N. Normah, N. Juleanti, N.R. Palapa, T. Taher, P.M.S.B.N. Siregar, A. Wijaya, A. Lesbani
This study aims to utilise rambutan peel waste and convert it into hydrochar then applied as an adsorbent to remove Fe(II) contaminants from aqueous solutions. Rambutan peel hydrochar (RP-HC) was prepared by hydrothermal treatment of raw RP at 200 °C. The prepared samples were characterised using XRD, FT-IR, BET, and SEM. The sample contains a lot of -NH and -OH active sites which will affect the performance of crude RP-HC and RP as adsorbents for the removal of Fe(II) from aqueous solutions. The results of the adsorption study showed that the adsorption of Fe(II) using RP-HC had a maximum adsorption capacity of 25.126 mg/L, while the RP was 14.553 mg/L and the adsorbent regeneration study showed that the adsorption effectiveness of RP and RP-HC was stable until the third cycle. © 2022 Informa UK Limited, trading as Taylor & Francis Group.
Magister Programme Graduate School of Mathematics and Natural Sciences, Sriwijaya University, Palembang, Indonesia; Department of Environmental Engineering, Institut Teknologi Sumatera, Lampung, Indonesia; Graduate School, Faculty of Mathematics and Natural Sciences, Sriwijaya University, Palembang, Indonesia; Center of Inorganic Materials and Coordination Complexes, Faculty of Mathematics and Natural Sciences, Sriwijaya University, Palembang, Indonesia
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