Abstract
Metal-organic frameworks (MOFs) have attracted great research interest in the field of catalysis due to their porosity, high specific surface area and regular controllable crystal structure. Herein, a mesoporous MOF material (Zr-FDCA) was prepared through facile self-assemble of zirconium and 2,5-furandicarboxylic acid (FDCA) under hydrothermal conditions by using acetic acid as the modulator. The structure and composite of Zr-FDCA were characterized by XRD, FTIR, SEM, TEM, BET, TPD, XPS, ICP-OES and TG. Results revealed that Zr-FDCA exhibited porous structure with high Lewis acidity and Lewis basicity, which is favorable for Meerwein-Ponndorf-Verley (MPV) reduction. Its catalytic performance was evaluated by the hydrogenation of furfural (FAL) to furfuryl alcohol (FOL) via MPV reduction. The kinetic study demonstrated lower activation energy (63.400 kJ/mol) for MPV reduction of FAL to FOL, and a high FOL yield of 100% at 100% FAL conversion was obtained at 150 °C in 2 h. Importantly, Zr-FDCA could be recycled with no decrease in catalytic performance and little leaching of active sites. The sustainability of this conversion represents greatly improved by the process intensification based on excellent catalytic activity, fine catalyst recyclability and mild operating conditions without using gaseous hydrogen.
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