The conventional strategies employed for introducing functional groups onto the surfaces of nanofibrous membranes (NFMs) require complicated steps. Herein, we report a simple strategy for the fabrication of negatively-charged polyethersulfone (PES) NFMs adsorbent by utilizing one-step electrospinning. Firstly, functional groups were introduced into the electrospinning solution via in-situ cross-linking co-polymerization of sodium styrene sulfonate and acrylic acid in PES solution. Then, the solution was directly used to electrospin into negatively-charged PES NFMs. Sufficient characterization methods were carried out to demonstrate the successful fabrication of the functional NFMs. Batch adsorption experiments for various kinds of dyes with different initial concentrations and pH values were carried out. The results indicated that the NFMs showed efficient adsorption capacity for cationic dye of methylene blue MB. In particular, binary dye adsorption column experiments were carried out and the membranes exhibited excellent separation efficiency of 98.29% for MB/amaranth mixture. The successful fabrication of such fascinating NFMs adsorbent by using this simple approach may provide new sights into the design and development of adsorptive materials for industrial wastewater treatment with excellent separation efficiency towards mixed dyes.

用于将官能团引入到纳米纤维膜（NFM）的表面上的常规策略需要复杂的步骤。在这里，我们报告了一种利用一步静电纺丝法制造带负电荷的聚醚砜（PES）NFMs吸附剂的简单策略。首先，通过原位将官能团引入电纺丝溶液中苯乙烯磺酸钠和丙烯酸在PES溶液中的交联共聚。然后，将溶液直接用于静电纺成带负电的PES NFM。进行了足够的表征方法以证明功能性NFM的成功制备。对具有不同初始浓度和pH值的各种染料进行了批量吸附实验。结果表明，NFMs对亚甲基蓝MB的阳离子染料具有有效的吸附能力。尤其是，进行了二元染料吸附柱实验，该膜对MB /芳烃混合物的分离效率高达98.29％。