| Summary: | 碩士 === 中原大學 === 化學研究所 === 105 === n the first part of this study, Znic is used as the central metal, and the ligand exchange strategy is used to synthesize a series of mesoporous MOFs. The resulting series is found to have better mesoporosity with large pore sizes ranging than that of that of the parent bMOF-NDC. By using this strategy ,we synthesize 4 compounds :
[Zn8(ad)4O2(CVB)6].........bMOF-CVB
[Zn8(ad)4O2(SDC)6]......... bMOF-SDC
[Zn8(ad)4O2(CAB)6]......... bMOF-CAB
[Zn8(ad)4O2(TzDB)6]....... bMOF-TzDB
These MOFs have been characterized by the powder X-ray diffraction (PXRD) and gas adsorption/desorption measurements. In particular, we use a series of alkene (C6, C12, C18) to modify bMOF-TzDB by click reaction. we can observe the changing of the water stability of bMOF-TzDB from the result by using the contact angle detector and the powder X-ray diffraction (PXRD).
In the second part, we use Aluminum as the central metal coordinating with the organic ligand H2TzDB to synthesize the mesoporous MOFs material. By using same strategy to modify MOF with alkene (C10, C12, C18), we can get the conclusion that C18-AlTz-68 has the best water stability in the air. Placed in the air environment for several weeks still maintain its crystallinity, for the MOF material is a new development.
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