The separation of harmful substances by supramolecular crosslinking polymers is the focus of current research. As far as it is known, supramolecular crosslinking systems based on electrospun nanofibers are rarely reported. However, electrospun nanofibers should be promising candidates for interfacial crosslinking substrates because of their adjustable morphology and can be doped with different functional nanoparticles. In this study, β‐cyclodextrin and acyl chloride compounds are interfacially polymerized on polyacrylonitrile electrospun nanofibrous substrates with different morphologies. The diameter and orientation of electrospun nanofibrous substrates affect the dye‐filtration efficiency, with a porous membrane composed of aligned nanofibers giving the highest efficiency. Cationic dyes can be selectively filtered from mixtures of cationic and anionic dyes, and the porous supramolecular crosslinking polymers are also suitable for mixtures of various cationic dyes. When TiO₂ is present in the nanofibrous substrate, UV irradiation of the used porous composite membranes efficiently in situ degrade the absorbed dye, making the membranes self‐cleaning and thus reusable.

中文翻译：

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静电纺丝自清洁多孔交联聚合物，可有效去除染料

通过超分子交联聚合物分离有害物质是当前研究的重点。据了解，很少有基于静电纺丝纳米纤维的超分子交联体系的报道。然而，电纺纳米纤维由于其可调节的形态而应该是界面交联基材的有前途的候选者，并且可以掺杂有不同的功能性纳米颗粒。在这项研究中，β-环糊精和酰氯化合物在具有不同形态的聚丙烯腈电纺纳米纤维基质上界面聚合。电纺纳米纤维基质的直径和方向会影响染料过滤效率，而由对齐的纳米纤维组成的多孔膜则具有最高的效率。可以从阳离子和阴离子染料的混合物中选择性地过滤阳离子染料，并且多孔的超分子交联聚合物也适用于各种阳离子染料的混合物。当TiO纳米纤维基质中存在_2种元素，用过的多孔复合膜的紫外线辐射有效地原位降解了所吸收的染料，使该膜具有自清洁性，因此可重复使用。