Dual super-amphiphilic modified cellulose acetate nanofiber membranes with highly efficient oil/water separation and excellent antifouling properties

Weiwen Wang, Jixin Lin, Jiaqi Cheng, Zhixiang Cui*, Junhui Si, Qianting Wang, Xiangfang Peng, Lih Sheng Turng

*此作品的通信作者

研究成果: 期刊稿件文章同行評審

96 引文 斯高帕斯(Scopus)

摘要

Along with increasing oily, industrial wastewater and seawater pollution, oil spills—and their clean-up via the separation of oil and water—are still a worldwide challenge. Aiming to fabricate an oil/water separation membrane with excellent comprehensive performance, we report here a new type of multifunctional deacetylated cellulose acetate (d-CA) membrane. The cellulose acetate (CA) nanofiber membranes are fabricated by electrospinning and then deacetylated to obtain the d-CA nanofiber membranes, which are super-amphiphilic in air, oleophobic in water, and super-hydrophilic in oil. The multifunctional d-CA nanofiber membranes can be used as water-removal substances for oil/water mixtures, as well as emulsified oil/water and oil/corrosive aqueous systems, with gravity as the only needed driving force. The d-CA nanofiber membranes possess the highest separation flux, reaching up to 38,000 L/m2·h, and the highest separation efficiency, reaching up to 99.97 % for chloroform/water mixtures under the force of gravity. In fact, the separation flux was several times higher than that of commercial CA (c-CA) membranes. The excellent anti-pollution and self-cleaning abilities endow the membranes with powerful cyclic stability and reusability. The d-CA nanofiber membranes show great application prospects in chemical plants, textile mills, and the food industry, as well as offshore oil spills, to separate oil from water.

原文英語
文章編號121582
期刊Journal of Hazardous Materials
385
DOIs
出版狀態已出版 - 05 03 2020
對外發佈

文獻附註

Publisher Copyright:
© 2019 Elsevier B.V.

指紋

深入研究「Dual super-amphiphilic modified cellulose acetate nanofiber membranes with highly efficient oil/water separation and excellent antifouling properties」主題。共同形成了獨特的指紋。

引用此