PAN/ CB spheres modified PAN/PVP dual amphiphilic porous nanofiber membranes for high-performance oil-water separation

IF 5.4 2区化学 Q2 CHEMISTRY, PHYSICAL

Colloids and Surfaces A: Physicochemical and Engineering Aspects Pub Date : 2025-07-17 DOI:10.1016/j.colsurfa.2025.137768

Huiyi Wu, Yanxin Wang, Xiaotong Zhang, Wei Xing, Leixuan Li, Hanwen Wang, Linjun Huang, Jianguo Tang

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引用次数: 0

Abstract

Efficient treatment of oily wastewater remains a significant challenge, particularly for rapid emulsion separation under gravity-driven conditions. Among existing strategies, membrane separation has attracted considerable attention due to its high operational efficiency and simplicity. This study integrates electrospinning and electrostatic spraying to fabricate a high-performance, antifouling fibrous membrane with hierarchical roughness and amphiphilicity. The resulting porous amphiphilic PAN/PVP-PAN/CB membrane demonstrates exceptional separation performance for both oil-water mixtures and emulsions under gravity, achieving remarkable water fluxes of ∼62,946.4 L·m⁻²·h⁻¹ (mixtures) and 1780.4 L·m⁻²·h⁻¹ (emulsions), with separation efficiencies exceeding 99 % for all systems. The membrane also exhibits robust cycling stability. This work presents a novel PAN/PVP- PAN/CB nanofibrous membrane with outstanding oil-water separation capability and practical processability, offering a sustainable material solution for environmental remediation.

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PAN/ CB球改性PAN/PVP双两亲性多孔纳米纤维膜的高性能油水分离研究

有效处理含油废水仍然是一个重大挑战，特别是在重力驱动条件下快速分离乳化液。在现有的分离策略中，膜分离因其操作效率高、操作简单而备受关注。本研究将静电纺丝和静电喷涂结合在一起，制备了一种具有分层粗糙度和两亲性的高性能防污纤维膜。所得到的多孔两亲性PAN/PVP-PAN/CB膜在重力作用下对油水混合物和乳剂都有出色的分离性能，水通量为~ 62,946.4 L·m⁻²·h⁻¹ （混合物）和1780.4 L·m⁻²·h⁻¹ （乳剂），所有系统的分离效率都超过99 %。膜也表现出强大的循环稳定性。本文提出了一种新型的PAN/PVP- PAN/CB纳米纤维膜，具有优异的油水分离性能和实用的可加工性，为环境修复提供了一种可持续的材料解决方案。

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来源期刊

Colloids and Surfaces A: Physicochemical and Engineering Aspects 化学-物理化学

CiteScore

8.70

自引率

9.60%

发文量

2421

审稿时长

56 days

期刊介绍： Colloids and Surfaces A: Physicochemical and Engineering Aspects is an international journal devoted to the science underlying applications of colloids and interfacial phenomena. The journal aims at publishing high quality research papers featuring new materials or new insights into the role of colloid and interface science in (for example) food, energy, minerals processing, pharmaceuticals or the environment.