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• W4384208041 endingPage "529" @default.
• W4384208041 startingPage "507" @default.
• W4384208041 abstract "The presence of dye pollutants in effluents is a significant concern due to their adverse effects on many life forms. For the purpose of removing Methylene Blue (MB) from an aqueous solution through the adsorption process, the H-MMT/MOF-5 and H-MMT/MOF-199 composites (MMT = montmorillonite, MOF = metal-organic framework) were produced. Composites made with diverse H-MMT: MOF (w/w %) ratios were used for the MB dye removal to study their adsorption characteristics over a 0–30 min time range. The 60 % H-MMT/40 % MOF-5 % and 70 % H-MMT/30 % MOF-199 composites showed the greatest amounts of MB removal. The effects of contact time, adsorbent dose, pH, and initial MB concentration on the removal of MB were studied using the central composite design (CCD) method. The process was studied using Response Surface Methodology (RSM) technique to optimize the adsorption process, and the optimum conditions were identified. For 60 % H-MMT/40 % MOF-5 % and 70 % H-MMT/30 % MOF-199, optimum MB removals of 97.52 % and 98.73 % with maximum adsorption capacities (qmax) of 192.3 and 238.09 mg g−1 were obtained. The experimental data of MB adsorption on H-MMT/MOF-5 and H-MMT/MOF-199 composites followed the Langmuir isotherm and pseudo-second-order kinetic model. Thermodynamic study demonstrated exothermic and spontaneous characters of the adsorption process. Also, MB adsorption by H-MMT/MOF-5 and H-MMT/MOF-199 composites was happened by electrostatic attraction, π-π interactions, and hydrogen bonding. The H-MMT/MOF-5 and H-MMT/MOF-199 composites based on a clay mineral H-MMT with greater specific surface area and reactive -OH groups are effective materials for developing low-cost and ecologically friendly adsorbents. According to the leaching test, H-MMT/MOF-5 and H-MMT/MOF-199 adsorbents presented good stability at pH values above 5. Therefore, the synthesized H-MMT/MOF-5 and H-MMT/MOF-199 composites could be effectively used to remove MB from water." @default.
• W4384208041 created "2023-07-14" @default.
• W4384208041 creator A5046356356 @default.
• W4384208041 creator A5079794188 @default.
• W4384208041 creator A5084061843 @default.
• W4384208041 creator A5087432277 @default.
• W4384208041 date "2023-09-01" @default.
• W4384208041 modified "2023-10-16" @default.
• W4384208041 title "Water remediation using activated montmorillonite/metal-organic framework nanocomposites: Response surface methodology, kinetic, and thermodynamic studies" @default.
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• W4384208041 doi "https://doi.org/10.1016/j.psep.2023.07.028" @default.

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