Removal of anthracene in water by MIL-88(Fe), NH2-MIL-88(Fe), and mixed-MIL-88(Fe) metal-organic frameworks

Zango, Z.U. and Jumbri, K. and Sambudi, N.S. and Hanif Abu Bakar, N.H. and Fathihah Abdullah, N.A. and Basheer, C. and Saad, B. (2019) Removal of anthracene in water by MIL-88(Fe), NH2-MIL-88(Fe), and mixed-MIL-88(Fe) metal-organic frameworks. RSC Advances, 9 (71). pp. 41490-41501. ISSN 20462069

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Abstract

Three adsorbents based on the metal-organic frameworks (MOFs), viz.; MIL-88(Fe), NH2-MIL-88(Fe), and mixed-MIL-88(Fe) were synthesized using a microwave-assisted solvothermal technique. The as-synthesized MOFs were characterized by X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET), field emission scanning microscopy (FESEM), X-ray photoelectron spectroscopy (XPS), thermogravimetric analysis (TGA), and Fourier transform infrared spectroscopy (FTIR). The MOFs were shown to possess highly crystalline and porous structures with specific surface areas of 1240, 941, and 1025 m2 g-1 and pore volumes of 0.7, 0.6 and 0.6 m3 g-1 for MIL-88(Fe), NH2-MIL-88(Fe) and mixed-MIL-88(Fe), respectively. Faster removal of a model polycyclic aromatic hydrocarbon, anthracene (ANT) within 25 minutes, was achieved when these MOFs were used as adsorbents in water. The removal efficiency was 98.3, 92.4 and 95.8 for MIL-88(Fe), NH2-MIL-88(Fe) and mixed-MIL-88(Fe), respectively. The kinetics and isotherms of the process were best statistically described by pseudo-second-order and Langmuir models, respectively, while the thermodynamic studies revealed the exothermic and spontaneous nature of the process. Docking simulations were found to be consistent with the experimental results with MIL-88(Fe) showing the best binding capacity with the ANT molecule. This journal is © The Royal Society of Chemistry.

Item Type: Article
Additional Information: cited By 61
Uncontrolled Keywords: Anthracene; Dyes; Fourier transform infrared spectroscopy; Organometallics; Thermogravimetric analysis; X ray photoelectron spectroscopy, Brunauer emmett tellers; Docking simulations; Field emission scanning; Metal organic framework; Metalorganic frameworks (MOFs); Removal efficiencies; Solvothermal techniques; Thermodynamic studies, Chemicals removal (water treatment)
Depositing User: Mr Ahmad Suhairi UTP
Date Deposited: 10 Nov 2023 03:26
Last Modified: 10 Nov 2023 03:26
URI: https://khub.utp.edu.my/scholars/id/eprint/11981

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