Wen-Hai Zhang , Yan Wang , Xinao Tian , Yue Liu , Zhenping Qin , Hong Meng , Hongxia Guo
{"title":"Hydrophilic MoS2-Interlayered ceramic supports for high-flux polyamide nanofiltration membranes","authors":"Wen-Hai Zhang , Yan Wang , Xinao Tian , Yue Liu , Zhenping Qin , Hong Meng , Hongxia Guo","doi":"10.1016/j.memsci.2025.124359","DOIUrl":null,"url":null,"abstract":"<div><div>The polyamide/ceramic composite nanofiltration membrane has attracted significant research attention due to its combined advantages of excellent mechanical stability from inorganic substrates and superior separation performance from polyamide layers. Nevertheless, there are still technical challenges in performing direct interfacial polymerization on porous ceramic membranes. To address these limitations, this work developed a novel approach using HP-β-CD as a growth modulator for the <em>in-situ</em> synthesis of hydrophilic MoS<sub>2</sub> on tubular ceramic substrates, creating a MoS<sub>2</sub>/ceramic intermediate layer. Subsequently, a high-performance polyamide nanofiltration membrane was fabricated via interface polymerization on the MoS<sub>2</sub>/ceramic substrate. By systematically optimizing the HP-β-CD concentration in both the precursor solution and aqueous monomer phase, we achieved precise control over both the growth of MoS<sub>2</sub> nanosheets on the tubular ceramic substrate and the polyamide layer structure, enabling tunable nanofiltration performance. The resulting PA/M − 3 NF membrane exhibited excellent nanofiltration performance, with high water permeance (23.8 LMH/bar), exceptional Na<sub>2</sub>SO<sub>4</sub> rejection (97.8 %), and remarkable long-term stability and pressure resistance.</div></div>","PeriodicalId":368,"journal":{"name":"Journal of Membrane Science","volume":"733 ","pages":"Article 124359"},"PeriodicalIF":8.4000,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Membrane Science","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0376738825006726","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
引用次数: 0
Abstract
The polyamide/ceramic composite nanofiltration membrane has attracted significant research attention due to its combined advantages of excellent mechanical stability from inorganic substrates and superior separation performance from polyamide layers. Nevertheless, there are still technical challenges in performing direct interfacial polymerization on porous ceramic membranes. To address these limitations, this work developed a novel approach using HP-β-CD as a growth modulator for the in-situ synthesis of hydrophilic MoS2 on tubular ceramic substrates, creating a MoS2/ceramic intermediate layer. Subsequently, a high-performance polyamide nanofiltration membrane was fabricated via interface polymerization on the MoS2/ceramic substrate. By systematically optimizing the HP-β-CD concentration in both the precursor solution and aqueous monomer phase, we achieved precise control over both the growth of MoS2 nanosheets on the tubular ceramic substrate and the polyamide layer structure, enabling tunable nanofiltration performance. The resulting PA/M − 3 NF membrane exhibited excellent nanofiltration performance, with high water permeance (23.8 LMH/bar), exceptional Na2SO4 rejection (97.8 %), and remarkable long-term stability and pressure resistance.
期刊介绍:
The Journal of Membrane Science is a publication that focuses on membrane systems and is aimed at academic and industrial chemists, chemical engineers, materials scientists, and membranologists. It publishes original research and reviews on various aspects of membrane transport, membrane formation/structure, fouling, module/process design, and processes/applications. The journal primarily focuses on the structure, function, and performance of non-biological membranes but also includes papers that relate to biological membranes. The Journal of Membrane Science publishes Full Text Papers, State-of-the-Art Reviews, Letters to the Editor, and Perspectives.