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利用添加剂辅助溶剂热法制备出了形貌和尺寸可控的多孔配位聚合物MOF-14,采用场发射扫描电子显微镜(FESEM)、X射线粉末衍射(XRD)和气体吸附等手段进行了表征.结果表明,分别以醋酸和醋酸钠作为添加剂,可以有效地调控MOF-14产物的形貌和尺寸.气体吸附测试结果表明,所有的MOF-14产物均表现出较大的比表面积和良好的CO_2捕集能力,并对CO_2/N_2具有显著的吸附选择性.同时,MOF-14产物的气体吸附性能受其形貌和尺寸的影响.此外,以醋酸钠为添加剂制备得到的MOF-14产物除了微孔以外还具有介孔,为制备具有介孔的多孔配位聚合物提供依据.
Morphology and size-controlled porous coordination polymer MOF-14 was prepared by additive-solvothermal method and characterized by field emission scanning electron microscopy (FESEM), X-ray powder diffraction (XRD) and gas adsorption .The results showed that the morphology and size of MOF-14 product could be effectively controlled by using acetic acid and sodium acetate respectively.The results of gas adsorption test showed that all the MOF-14 products showed large specific surface area and good CO 2 capture ability, and CO 2 / N 2 has significant adsorption selectivity.At the same time, the gas adsorption capacity of MOF-14 product is influenced by its morphology and size.In addition, the MOF-14 product prepared with sodium acetate as additive In addition to micropores also have mesopores, for the preparation of mesoporous porous coordination polymer provides the basis.