In this paper, we successfully controllably synthesize continuous nanothickness MOF coatings (NTMCs) by a layer-by-layer method on a polymeric substrate. The polymeric substrate was pretreated with high energy γ-irradiation to induce a high surface density of living reactive groups, which ensure the formation of continuous surface-integrated NTMCs. SEM, FT-IR spectroscopy and XPS were used to characterize NTMCs. The thickness and morphology were tuned by the LBL cycles, and NTMCs with a thickness of ∼44 nm were obtained. The chemical bonds between the NTMCs and polymeric substrate were confirmed by XPS and EDS. Moreover, the NTMCs exhibit good performance for oil-water separation. We believe that our work will promote the design and precise synthesis of high-performance MOF based membranes for multiple practical applications in future.

中文翻译：

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通过一层又一层的方法合成的聚合物基材上的连续超薄UiO-66-NH2涂层：一种用于油水分离的有前途的膜。

在本文中，我们成功地通过逐层方法在聚合物基材上可控地合成了连续纳米厚度的MOF涂层（NTMC）。用高能γ射线对聚合物基材进行预处理，以诱导活性反应基团的高表面密度，从而确保形成连续的表面集成NTMC。SEM，FT-IR光谱和XPS用于表征NTMC。通过LBL循环调节厚度和形态，得到厚度约为44nm的NTMC。NTMC和聚合物基质之间的化学键通过XPS和EDS确认。此外，NTMC在油水分离方面表现出良好的性能。我们相信，我们的工作将在将来促进针对多种实际应用的高性能基于MOF的膜的设计和精确合成。