adsorption conducted using Scanning Electron Microscopy (SEM). This study showed that Androgaphis Paniculata leaves powder could be used as an efficient adsorbent to remove Zn (II) metal ions.
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Author(s): Delia Zulkarnain Chaidir Almahdy Rahmiana Zeinand Edison Munaf
Biosorption, Androgaphis paniculata, Freundlich isotherm, Biosorption capacity, Biosorption of zinc