以水相合成CuBTC的方法为基础,通过简单、低成本的逐层生长法制备PET(聚对苯二甲酸乙二醇酯)@CuBTC复合纤维膜。采用静电纺丝和后处理两步成功控制PET纤维的表面形貌,通过调节生长周期控制CuBTC生长尺寸形貌,制备了纤维直径均匀、比表面积高、骨架晶体层致密牢固且尺寸适中的PET@CuBTC复合纤维膜。结果表明,该方案有效解决了粉末形态MOF应用受限的问题,并证明其在高效过滤及抑菌方面具有潜在应用价值。

Polyethylene terephthalate (PET)@CuBTC composite fiber membranes are prepared through a simple,low-cost layer-by-layer growth method based on CuBTC,which is made via aqueous phase synthesis method.Surface morphology of PET fibers produced is successfully controlled through two steps of electrospinning and post-treatment.The growth size and morphology of CuBTC is controlled through adjusting the growth cycle,and PET@CuBTC composite fiber membranes with uniform fiber diameter,high specific surface area,and dense,firm and moderate size of backbone crystal layer are prepared.Results show that this scheme effectively solves the problem that the powder form of MOF limits its application,and demonstrates the potential application value of PET@CuBTC composite fiber membranes in high efficiency filtration and bacterial inhibition.

田鹏(1998-),男,硕士生,研究方向为静电纺丝纳米纤维,asd1016715897@163.com;克力木·吐鲁干(1986-),男,博士,讲师,研究方向为先进制膜技术,通讯联系人,kream0401@163.com。