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Preparation, Optimization and Evolution of the Kinetic Mechanism of Fe-MIL-88A Metal-Organic Framework

Abstract

Fe-MIL-88A is a member of the MIL family of Metal-Organic Frameworks that has been proved efficient in many applications. The flexible porous structure and biocompatibility are its most featured properties. In order to properly put this material into use, it is important to have a detailed knowledge on its crystallization process both kinetically and experimentally. In this research the modulator assisted solvothermal formation of the MOF was assessed systematically through Response Surface Methodology design of experiments and the variations in the average particle size was modeled. The particle formation was found to be seriously affected by temperature leading to an increase in the average particle size. The morphology of the products and their particle size were observed using FESEM and two distinct morphologies of cubic and diamond-like particles were clearly distinguished. The product was further characterized using FTIR spectroscopy and XRD analysis. The kinetics of the crystallization process of Fe-MIL-88A was studied using crystallization curves. Both nucleation and growth rate constants increased with temperature. The MOF nucleation was found to be autocatalytic and it was the rate controlling stage of the whole formation process.

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Publication details

The article was received on 02 Nov 2018, accepted on 03 Dec 2018 and first published on 04 Dec 2018


Article type: Paper
DOI: 10.1039/C8CE01876F
Citation: CrystEngComm, 2018, Accepted Manuscript
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    Preparation, Optimization and Evolution of the Kinetic Mechanism of Fe-MIL-88A Metal-Organic Framework

    E. Bagherzadeh, S. M. Zebarjad, H. R. Madaah Hosseini and P. Chagnon, CrystEngComm, 2018, Accepted Manuscript , DOI: 10.1039/C8CE01876F

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