In situ synthesis of three-dimensional electrospun polyacrylonitrile nanofiber network reinforced silica aerogel for high-efficiency oil/water separation

IF 2.5 4区材料科学 Q2 CHEMISTRY, APPLIED

Journal of Porous Materials Pub Date : 2024-05-19 DOI:10.1007/s10934-024-01625-5

Yi-Ming Li, Fang Liu, Zhen-Zhen Jia, Xuan Cheng, Yu-Ming Zheng, Zai-Dong Shao

{"title":"In situ synthesis of three-dimensional electrospun polyacrylonitrile nanofiber network reinforced silica aerogel for high-efficiency oil/water separation","authors":"Yi-Ming Li, Fang Liu, Zhen-Zhen Jia, Xuan Cheng, Yu-Ming Zheng, Zai-Dong Shao","doi":"10.1007/s10934-024-01625-5","DOIUrl":null,"url":null,"abstract":"<div><p>In situ electrospun 3D polyacrylonitrile (PAN) nanofiber-reinforced (EPNR) silica aerogel monoliths were prepared through methyltriethoxysilane–trimethylchlorosilane modification followed by ambient pressure drying (APD). The 3D PAN nanofiber network was built into silica sol by liquid-assisted collection. Homodispersed and intertwined PAN nanofibers were well incorporated into the silica aerogel matrix. The APD-EPNR silica aerogel had a porosity of 90.9% and a BJH pore volume of 2.15 cm<sup>3</sup> g<sup>−1</sup>. Furthermore, the APD-EPNR silica aerogel monolith showed excellent flexibility and revealed a highly hydrophobic surface with a water contact angle of 145º. The APD-EPNR aerogel was suitable for removal of oil from water. The static mass of the APD-EPNR silica aerogel achieved 700%–1500% to various solvents and the aerogel can be recovered without obvious performance decline. The APD-EPNR silica aerogel mat also achieved oil/water separation with a separation efficiency of more than 99%. Hence, the prepared APD-EPNR silica aerogel has promising application for treatment of oil pollution.</p></div>","PeriodicalId":660,"journal":{"name":"Journal of Porous Materials","volume":"31 5","pages":"1777 - 1787"},"PeriodicalIF":2.5000,"publicationDate":"2024-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Porous Materials","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s10934-024-01625-5","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, APPLIED","Score":null,"Total":0}

引用次数: 0

Abstract

In situ electrospun 3D polyacrylonitrile (PAN) nanofiber-reinforced (EPNR) silica aerogel monoliths were prepared through methyltriethoxysilane–trimethylchlorosilane modification followed by ambient pressure drying (APD). The 3D PAN nanofiber network was built into silica sol by liquid-assisted collection. Homodispersed and intertwined PAN nanofibers were well incorporated into the silica aerogel matrix. The APD-EPNR silica aerogel had a porosity of 90.9% and a BJH pore volume of 2.15 cm³ g⁻¹. Furthermore, the APD-EPNR silica aerogel monolith showed excellent flexibility and revealed a highly hydrophobic surface with a water contact angle of 145º. The APD-EPNR aerogel was suitable for removal of oil from water. The static mass of the APD-EPNR silica aerogel achieved 700%–1500% to various solvents and the aerogel can be recovered without obvious performance decline. The APD-EPNR silica aerogel mat also achieved oil/water separation with a separation efficiency of more than 99%. Hence, the prepared APD-EPNR silica aerogel has promising application for treatment of oil pollution.

Abstract Image

查看原文本刊更多论文

原位合成用于高效油水分离的三维电纺聚丙烯腈纳米纤维网络增强型二氧化硅气凝胶

通过甲基三乙氧基硅烷-三甲基氯硅烷改性，然后进行常压干燥（APD），制备了原位电纺三维聚丙烯腈（PAN）纳米纤维增强（EPNR）二氧化硅气凝胶单体。通过液体辅助收集，在二氧化硅溶胶中构建了三维 PAN 纳米纤维网络。均一分散且相互缠绕的 PAN 纳米纤维与二氧化硅气凝胶基质很好地结合在一起。APD-EPNR 二氧化硅气凝胶的孔隙率为 90.9%，BJH 孔体积为 2.15 cm3 g-1。此外，APD-EPNR 二氧化硅气凝胶单体显示出极佳的柔韧性，表面具有高度疏水性，水接触角为 145º。APD-EPNR 气凝胶适用于去除水中的油。APD-EPNR 二氧化硅气凝胶对各种溶剂的静态质量去除率达到 700%-1500% ，而且气凝胶可以回收，性能不会明显下降。APD-EPNR 二氧化硅气凝胶垫还实现了油水分离，分离效率超过 99%。因此，制备的 APD-EPNR 硅气凝胶在油污染处理方面具有广阔的应用前景。

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

Journal of Porous Materials 工程技术-材料科学：综合

CiteScore

4.80

自引率

7.70%

发文量

203

审稿时长

2.6 months

期刊介绍： The Journal of Porous Materials is an interdisciplinary and international periodical devoted to all types of porous materials. Its aim is the rapid publication of high quality, peer-reviewed papers focused on the synthesis, processing, characterization and property evaluation of all porous materials. The objective is to establish a unique journal that will serve as a principal means of communication for the growing interdisciplinary field of porous materials. Porous materials include microporous materials with 50 nm pores. Examples of microporous materials are natural and synthetic molecular sieves, cationic and anionic clays, pillared clays, tobermorites, pillared Zr and Ti phosphates, spherosilicates, carbons, porous polymers, xerogels, etc. Mesoporous materials include synthetic molecular sieves, xerogels, aerogels, glasses, glass ceramics, porous polymers, etc.; while macroporous materials include ceramics, glass ceramics, porous polymers, aerogels, cement, etc. The porous materials can be crystalline, semicrystalline or noncrystalline, or combinations thereof. They can also be either organic, inorganic, or their composites. The overall objective of the journal is the establishment of one main forum covering the basic and applied aspects of all porous materials.