Self-crystallization of uniformly oriented zeolitic imidazolate framework films at air-water interfaces
Self-crystallization of uniformly oriented zeolitic imidazolate framework films at air-water interfaces
复制标题
空气-水界面均匀取向沸石咪唑酯骨架膜的自结晶
DOI：
10.1039/c9dt02359c
复制
发表时间：
2019
影响因子：
4
通讯作者：
Li Wanbin
中科院分区：
文献类型：
--
作者：
Su Jingyi;Wu Wufeng;Li Zhanjun;Li Wanbin
气液界面具有独特的物理化学性质，在许多材料的自组装方面具有巨大的潜力。本文提出了MOF膜在空气-水界面自主自结晶的概念。面积约为20cm2的自支撑ZIF-8薄膜只能在水面上优先组装。在各向异性极性连接体的原子定义良好和两亲性界面的影响下，所制备的ZIF-8薄膜具有高度离面取向和光滑粗糙的Janus晶面。
Gas–liquid interfaces with unique physicochemical properties have great potential for the self-assembly of many materials. Herein, a concept of the autonomous self-crystallization of MOF films at air–water interfaces is reported. The free-standing ZIF-8 films with a large area of about 20 cm2 can be preferentially assembled only at the water surface. Under the influence of the atomically well-defined and amphiphilic interface on anisotropically polar linkers, the thus-prepared ZIF-8 films exhibit highly out-of-plane orientation and smooth–rough Janus crystalline facets.