| Summary: | 碩士 === 東海大學 === 環境科學與工程學系 === 107 === Metal-organic frameworks (MOFs), also called porous coordination polymers (PCPs), are novel porous coordination materials that combined inorganic metals ions or metal clusters with organic linkers to form one-dimensional, two-dimensional, or three-dimensional structures, such as HKUST-1 (CuBTC), MIL, IRMOFs, ZIFs, and UiO, etc. Recently, MOFs have attracted great attention due to their excellent physicochemical properties, like small size, thermal stability, tunable properties, high surface-area; therefore, they are widely used for the gas storage and adsorption, catalysis, drug delivery, and so on. However, when MOFs are applied to the removal of pollutants in solution, it is not easy to separate MOFs from solution. In order to greatly improve their performance and application field, the MOFs grown on the magnetic carrier possess high potential for easy control and specific usage. In this research, superparamagnetic nanoparticles (SiO2/Fe3O4, SM) were used as carriers, then further modified to possess functional groups of amine (-NH2) and carboxylic acid (-COOH), and finally to synthesis HKUST-1 by ultrasound-assisted layer-by layer liquid phase epitaxy (LBL LPE) to obtain magnetic MOF-inorganic materials. The parameters of growth cycles and ultrasound-assisted period were investigated to evaluate the optimal synthetic condition. Physicochemical properties of obtained materials were determined by ASAP, TEM, SEM, FTIR, XRD, SQUID and TGA. The adsorption behavior of methylene blue (MB) and Ni(II) were investigated to evaluate the adsorption performance of the obtained materials. The resulted obtained in this study indicated that the synthetic route developed in this study have successfully developed the magnetic MOF of HKUST-1 and proven to possess adsorption ability to remove MB and Ni(II) from solution.
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