Multi-component pollutant-oil-water emulsion from the fast-growing industry seriously threatens the human health and ecological environment, which poses a huge challenge to membrane technology. Recently, 2D MXene materials have shown promising and potential candidates for functional separation membranes. Herein, for the first time, a multitasking hierarchical MXene@UIO-66-(COOH)₂ composite membrane supported on nylon 66 microporous substrate was designed via a facial strategy, which possessed high chemical stability and efficient multi-component pollutant-oil-water emulsion separation performance. The promising synergistic separation performance of various oil-in-water emulsions and dye, high antifouling resistance, and excellent recyclability of MXene@UIO-66-(COOH)₂ composite membrane originated from the inherent hydrophilicity, low oil adhesion feature, and hierarchical intercalation structure of membrane. Furthermore, the chemically stable MXene@UIO-66-(COOH)₂ composite membrane exhibited outstanding corrosion resistance under strong acid (3 M HCl), alkali (1 M NaOH) and salty (Saturated NaCl) solutions. Therefore, this work provides a powerful platform for designing stable and functional 2D membrane materials for multi-component pollutant-oil-water emulsion separation in harsh chemical environments.

快速发展的行业中的多组分污染物-油-水乳液严重威胁着人类健康和生态环境，这对膜技术提出了巨大的挑战。最近，二维MXene材料已经显示出功能性分离膜的有前途和潜在的候选物。本文首次采用面部策略设计了一种尼龙66微孔基质上负载的多任务分级MXene @ UIO-66-（COOH）₂复合膜，该膜具有较高的化学稳定性和高效的多组分污染物-油-水。乳液分离性能。各种水包油型乳液和染料的协同分离性能令人鼓舞，具有高防污性，并且MXene @ UIO-66-（COOH）₂具有出色的可回收性复合膜的起源是固有的亲水性，低油粘附性和膜的分层插层结构。此外，化学稳定的MXene @ UIO-66-（COOH）₂复合膜在强酸（3 M HCl），碱（1 M NaOH）和盐溶液（饱和NaCl）下显示出出色的耐腐蚀性。因此，这项工作为设计稳定，功能强大的二维膜材料提供了一个强大的平台，该膜材料可用于恶劣化学环境中的多组分污染物-油-水乳液分离。