Superhydrophobic ZIF-8-based fibrous membranes for highly effective oil-water separation

IF 2.4 3区化学 Q4 CHEMISTRY, PHYSICAL

Chemical Physics Pub Date : 2025-10-11 DOI:10.1016/j.chemphys.2025.112970

Junjie Zhang, Haixia Chen, Jijun Ding, Yongfeng Qu, Haiwei Fu

{"title":"Superhydrophobic ZIF-8-based fibrous membranes for highly effective oil-water separation","authors":"Junjie Zhang, Haixia Chen, Jijun Ding, Yongfeng Qu, Haiwei Fu","doi":"10.1016/j.chemphys.2025.112970","DOIUrl":null,"url":null,"abstract":"<div><div>The superhydrophobic membranes with low-cost, eco-friendly, and high-performance is a current research focus. In this paper, ZIF-8 particles are synthesized at room temperature and subsequently mixed with graphene oxide with controlled proportions. The resulting composite membrane is fabricated on a fibrous substrate via vacuum filtration. By tailoring the surface microstructure, the wettability of the composite film is effectively modulated. Experimental results demonstrate that the membrane exhibits superhydrophobicity, with a water contact angle of 156° and a separation flux of 31,428.77 L·m<sup>−2</sup>·h<sup>−1</sup> for low-viscosity oils. The membrane shows excellent separation efficiency (>99 %) across oils with varying viscosities. Furthermore, the separation performance remains stable, with efficiency above 99 % after 20 cycles and above 98 % after a 30-day long-term test. The combination of facile preparation, environmental friendliness, and outstanding separation performance highlights the potential of this composite membrane for low-cost, high-efficiency oil-water separation applications.</div></div>","PeriodicalId":272,"journal":{"name":"Chemical Physics","volume":"601 ","pages":"Article 112970"},"PeriodicalIF":2.4000,"publicationDate":"2025-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chemical Physics","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0301010425003714","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}

引用次数: 0

Abstract

The superhydrophobic membranes with low-cost, eco-friendly, and high-performance is a current research focus. In this paper, ZIF-8 particles are synthesized at room temperature and subsequently mixed with graphene oxide with controlled proportions. The resulting composite membrane is fabricated on a fibrous substrate via vacuum filtration. By tailoring the surface microstructure, the wettability of the composite film is effectively modulated. Experimental results demonstrate that the membrane exhibits superhydrophobicity, with a water contact angle of 156° and a separation flux of 31,428.77 L·m⁻²·h⁻¹ for low-viscosity oils. The membrane shows excellent separation efficiency (>99 %) across oils with varying viscosities. Furthermore, the separation performance remains stable, with efficiency above 99 % after 20 cycles and above 98 % after a 30-day long-term test. The combination of facile preparation, environmental friendliness, and outstanding separation performance highlights the potential of this composite membrane for low-cost, high-efficiency oil-water separation applications.

查看原文本刊更多论文

超疏水zif -8基纤维膜，高效油水分离

低成本、环保、高性能的超疏水膜是当前研究的热点。在本文中，ZIF-8颗粒在室温下合成，随后与氧化石墨烯以控制比例混合。所述复合膜通过真空过滤在纤维基板上制备。通过调整表面微观结构，可以有效地调节复合膜的润湿性。实验结果表明，该膜具有超疏水性，水接触角为156°，对低粘度油的分离通量为31428.77 L·m−2·h−1。该膜在不同粘度的油中表现出优异的分离效率（99%）。分离性能稳定，经过20次循环，分离效率在99%以上，经过30天的长期试验，分离效率在98%以上。该复合膜制备简单、环境友好、分离性能优异，具有低成本、高效率的油水分离应用潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Chemical Physics 化学-物理：原子、分子和化学物理

CiteScore

4.60

自引率

4.30%

发文量

278

审稿时长

39 days

期刊介绍： Chemical Physics publishes experimental and theoretical papers on all aspects of chemical physics. In this journal, experiments are related to theory, and in turn theoretical papers are related to present or future experiments. Subjects covered include: spectroscopy and molecular structure, interacting systems, relaxation phenomena, biological systems, materials, fundamental problems in molecular reactivity, molecular quantum theory and statistical mechanics. Computational chemistry studies of routine character are not appropriate for this journal.