Modification of Mg/Al-LDH Intercalated Metal Oxide (Mg/Al-Ni) to Improve The Performance of Methyl Orange and Methyl Red Dyes Adsorption Process

Nova Yuliasari (Doctoral Program, Faculty of Mathematics and Natural Sciences, Universitas Sriwijaya, Jl. Padang Selasa No. 524 Ilir Barat 1, Palembang 30139, Indonesia"})
Arini Fousty Badri (Research Center of Inorganic Materials and Coordination Complexes, Faculty of Mathematics and Natural Sciences, Sriwijaya University, Palembang, 30139, South Sumatera, Indonesia)
Alfan Wijaya (Research Center of Inorganic Materials and Complexes, Faculty of Mathematics and Natural Sciences, Sriwijaya University, Palembang, 30139, South Sumatera, Indonesia)
Patimah Mega Syah Bahar Nur Siregar (Research Centre of Inorganic Materials and Coordination Complexes, Faculty of Mathematics and Natural Sciences, Universitas Sriwijaya, Palembang, 30139, Indonesia)
Amri (Research Centre of Inorganic Materials and Coordination Complexes, Faculty of Mathematics and Natural Sciences, Universitas Sriwijaya, Palembang, 30139, Indonesia)
Mardiyanto (Doctoral Program, Faculty of Mathematics and Natural Sciences, Universitas Sriwijaya, Palembang, 30139, Indonesia)
Risfidian Mohadi (Research Center of Inorganic Materials and Coordination Complexes, Faculty of Mathematics and Natural Sciences, Sriwijaya University, Palembang, 30139, South Sumatera, Indonesia)
Aldes Lesbani (Doctoral Program, Faculty of Mathematics and Natural Sciences, Universitas Sriwijaya, Jl. Padang Selasa No. 524 Ilir Barat 1, Palembang 30139, Indonesia)

Science and Technology Indonesia
Vol. 7 No. 3 (2022): July

Modification of Mg/Al-LDH intercalated metal oxide (Mg/Al-Ni) was successfully formed by the coprecipitation method at pH 10, which is indicated by the XRD diffraction, FTIR spectrum, and BET analysis. Mg/Al-LDH increased surface area after intercalated Ni from 8.621 m2/g to 9.821 m2/g and improved performance in process regeneration which can be used in the three cycles. Mg/Al-LDH after intercalated metal oxide (Ni) increases adsorption capacity of is 69.930 mg/g to 71.429 mg/g for methyl orange (MO) and 77.519 mg/g to 98.039 mg/g for methyl red (MR). Equilibrium time on the adsorption process occurred at 90 minutes with adsorption kinetics followed pseudo-second-order (PSO). Thermodynamic parameters indicate that the adsorption process is spontaneous and endothermic with the physical adsorption process.