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纳米级二次离子质谱法用于量化膜污染:污染层结构和化学相互作用

Mengfei Wu¹, Xinhua Wang^1,2, Pin Zhao¹

¹Jiangsu Key Laboratory of Anaerobic Biotechnology, School of Environment and Ecology, Jiangnan University, Wuxi, P. R. China.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)

|March 9, 2026

概括

纳米级二次离子质谱 (Nano SIMS) 可视化膜污染. 该技术量化了污染层,有助于理解和改进水处理技术.

科学领域:

水处理技术水处理技术
材料科学材料科学材料科学
分析化学分析化学

背景情况:

膜技术对于废水处理和资源回收至关重要.
由于缺乏高分辨率表征技术,膜污染妨碍了性能,并限制了机械理解.

研究的目的:

引入纳米级二次离子质谱 (Nano SIMS) 作为一种用于表征膜污染的工具.
为了可视化和量化前透膜 (FO) 上的污染层.

主要方法:

利用Nano SIMS绘制有机物质和相关物质在污染层中的地图.
开发了一种基于二元化的图像分析来量化聚合物体积分数.
将该技术应用于模拟污染物 (酸,Ca2+) 和真实垃圾填埋场液.

主要成果:

纳米SIMS揭示了污染层中Ca2+有机网络的形成和演变.
量化聚合物体积分数与流量下降有很强的相关性,支持热力学理论.
展示了纳米SIMS在复杂矩阵中的特异性和能力.

结论:

纳米SIMS是一种多功能,非破坏性的技术,用于膜污染研究.
为处理水的机械研究和模型开发提供了新的机会.
增强对污染过程的理解,以提高膜性能.

关键词:

离子是一种离子.前向透技术的前向透技术膜污染的污染膜污染纳米级的二次离子质谱学.有机污染是有机污染.

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