期刊
CHEMSUSCHEM
卷 12, 期 6, 页码 1256-1266出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cssc.201802692
关键词
biorefinery; geminal coordinatively unsaturated sites; liquid separation; metal-organic framework; phenol
资金
- SBO project Bioleum (IWT)
- China Scholarship Council (CSC) [201407565013]
- European Commission [750391]
- FWO
- KU Leuven (CASAS)
- VLAIO
- Marie Curie Actions (MSCA) [750391] Funding Source: Marie Curie Actions (MSCA)
The capping formate anions of the metal-organic framework (MOF) zirconium benzene-1,3,5-tricarboxylate (MOF-808) were removed by a solvent exchange procedure, resulting in a formate-free MOF-808 sample containing geminal defects consisting of six coordinatively unsaturated sites (CUSs) on each of the Zr-6 nodes. Adsorption experiments with this material showed that the uptake of 4-methylguaiacol from a bio-oil mixture was proportional to the number of defects and amounted to one mole adsorbed per mole of zirconium. The selective uptake behavior of MOF-808 towards phenolic compounds was further evident from competitive adsorption experiments between furfuryl alcohol and 4-methylguaiacol as well as from the excellent (20 wt % for phenolic compounds and <7 wt % for other compounds) uptake performance for real bio-oil mixtures containing a large concentration and diversity of molecules.
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