标题：Constructing composite membranes from functionalized metal organic frameworks integrated MXene intended for ultrafast oil/water emulsion separation

入藏号：WOS:000796601400002

中国科学院文献情报中心期刊分区：工程技术1区/TOP（2022）

本校作者：曾广勇; 刘永聪；林清泉; 蒲生彦; 郑思则

来源出版物：SEPARATION AND PURIFICATION TECHNOLOGY卷: 293  文献号: 121052

出版年：2022

第一地址： 成都理工大学

关键词： Composite membrane; MXene nanosheet; ZIF-8 nanoparticles; Oil/water separation

备注： 本文已入围2023年9月/10月ESI高被引论文（TOP Papers）

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摘要：Industrial development resulted to an increase in discharge of hazardous oily wastewater with multi-component, which gravely threatens human health and the ecosystem. This is a huge challenge ushered in membrane technology. Recently, two-dimensional material, MXene has been demonstrated as a potential candidate for the construction of functional membranes. A novel TA-ZIF-8@MXene metal-organic framework (MOF) composite membrane has been fabricated and exploited for oily wastewater treatment. The composite membrane (T-M4) exhibited an excellent water flux (5347.36 L.m(-2).h(-1)) after the incorporation of ZIF-8 modified by tannic acid (TA) nanoparticles. Moreover, the MOF-MXene composite membrane possessed an excellent chemical stability and high oil/water emulsion separation performance. The experimental results showed that the rejection ratios of T-M4 composite membrane for three different oil/water emulsions reached more than 98%. Furthermore, the chemically stable TA-ZIF-8@MXene/CA composite membrane showed an excellent performance having more than 84% flux recovery ratio (FRR) during multi-cycle oil/water emulsion filtration with neutral, acidic, alkaline, and salty media. In addition, molecular dynamics simulations were used to reveal the separation mechanism of the composite membrane. The investigation successfully applied MXene membrane materials to micron-level separation, which provided the reference for the application of MXene in O/W separation.

文章链接地址: https://doi.org/10.1016/j.seppur.2022.121052