Superwetting materials with opposite affinities to water and oil have been widely applied for separating oil-water system. However, separation of organic liquid mixtures remains great challenge owing to its lower surface tension differences. Herein, solvent-induced separation strategy based on the polarity reaction between the liquids and material is proposed to build superwetting surfaces in polar-apolar liquids system. The copper mesh/foam (CuM/CuF) were firstly etched via an alkaline catalyzed oxidation method to form microneedles, and then coordinated with the organic ligands to generate Metal-organic framework (MOF) nanorods on the microneedles that defined as [email protected]/[email protected], and further modified with alkanethiol, finally obtaining the [email protected]@Thiol or [email protected]@Thiol. The synergetic effect of the structural morphology and chemical compositions realized the controllable regulation of their wettability and adsorption property. The [email protected] as filtration membranes that performed superlyophobicity to apolar liquid under polar liquids was used to separate the heavy polar liquid-light apolar liquid mixtures. Besides, the [email protected]@Thiol with superlyophbicitiy to polar liquids under apolar liquids could be applied for the filtrating separation of light polar liquid-heavy apolar liquid mixtures. Moreover, the [email protected] with superlyophilic to polar liquids under apolar liquids and [email protected]@Thiol with superlyophilic to apolar liquids under polar liquids could be applied for on-demand adsorbing separation of both the heavy polar-light apolar and light poalr-heavy apolar mixtures. Thus, the superwetting MOF-based mesh/foam can selectively absorb one phase while repel the immiscible phase with opposite polarity, realizing high-efficiency separation of organic liquids via selective filtrating or absorbing.

与水和油具有相反亲和力的超湿材料已被广泛用于分离油水系统。然而，由于其较低的表面张力差异，分离有机液体混合物仍然是巨大的挑战。本文提出了一种基于液体与材料之间极性反应的溶剂诱导分离策略，以在极性-非极性液体体系中建立超湿表面。首先通过碱性催化氧化方法蚀刻铜网/泡沫（CuM / CuF）以形成微针，然后与有机配体配合以在微针上生成金属有机骨架（MOF）纳米棒，定义为[电子邮件保护] / [受电子邮件保护]，并进一步用链烷硫醇进行修饰，最终获得[受电子邮件保护] @Thiol或[受电子邮件保护] @Thiol。结构形态和化学组成的协同作用实现了对它们的润湿性和吸附性能的可控调节。作为在极性液体下对非极性液体具有超疏液性的滤膜的[电子邮件保护]被用于分离重极性液体-轻质非极性液体混合物。另外，在非极性液体下对极性液体具有超疏液性的[电子邮件保护] @Thiol可用于过滤分离轻质极性液体-重质非极性液体混合物。此外，在极性液体下对极性液体具有超亲液性的[电子邮件保护]和在极性液体下对极性极性具有超亲液性的[电子邮件保护] @Thiol可用于按需吸附分离重极性轻质极性和轻质极性物质-重质非极性混合物。从而，通过选择性过滤或吸收。