Abstract
In this work, Metal-organic frameworks (MOFs) were prepared by in-situ chemical oxidative polymerization of 4,4′methylene dianiline nanopolymer (nPMDA) in the presence of Cu and Al electrodes. MOFs (nPMDA/Al and nPMDA/Cu) were used as adsorbents of dibenzothiophene (DBT) from simulated diesel fuel. The adsorbents were characterized using Fourier-transform infrared spectroscopy (FTIR), thermal gravimetric analysis (TGA), X-ray diffraction (XRD), Field emission scanning electron microscopy (FE-SEM), energy-dispersive X-ray spectroscopy (EDX), and mapping techniques. The MOFs showed the highest adsorption capacity at an initial concentration of 30 mg/L, adsorbent dose of 0.12 g, and contact time of 120 min at room temperature. The highest sulfur removal efficiency was reached up to 79.9% and %71.8 for nPMDA/Al and nPMDA/Cu, respectively. Equilibrium empirical data have been fitted by Langmuir, Freundlich and Temkin isotherms. It can be stated that the pseudo-second-order model more suited to the kinetic data related to DBT adsorption on MOFs adsorbent.
Author contributions
All authors contributed equally in the compilation of the text, the data analysis and the preparation of figures and tables. The content of the present contribution has been approved by all authors.
Data availability statement
All necessary data are present within the manuscript.
Data deposition
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Disclosure statement
No potential conflict of interest was reported by the author(s).