Improving the Performance of Mg/Cr LDH by Forming Metal Oxides Mg/Cr-Ni Using Coprecipitation Method as Adsorbent for Cationic Dyes
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Graduate School of Faculty Mathematics and Natural Sciences, Sriwijaya University, Palembang, 30139, Indonesia
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Magister Programme Graduate School of Mathematics and Natural Sciences, Sriwijaya University, Palembang, 30139, Indonesia
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Research Center of Inorganic Materials and Complexes, Faculty of Mathematics and Natural Sciences, Sriwijaya University, Palembang, 30139, Indonesia
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Department of Pharmacy, Faculty of Mathematics and Natural Sciences, Sriwijaya University, Palembang, 30662, Indonesia
Publication date: 2022-06-01
Corresponding author
Aldes Lesbani
Research Center of Inorganic Materials and Complexes, Faculty of Mathematics and Natural Sciences, Sriwijaya University, Palembang, 30139, Indonesia
Research Center of Inorganic Materials and Complexes, Faculty of Mathematics and Natural Sciences, Sriwijaya University, Palembang, 30139, Indonesia
J. Ecol. Eng. 2022; 23(6):67–74
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ABSTRACT
This study aims to determine the adsorption capacity of rhodamine-B (Rh-B) and methylene blue (MB) on Mg/Cr-Ni adsorbents. Mg/Cr-Ni adsorbent was synthesized by coprecipitation method. The results of the characterization of Mg/Cr-Ni using XRD analysis showed the formation of oxides at an angle of 2θ = 31.726°, 33°, and 45.44°. The surface area of Mg/Cr-Ni is 23.139 m2/g. The adsorption capacity test for Mg/Cr-Ni for Rh-B and MB were 85.470 mg/g and 166.667 mg/g, respectively. The adsorption kinetics model followed the pseudo second order (PSO). The adsorption process is endothermic and occurs spontaneously at any temperature. Mg/Cr-Ni showed stability in the adsorption process of Rh-B and MB for 5 regeneration cycles.
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