Elucidation on Performance and Structural Properties of Skinned Asymmetric Nanofiltration Membrane Based on Theoretical Models

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2023-06-01 DOI:10.3311/ppch.21889

Sabariah Rozali, Nurul Hannan Mohd Safari, Abdul Rahman Hassan, Roslan Umar

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Abstract

In this study, the performance and structural properties of enhanced skinned asymmetric nanofiltration (NF) membranes were experimentally and theoretically analyzed. Based on Donnan and steric-hindrance transport mechanism, the relationship of performances and key properties of the fabricated nanofiltration membranes were examined. At the optimum concentration of polymer, the skinned nanofiltration membranes achieved high salt rejection up to 85% and high solutes separation efficacy. Moreover, morphological and modeling analysis discovered that, the optimum membranes produced good pore size and fine key properties with 1.20 nm of pore radius, 4.96 µm of ratio of thickness to porosity (∆x/Ak) and −1.56 of surface charge, ζ as well as uniform pore size distributions. The findings from this study proved that the strategic utilization and manipulation of good membranes material is a simple and good attempt to upgrade the membranes capability and usability which lead towards the application in various membrane separation processes.

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基于理论模型的剥皮不对称纳滤膜的性能和结构特性研究

本文对增强蒙皮不对称纳滤膜的性能和结构特性进行了实验和理论分析。基于Donnan和位阻传递机制，考察了制备的纳滤膜的性能与关键性能之间的关系。在最佳的聚合物浓度下，蒙皮纳滤膜具有高达85%的高盐截留率和高溶质分离效率。形态学和模型分析发现，最佳膜具有良好的孔径和优良的关键性能，孔径半径为1.20 nm，厚孔比(∆x/Ak)为4.96µm，表面电荷ζ为- 1.56，孔径分布均匀。本研究的结果证明，对优质膜材料的策略性利用和操作是提高膜性能和可用性的一种简单而良好的尝试，可以在各种膜分离工艺中得到应用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.