Neza Rahayu Palapa, Alfan Wijaya, Patimah Mega Syah Bahar Nur Siregar, Amri Amri, Nur Ahmad, Tarmizi Taher, Aldes Lesbani
Layered double hydroxide (LDH) of Ni/Al was synthesized by coprecipitation method at pH 10 followed by the formation of composite with carbon-based material i.e., biochar (B) and graphite (G) to form Ni/Al-B and Ni/Al-G. Materials were characterized by XRD powder, FTIR, BET surface area, thermal analyses, and SEM analysis. The regeneration process and adsorption evaluated the performance of materials toward iron(II) [Fe(II)] from an aqueous solution. The results showed that the surface area of Ni/Al-B (428.94 m2/g) was increased mainly up to twenty-nine-fold than Ni/Al LDH (15.11 m2/g), while Ni/Al-G (21.59 m2/g) had slightly increased than pristine LDH. Composite of Ni/Al-B had reusability properties for Fe(II) adsorption up to five cycles and showed higher structural stability. The adsorption capacity of Ni/Al-B was 104.167 mg/g and can be a potential adsorbent to remove Fe(II) from an aqueous solution. © 2023, Gadjah Mada University. All rights reserved.
Department of Chemistry, Faculty of Mathematics and Natural Sciences, Sriwijaya University, Jl. Palembang-Prabumulih, Km. 90-32, Ogan Ilir, South Sumatra, 30862, Indonesia; Research Center of Inorganic Materials and Complexes, Faculty of Mathematics and Natural Sciences, Sriwijaya University, Jl. Padang Selasa Bukit Besar, South Sumatera, Palembang, 30139, Indonesia; Department of Environmental Engineering, Institut Teknologi Sumatera, Jl. Terusan Ryacudu, Way Hui, Lampung Selatan, 35365, Indonesia; Graduate School, Faculty of Mathematics and Natural Sciences, Sriwijaya University, Jl. Palembang-Prabumulih, Km. 90-32, Ogan Ilir, South Sumatra, 30862, Indonesia