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通过界面聚合来制造具有s-Triazine环的化,用于耐酸纳米过

Zhuangzhuang Tian^1,2, Yun Yin^1,2, Jiandong Wang^1,2

¹School of Chemical Engineering, Sichuan University, Chengdu 610065, China.

|August 27, 2025

概括

这项研究引入了由聚乙烯胺 (PEI) 和化 (CC) 制成的抗酸纳米过膜. 这些PEI-CC膜有望通过有效去除金属杂质来净化工业酸性流,如酸.

科学领域:

材料科学
化学工程
分离科学

背景情况:

传统的纳米过 (NF) 膜在酸性环境中面临降解问题,限制了它们在工业酸性处理中的使用.
由于多价金属离子杂质,湿处理酸的净化具有挑战性,并且NF技术在这种恶劣条件下尚不发达.

研究的目的:

开发新的耐酸纳米过膜,以有效净化酸性工业流.
研究这些膜在模拟工业条件下从酸中去除金属杂质的性能.

主要方法:

通过聚乙烯胺 (PEI) 和化 (CC) 的界面聚合 (IP) 来制造耐酸NF膜.
使用直角实验优化IP过程以达到所需的膜性质 (负电荷,MWCO为337Da).
在特定的压力和温度条件下,在模拟的酸溶液 (20% P2O5,2 g/L Fe3+,2 g/L Al3+,2 g/L Mg2+) 中测试膜性能.

主要成果:

开发的PEI-CC膜显示出56%的Fe,Al和Mg离子被排斥.
的透率超过97%,表明有效的分离.
在48小时的动态酸透试验中表现出极好的耐酸性.

结论:

新型PEI-CC纳米过膜具有出色的抗酸性和有效的杂质去除能力.
简单的制造工艺和强大的性能表明在酸性流处理中具有重要的工业应用潜力.

关键词:

耐酸性接口聚合纳米过酸的使用选择性分离

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