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Original Articles Open Access
The ability of Sauropus androgynus L. Merr. as low costs biosorbent to remove Cu(II) ions from aqueous solution has been investigated. Batch method was used to determine adsorption capacity of Sauropus androgynus L. Merr. at various parameters. Adsorption capacity achieved maximum value at pH 4, initial concentration 1500 mg/L, biosorbent mass 0.1 g and contact time 15 minutes. Langmuir and Freundlich models have value of R20.9879 and 0.9263, respectively. This result showed that Langmuir model was better to describe adsorption process of Cu(II) ions in aqueous solution. FTIR analysis showed a shift at band of hydroxyl (OH) and carbonyl (C-O) groups that participated in adsorption process. SEM micrograph indicated the surface of Sauropus androgynus L. Merr. has pores, wavy and rough.
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Author(s): Chrismis Novalinda Ginting Edison Munaf Almahdy Eti Yerizeland Rahmiana Zein
Sauropus androgynus L. Merr., Copper, Isotherm adsorption, FTIR, Sauropus androgynus