Magnetic graphene oxide/Mg-Al layered double hydroxide nanocomposite as an efficient adsorbent for removal of methylene blue: A study of equilibrium isotherms, kinetics, thermodynamic and reusability

Khooni, Maliheh Ahmadi-Kalateh; Ahmadzadeh, Hossein; Davardoostmanesh, Maryam

doi:10.1016/j.mseb.2023.117123

Cited by 8 publications

(1 citation statement)

References 45 publications

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“…It is known that MB is very harmful to human health because it can cause vomiting, shock, diarrhea, increased heart rate, tissue damage and carcinogenic causes [5,6]. Various methods can be used in removing MB dye pollutants, including coagulation, flocculation, membrane filtration, advanced oxidation process, photocatalytic degradation, and adsorption [7][8][9][10][11]. Adsorption is the most extensively utilized approach among these options due to its ease of use, low cost, and high efficacy [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Efficient Adsorption of Methylene Blue Dye Using Ni/Al Layered Double Hydroxide-Graphene Oxide Composite

Amri,

Wibiyan,

Wijaya

et al. 2024

Bull. Chem. React. Eng. Catal.

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To address environmental pollution, we developed Ni/Al layered double hydroxide-graphene oxide (Ni/Al-GO) adsorbent materials for the purpose of eliminating methylene blue (MB) dye pollutants. The adsorption process was explored by examining many experimental factors, including temperature, regeneration/reuse procedure, pH, and time, and their effects on the material. The appropriate model for the isotherm is the Langmuir isotherm. The Ni/Al-GO material achieved a maximum adsorption capacity of 61.35 mg/g for MB dye at a temperature of 60 °C. The thermodynamic characteristics indicate that the adsorption process is both endothermic and spontaneous as the temperature increases. The regeneration method demonstrated that the Ni/Al-GO material has a highly stable structure, enabling it to be utilized for five cycles with a remarkable regeneration rate of 93.49% in the fifth cycle. The pH that yielded the best results for all materials was pH 10, and the kinetic model demonstrated a pseudo second-order behavior. Copyright © 2024 by Authors, Published by MKICS and BCREC Publishing Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

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