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具有高度选择性和耐性聚胺反透膜,用于通过芬顿辅助芳胺表面工程来进行先进的水处理

Zhengwei Pan¹, Guohao Geng¹, Sanchuan Yu¹

¹School of Chemistry and Chemical Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China.

|October 23, 2025

概括

这项研究引入了一种新的芬顿辅助接种方法,用于增强聚胺 (PA) 逆透 (RO) 膜. 这种修改改善了水的透性,选择性,并大大提高了用于先进水处理的抗性.

科学领域:

材料科学材料科学材料科学
化学工程是化学工程的重要组成部分.
环境科学环境科学

背景情况:

聚胺 (PA) 逆透 (RO) 膜遭受水透性和选择性之间的权衡,较差的抗性和有限的长期稳定性.
现有的修改策略往往无法同时解决这些挑战,阻碍了在苛刻的水处理场景中广泛应用.

研究的目的:

开发PA RO膜的协同修饰策略,使用芬顿氧化来接种芳香氨基单体.
为了提高膜的性能,包括水的透性,盐的排斥和的抵抗,以改善水处理应用.

主要方法:

采用了一种新的芬顿辅助接种技术,将芳香氨基单体 (p-aminobenzenesulfonamide,p-aminobenzoic acid,p-aminobenzenesulfonic acid) 引入PA RO膜上.
修改策略涉及通过芬顿氧化促进接种过程,从而导致膜表面的结构和化学变化.
改造膜的表征集中在评估水友性,表面电荷,芳香环堆叠,水透,盐排斥和抗性的变化上.

主要成果:

修改后的膜表现出增强的水透性和永久选择性,PA-PABA膜显示出水透性和永久选择性的显著增加.
观察到耐药性的显著改善,经过大量暴露于活性,特别是PA-SAs后,修改后的膜保持高NaCl排斥.
接种过程成功地改变了表面特性,包括水友性和电荷,并诱导了PA骨干中芳香环堆叠的重新排列.

结论:

芬顿辅助芳氨酸接种为制造高性能RO膜提供了可扩展和有效的方法.
这种方法解决了传统PA膜的关键局限性,为延长膜在水处理中的使用寿命提供了一个有希望的解决方案.
开发的技术具有重要的工业潜力,用于生产强大高效的膜,用于先进的净化水.

关键词:

芳氨酸胺接种芳氨酸胺接种芳香堆叠芳香堆叠是一种芳香堆叠.耐的RO膜膜具有耐的性能.聚胺膜膜是一种聚胺.表面性质调制的表面性质调制

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