Preparation of two metal organic frameworks(K-β-CD-MOFs and Cs-β-CD-MOFs) and the adsorption research of myricetin
2021
Abstract Metal organic frameworks (K-β-CD-MOFs and Cs-β-CD-MOFs) were obtained on the basis of β-cyclodextrin and alkali metals (K and Cs) through a modified vapor diffusion method. This way was at 50 °C for 12 h and the toxic CTAB was replaced by green PEG20000. Meanwhile, the myricetin (MYR, 2 mg/ml) was adsorbed by the two crystals (30 mg) in the same condition at 35 °C for 42 h. The result displayed high adsorption capacity (282.39 mg/g and 308.65 mg/g). Furthermore, in order to explore adsorption mechanism, free energy of two crystals structure (K-β-CD-MOFs and Cs-β-CD-MOFs) and MYR was obtained through molecular docking, which explained adsorption mechanism by the hydrophobic interaction of the cavity and hydrogen bonding.
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