Muhamad Allan Serunting, Rusnadi Rusnadi, Dian Ayu Setyorini, Bimastyaji Surya Ramadan
In this study, the effectiveness of Ce(III) ions adsorption in aqueous solution was investigated by modifying sodium alginate with magnetite nanoparticles. The magnetite nanoparticles were coated with sodium alginate (Alg-Fe 3 O 4 nanoparticles), which was prepared by the co-precipitation method. The average size of the Alg-Fe 3 O 4 nanoparticles was 13.70 nm. The optimum conditions for the adsorption process were found at pH 4, 4 hours of contact time and 0.15 g of adsorbent dosage in the batch condition. The adsorption process of Ce(III) ions followed the Langmuir isotherm. The kinetic data indicated that the intraparticle diffusion process was pseudo-second order with maximum adsorption capacity (q m ) of 31.83 mg g -1 . From this experiment, it can be concluded that Alg-Fe 3 O 4 nanoparticles had good reusability shown by their adsorption-desorption ability using 0.01 M HNO 3 as the desorption agent. © 2018 IWA Publishing.
Department of Chemistry, Institut Teknologi Sumatera, Jalan Terusan Ryacudu, Way Hui, Jati Agung, Kabupaten Lampung Selatan, Lampung, 35365, Indonesia; Department of Chemistry, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jalan Ganesha 10, Bandung, 40132, Indonesia; Environmental Engineering Department, Faculty of Engineering, Universitas Diponegoro, Jalan Prof. Soedarto, S.H. Tembalang, Semarang, 50275, Indonesia
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