Modified Layered Double Hydroxide Mg/M3+ (M3+ = Al and Cr) Using Metal Oxide (Cu) as Adsorbent for Methyl Orange and Methyl Red Dyes

Authors

  • Alfan Wijaya
    Affiliation
    Research Center of Inorganic Materials and Complexes, Faculty of Mathematics and Natural Sciences, Sriwijaya University, Jl. Padang Selasa, Bukit Besar, Palembang 30139, South Sumatra, Indonesia
  • Patimah Mega Syah Bahar Nur Siregar
    Affiliation
    Research Center of Inorganic Materials and Complexes, Faculty of Mathematics and Natural Sciences, Sriwijaya University, Jl. Padang Selasa, Bukit Besar, Palembang 30139, South Sumatra, Indonesia
  • Arini Fousty Badri
    Affiliation
    Graduate School, Faculty of Mathematics and Natural Sciences, Sriwijaya University, Jl. Padang Selasa, Bukit Besar, Palembang 30139, South Sumatra, Indonesia
  • Neza Rahayu Palapa
    Affiliation
    Graduate School, Faculty of Mathematics and Natural Sciences, Sriwijaya University, Jl. Padang Selasa, Bukit Besar, Palembang 30139, South Sumatra, Indonesia
  • Amri Amri
    Affiliation
    Research Center of Inorganic Materials and Complexes, Faculty of Mathematics and Natural Sciences, Sriwijaya University, Jl. Padang Selasa, Bukit Besar, Palembang 30139, South Sumatra, Indonesia
  • Nur Ahmad
    Affiliation
    Research Center of Inorganic Materials and Complexes, Faculty of Mathematics and Natural Sciences, Sriwijaya University, Jl. Padang Selasa, Bukit Besar, Palembang 30139, South Sumatra, Indonesia
  • Aldes Lesbani
    Affiliation
    Research Center of Inorganic Materials and Complexes, Faculty of Mathematics and Natural Sciences, Sriwijaya University, Jl. Padang Selasa, Bukit Besar, Palembang 30139, South Sumatra, Indonesia
    Graduate School, Faculty of Mathematics and Natural Sciences, Sriwijaya University, Jl. Padang Selasa, Bukit Besar, Palembang 30139, South Sumatra, Indonesia
https://doi.org/10.3311/PPch.21608

Abstract

Mg/Cr-layered double hydroxide (Mg/Cr-LDH) and Mg/Al-layered double hydroxide (Mg/Al-LDH) intercalated metal oxide (Mg/Cr-Cu and Mg/Al-Cu) were synthesized by the co-precipitation method which is indicated by the X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), and Brunauer Emmett Teller (BET) analysis. Mg/Cr-LDH intercalated metal oxide increased its surface area from 21.5 to 38.9 m2/g, while the surface area of Mg/Al-LDH from 23.2 to 30.5 m2/g. The adsorption capacity of Mg/Cr-Cu is 64.156 mg/g for methyl orange (MO) and 78.740 mg/g for methyl red (MR), and the adsorption capacity of Mg/Al-Cu is 97.087 mg/g for MO and 108.696 mg/g for MR. Equilibrium time on the adsorption process occurred at 90 minutes with adsorption kinetics followed by pseudo-second-order (PSO). The adsorption isotherm followed the Langmuir isotherm equation. Data of thermodynamic parameters indicate that the adsorption process in this study occurs spontaneously and endothermically. The regeneration results show that Mg/Cr-Cu and Mg/Al-Cu can be used for the 5 cycles regeneration process of MO and MR adsorption process. Interactions that occur between adsorbents and adsorbate include physical interactions, interactions with the involvement of hydrogen bonds, and electrostatic interactions.

Keywords:

modified LDH, metal oxide, adsorption, methyl orange, methyl red, regeneration

Citation data from Crossref and Scopus

Published Online

2023-05-23

How to Cite

Wijaya, A., Siregar, P. M. S. B. N., Badri, A. F., Palapa, N. R., Amri, A., Ahmad, N. “Modified Layered Double Hydroxide Mg/M3+ (M3+ = Al and Cr) Using Metal Oxide (Cu) as Adsorbent for Methyl Orange and Methyl Red Dyes”, Periodica Polytechnica Chemical Engineering, 67(2), pp. 173–184, 2023. https://doi.org/10.3311/PPch.21608

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