开发具有荷叶启发结构的仿生物聚偏氟乙烯膜,用于提高油水分离效果

IF 4.9 2区 化学 Q2 CHEMISTRY, PHYSICAL
Md All Amin Newton , Di Gao , Binjie Xin , Yuanshen Zheng , Hugh Gong
{"title":"开发具有荷叶启发结构的仿生物聚偏氟乙烯膜,用于提高油水分离效果","authors":"Md All Amin Newton ,&nbsp;Di Gao ,&nbsp;Binjie Xin ,&nbsp;Yuanshen Zheng ,&nbsp;Hugh Gong","doi":"10.1016/j.colsurfa.2024.135773","DOIUrl":null,"url":null,"abstract":"<div><div>Efficient oil-water separation is crucial for environmental protection and industrial wastewater management; however, existing separation membranes often lack durability and suffer efficiency loss over multiple cycles. This study introduces a bio-inspired polyvinylidene fluoride (PVDF) membrane with a hierarchical lotus leaf-like surface, designed to overcome these limitations by enhancing separation efficiency, operational stability, and reusability. A polyvinylidene fluoride/polyvinylpyrrolidone (PVDF/PVP) composite membrane was fabricated as a support, onto which PVDF/silicon dioxide (SiO₂) micro-nanoparticles were electrostatically sprayed to create a micro-nano papillae structure. This was followed by in-situ polymerization of dopamine (DA), forming a polydopamine (PDA) coating that enhances hydrophilicity and underwater oleophobicity. Optimization experiments identified a 20-minute spraying duration as ideal, achieving uniform micro-nanoparticle distribution and maximizing water permeability, with a pure water flux of 14,321 L·m⁻²·h⁻¹. The PDA/M-P/S-20 membrane demonstrated over 99.9 % separation efficiency for various oil-water mixtures and maintained stable performance across 15 cycles with only a 2.1 % flux loss, a significant improvement over conventional membranes, which often experience rapid fouling and efficiency decline. Additionally, the membrane exhibited underwater oil contact angles above 140°, confirming its excellent underwater oleophobicity and self-cleaning capabilities. This research highlights the critical role of biomimetic design and precise structural control in addressing the durability and reusability limitations of existing separation technologies, offering a scalable, sustainable solution for industrial applications in petrochemical processing and wastewater treatment.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"706 ","pages":"Article 135773"},"PeriodicalIF":4.9000,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Development of a biomimetic polyvinylidene fluoride membrane with a lotus leaf-inspired structure for enhanced oil-water separation\",\"authors\":\"Md All Amin Newton ,&nbsp;Di Gao ,&nbsp;Binjie Xin ,&nbsp;Yuanshen Zheng ,&nbsp;Hugh Gong\",\"doi\":\"10.1016/j.colsurfa.2024.135773\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Efficient oil-water separation is crucial for environmental protection and industrial wastewater management; however, existing separation membranes often lack durability and suffer efficiency loss over multiple cycles. This study introduces a bio-inspired polyvinylidene fluoride (PVDF) membrane with a hierarchical lotus leaf-like surface, designed to overcome these limitations by enhancing separation efficiency, operational stability, and reusability. A polyvinylidene fluoride/polyvinylpyrrolidone (PVDF/PVP) composite membrane was fabricated as a support, onto which PVDF/silicon dioxide (SiO₂) micro-nanoparticles were electrostatically sprayed to create a micro-nano papillae structure. This was followed by in-situ polymerization of dopamine (DA), forming a polydopamine (PDA) coating that enhances hydrophilicity and underwater oleophobicity. Optimization experiments identified a 20-minute spraying duration as ideal, achieving uniform micro-nanoparticle distribution and maximizing water permeability, with a pure water flux of 14,321 L·m⁻²·h⁻¹. The PDA/M-P/S-20 membrane demonstrated over 99.9 % separation efficiency for various oil-water mixtures and maintained stable performance across 15 cycles with only a 2.1 % flux loss, a significant improvement over conventional membranes, which often experience rapid fouling and efficiency decline. Additionally, the membrane exhibited underwater oil contact angles above 140°, confirming its excellent underwater oleophobicity and self-cleaning capabilities. This research highlights the critical role of biomimetic design and precise structural control in addressing the durability and reusability limitations of existing separation technologies, offering a scalable, sustainable solution for industrial applications in petrochemical processing and wastewater treatment.</div></div>\",\"PeriodicalId\":278,\"journal\":{\"name\":\"Colloids and Surfaces A: Physicochemical and Engineering Aspects\",\"volume\":\"706 \",\"pages\":\"Article 135773\"},\"PeriodicalIF\":4.9000,\"publicationDate\":\"2024-11-22\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Colloids and Surfaces A: Physicochemical and Engineering Aspects\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0927775724026372\",\"RegionNum\":2,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0927775724026372","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0

摘要

高效的油水分离对环境保护和工业废水管理至关重要;然而,现有的分离膜往往缺乏耐久性,在多次循环后效率会下降。本研究介绍了一种具有分层荷叶状表面的生物启发聚偏氟乙烯(PVDF)膜,旨在通过提高分离效率、操作稳定性和可重复使用性来克服这些限制。以聚偏氟乙烯/聚乙烯吡咯烷酮(PVDF/PVP)复合膜为支撑物,在其上静电喷涂 PVDF/二氧化硅(SiO₂)微纳米颗粒,以形成微纳米乳头结构。随后对多巴胺(DA)进行原位聚合,形成聚多巴胺(PDA)涂层,增强了亲水性和水下疏油性。优化实验确定 20 分钟的喷涂持续时间最为理想,可实现均匀的微纳米粒子分布和最大的透水性,纯水通量为 14,321 L-m-²-h-¹。PDA/M-P/S-20 膜对各种油水混合物的分离效率超过 99.9%,并在 15 个循环中保持稳定的性能,通量损失仅为 2.1%,与经常出现快速堵塞和效率下降的传统膜相比有了显著改善。此外,该膜的水下油接触角超过 140°,证实了其出色的水下疏油性和自清洁能力。这项研究强调了仿生设计和精确结构控制在解决现有分离技术的耐用性和可重复使用性限制方面的关键作用,为石化加工和废水处理领域的工业应用提供了一种可扩展、可持续的解决方案。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Development of a biomimetic polyvinylidene fluoride membrane with a lotus leaf-inspired structure for enhanced oil-water separation
Efficient oil-water separation is crucial for environmental protection and industrial wastewater management; however, existing separation membranes often lack durability and suffer efficiency loss over multiple cycles. This study introduces a bio-inspired polyvinylidene fluoride (PVDF) membrane with a hierarchical lotus leaf-like surface, designed to overcome these limitations by enhancing separation efficiency, operational stability, and reusability. A polyvinylidene fluoride/polyvinylpyrrolidone (PVDF/PVP) composite membrane was fabricated as a support, onto which PVDF/silicon dioxide (SiO₂) micro-nanoparticles were electrostatically sprayed to create a micro-nano papillae structure. This was followed by in-situ polymerization of dopamine (DA), forming a polydopamine (PDA) coating that enhances hydrophilicity and underwater oleophobicity. Optimization experiments identified a 20-minute spraying duration as ideal, achieving uniform micro-nanoparticle distribution and maximizing water permeability, with a pure water flux of 14,321 L·m⁻²·h⁻¹. The PDA/M-P/S-20 membrane demonstrated over 99.9 % separation efficiency for various oil-water mixtures and maintained stable performance across 15 cycles with only a 2.1 % flux loss, a significant improvement over conventional membranes, which often experience rapid fouling and efficiency decline. Additionally, the membrane exhibited underwater oil contact angles above 140°, confirming its excellent underwater oleophobicity and self-cleaning capabilities. This research highlights the critical role of biomimetic design and precise structural control in addressing the durability and reusability limitations of existing separation technologies, offering a scalable, sustainable solution for industrial applications in petrochemical processing and wastewater treatment.
求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
CiteScore
8.70
自引率
9.60%
发文量
2421
审稿时长
56 days
期刊介绍: Colloids and Surfaces A: Physicochemical and Engineering Aspects is an international journal devoted to the science underlying applications of colloids and interfacial phenomena. The journal aims at publishing high quality research papers featuring new materials or new insights into the role of colloid and interface science in (for example) food, energy, minerals processing, pharmaceuticals or the environment.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信